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Back out array mega-patch. 

Joe Conway
This commit is contained in:
Bruce Momjian 2003-06-25 21:30:34 +00:00
parent 621691d816
commit 111d8e522b
42 changed files with 676 additions and 2615 deletions
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287
doc/src/sgml/array.sgml
View File

@ -1,4 +1,4 @@
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/array.sgml,v 1.26 2003/06/24 23:14:42 momjian Exp $ -->
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/array.sgml,v 1.27 2003/06/25 21:30:25 momjian Exp $ -->
<sect1 id="arrays">
<title>Arrays</title>
@ -60,74 +60,14 @@ INSERT INTO sal_emp
</programlisting>
</para>
<para>
A limitation of the present array implementation is that individual
elements of an array cannot be SQL null values. The entire array can be set
to null, but you can't have an array with some elements null and some
not.
</para>
<para>
This can lead to surprising results. For example, the result of the
previous two inserts looks like this:
<programlisting>
SELECT * FROM sal_emp;
name | pay_by_quarter | schedule
-------+---------------------------+--------------------
Bill | {10000,10000,10000,10000} | {{meeting},{""}}
Carol | {20000,25000,25000,25000} | {{talk},{meeting}}
(2 rows)
</programlisting>
Because the <literal>[2][2]</literal> element of
<structfield>schedule</structfield> is missing in each of the
<command>INSERT</command> statements, the <literal>[1][2]</literal>
element is discarded.
</para>
<note>
<para>
Fixing this is on the to-do list.
A limitation of the present array implementation is that individual
elements of an array cannot be SQL null values. The entire array can be set
to null, but you can't have an array with some elements null and some
not. Fixing this is on the to-do list.
</para>
</note>
<para>
The <command>ARRAY</command> expression syntax may also be used:
<programlisting>
INSERT INTO sal_emp
VALUES ('Bill',
ARRAY[10000, 10000, 10000, 10000],
ARRAY[['meeting', 'lunch'], ['','']]);
INSERT INTO sal_emp
VALUES ('Carol',
ARRAY[20000, 25000, 25000, 25000],
ARRAY[['talk', 'consult'], ['meeting', '']]);
SELECT * FROM sal_emp;
name | pay_by_quarter | schedule
-------+---------------------------+-------------------------------
Bill | {10000,10000,10000,10000} | {{meeting,lunch},{"",""}}
Carol | {20000,25000,25000,25000} | {{talk,consult},{meeting,""}}
(2 rows)
</programlisting>
Note that with this syntax, multidimensional arrays must have matching
extents for each dimension. This eliminates the missing-array-elements
problem above. For example:
<programlisting>
INSERT INTO sal_emp
VALUES ('Carol',
ARRAY[20000, 25000, 25000, 25000],
ARRAY[['talk', 'consult'], ['meeting']]);
ERROR: Multidimensional arrays must have array expressions with matching dimensions
</programlisting>
Also notice that string literals are single quoted instead of double quoted.
</para>
<note>
<para>
The examples in the rest of this section are based on the
<command>ARRAY</command> expression syntax <command>INSERT</command>s.
</para>
</note>
</sect2>
<sect2>
@ -192,30 +132,11 @@ SELECT schedule[1:2][1] FROM sal_emp WHERE name = 'Bill';
</programlisting>
with the same result. An array subscripting operation is always taken to
represent an array slice if any of the subscripts are written in the form
represent an array slice if any of the subscripts are written in the
form
<literal><replaceable>lower</replaceable>:<replaceable>upper</replaceable></literal>.
A lower bound of 1 is assumed for any subscript where only one value
is specified; another example follows:
<programlisting>
SELECT schedule[1:2][2] FROM sal_emp WHERE name = 'Bill';
schedule
---------------------------
{{meeting,lunch},{"",""}}
(1 row)
</programlisting>
</para>
<para>
Additionally, we can also access a single arbitrary array element of
a one-dimensional array with the <function>array_subscript</function>
function:
<programlisting>
SELECT array_subscript(pay_by_quarter, 2) FROM sal_emp WHERE name = 'Bill';
array_subscript
-----------------
10000
(1 row)
</programlisting>
is specified.
</para>
<para>
@ -226,23 +147,7 @@ UPDATE sal_emp SET pay_by_quarter = '{25000,25000,27000,27000}'
WHERE name = 'Carol';
</programlisting>
or using the <command>ARRAY</command> expression syntax:
<programlisting>
UPDATE sal_emp SET pay_by_quarter = ARRAY[25000,25000,27000,27000]
WHERE name = 'Carol';
</programlisting>
<note>
<para>
Anywhere you can use the <quote>curly braces</quote> array syntax,
you can also use the <command>ARRAY</command> expression syntax. The
remainder of this section will illustrate only one or the other, but
not both.
</para>
</note>
An array may also be updated at a single element:
or updated at a single element:
<programlisting>
UPDATE sal_emp SET pay_by_quarter[4] = 15000
@ -255,14 +160,6 @@ UPDATE sal_emp SET pay_by_quarter[4] = 15000
UPDATE sal_emp SET pay_by_quarter[1:2] = '{27000,27000}'
WHERE name = 'Carol';
</programlisting>
A one-dimensional array may also be updated with the
<function>array_assign</function> function:
<programlisting>
UPDATE sal_emp SET pay_by_quarter = array_assign(pay_by_quarter, 4, 15000)
WHERE name = 'Bill';
</programListing>
</para>
<para>
@ -281,88 +178,6 @@ UPDATE sal_emp SET pay_by_quarter = array_assign(pay_by_quarter, 4, 15000)
create an array with subscript values running from -2 to 7.
</para>
<para>
An array can also be enlarged by using the concatenation operator,
<command>||</command>.
<programlisting>
SELECT ARRAY[1,2] || ARRAY[3,4];
?column?
---------------
{{1,2},{3,4}}
(1 row)
SELECT ARRAY[5,6] || ARRAY[[1,2],[3,4]];
?column?
---------------------
{{5,6},{1,2},{3,4}}
(1 row)
</programlisting>
The concatenation operator allows a single element to be pushed on to the
beginning or end of a one-dimensional array. It also allows two
<replaceable>N</>-dimensional arrays, or an <replaceable>N</>-dimensional
and an <replaceable>N+1</>-dimensional array. In the former case, the two
<replaceable>N</>-dimension arrays become outer elements of an
<replaceable>N+1</>-dimensional array. In the latter, the
<replaceable>N</>-dimensional array is added as either the first or last
outer element of the <replaceable>N+1</>-dimensional array.
The array is extended in the direction of the push. Hence, by pushing
onto the beginning of an array with a one-based subscript, a zero-based
subscript array is created:
<programlisting>
SELECT array_dims(t.f) FROM (SELECT 1 || ARRAY[2,3] AS f) AS t;
array_dims
------------
[0:2]
(1 row)
</programlisting>
</para>
<para>
An array can also be enlarged by using the functions
<function>array_prepend</function>, <function>array_append</function>,
or <function>array_cat</function>. The first two only support one-dimensional
arrays, but <function>array_cat</function> supports multidimensional arrays.
Note that the concatenation operator discussed above is preferred over
direct use of these functions. In fact, the functions are primarily for use
in implementing the concatenation operator. However, they may be directly
useful in the creation of user-defined aggregates. Some examples:
<programlisting>
SELECT array_prepend(1, ARRAY[2,3]);
array_prepend
---------------
{1,2,3}
(1 row)
SELECT array_append(ARRAY[1,2], 3);
array_append
--------------
{1,2,3}
(1 row)
SELECT array_cat(ARRAY[1,2], ARRAY[3,4]);
array_cat
---------------
{{1,2},{3,4}}
(1 row)
SELECT array_cat(ARRAY[[1,2],[3,4]], ARRAY[5,6]);
array_cat
---------------------
{{1,2},{3,4},{5,6}}
(1 row)
SELECT array_cat(ARRAY[5,6], ARRAY[[1,2],[3,4]]);
array_cat
---------------------
{{5,6},{1,2},{3,4}}
</programlisting>
</para>
<para>
The syntax for <command>CREATE TABLE</command> allows fixed-length
arrays to be defined:
@ -378,16 +193,6 @@ CREATE TABLE tictactoe (
length.
</para>
<para>
An alternative syntax for one-dimensional arrays may be used.
<structfield>pay_by_quarter</structfield> could have been defined as:
<programlisting>
pay_by_quarter integer ARRAY[4],
</programlisting>
This syntax may <emphasis>only</emphasis> be used with the integer
constant to denote the array size.
</para>
<para>
Actually, the current implementation does not enforce the declared
number of dimensions either. Arrays of a particular element type are
@ -495,72 +300,6 @@ SELECT * FROM sal_emp WHERE pay_by_quarter **= 10000;
is not ignored, however: after skipping leading whitespace, everything
up to the next right brace or delimiter is taken as the item value.
</para>
<para>
As illustrated earlier in this chapter, arrays may also be represented
using the <command>ARRAY</command> expression syntax. This representation
of an array value consists of items that are interpreted according to the
I/O conversion rules for the array's element type, plus decoration that
indicates the array structure. The decoration consists of the keyword
<command>ARRAY</command> and square brackets (<literal>[</> and
<literal>]</>) around the array values, plus delimiter characters between
adjacent items. The delimiter character is always a comma (<literal>,</>).
When representing multidimensional arrays, the keyword
<command>ARRAY</command> is only necessary for the outer level. For example,
<literal>'{{"hello world", "happy birthday"}}'</literal> could be written as:
<programlisting>
SELECT ARRAY[['hello world', 'happy birthday']];
array
------------------------------------
{{"hello world","happy birthday"}}
(1 row)
</programlisting>
or it also could be written as:
<programlisting>
SELECT ARRAY[ARRAY['hello world', 'happy birthday']];
array
------------------------------------
{{"hello world","happy birthday"}}
(1 row)
</programlisting>
</para>
<para>
A final method to represent an array, is through an
<command>ARRAY</command> sub-select expression. For example:
<programlisting>
SELECT ARRAY(SELECT oid FROM pg_proc WHERE proname LIKE 'bytea%');
?column?
-------------------------------------------------------------
{2011,1954,1948,1952,1951,1244,1950,2005,1949,1953,2006,31}
(1 row)
</programlisting>
The sub-select may <emphasis>only</emphasis> return a single column. The
resulting one-dimensional array will have an element for each row in the
sub-select result, with an element type matching that of the sub-select's
target column.
</para>
<para>
Arrays may be cast from one type to another in similar fashion to other
data types:
<programlisting>
SELECT ARRAY[1,2,3]::oid[];
array
---------
{1,2,3}
(1 row)
SELECT CAST(ARRAY[1,2,3] AS float8[]);
array
---------
{1,2,3}
(1 row)
</programlisting>
</para>
</sect2>
<sect2>
@ -578,14 +317,6 @@ SELECT CAST(ARRAY[1,2,3] AS float8[]);
that would otherwise be taken as array syntax or ignorable white space.
</para>
<note>
<para>
The discussion in the preceding paragraph with respect to double quoting does
not pertain to the <command>ARRAY</command> expression syntax. In that case,
each element is quoted exactly as any other literal value of the element type.
</para>
</note>
<para>
The array output routine will put double quotes around element values
if they are empty strings or contain curly braces, delimiter characters,

199
doc/src/sgml/func.sgml
View File

@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.155 2003/06/24 23:14:42 momjian Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.156 2003/06/25 21:30:25 momjian Exp $
PostgreSQL documentation
-->
@ -6962,203 +6962,6 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
</sect1>
<sect1 id="functions-array">
<title>Array Functions</title>
<para>
<xref linkend="array-operators-table"> shows the operators
available for the <type>array</type> types.
</para>
<table id="array-operators-table">
<title><type>array</type> Operators</title>
<tgroup cols="4">
<thead>
<row>
<entry>Operator</entry>
<entry>Description</entry>
<entry>Example</entry>
<entry>Result</entry>
</row>
</thead>
<tbody>
<row>
<entry> <literal>=</literal> </entry>
<entry>equals</entry>
<entry><literal>ARRAY[1.1,2.1,3.1]::int[] = ARRAY[1,2,3]</literal></entry>
<entry><literal>t</literal></entry>
</row>
<row>
<entry> <literal>||</literal> </entry>
<entry>array-to-array concatenation</entry>
<entry><literal>ARRAY[1,2,3] || ARRAY[4,5,6]</literal></entry>
<entry><literal>{{1,2,3},{4,5,6}}</literal></entry>
</row>
<row>
<entry> <literal>||</literal> </entry>
<entry>array-to-array concatenation</entry>
<entry><literal>ARRAY[1,2,3] || ARRAY[[4,5,6],[7,8,9]]</literal></entry>
<entry><literal>{{1,2,3},{4,5,6},{7,8,9}}</literal></entry>
</row>
<row>
<entry> <literal>||</literal> </entry>
<entry>element-to-array concatenation</entry>
<entry><literal>3 || ARRAY[4,5,6]</literal></entry>
<entry><literal>{3,4,5,6}</literal></entry>
</row>
<row>
<entry> <literal>||</literal> </entry>
<entry>array-to-element concatenation</entry>
<entry><literal>ARRAY[4,5,6] || 7</literal></entry>
<entry><literal>{4,5,6,7}</literal></entry>
</row>
</tbody>
</tgroup>
</table>
<para>
<xref linkend="array-functions-table"> shows the functions
available for use with array types. See <xref linkend="arrays">
for more discussion and examples for the use of these functions.
</para>
<table id="array-functions-table">
<title><type>array</type> Functions</title>
<tgroup cols="5">
<thead>
<row>
<entry>Function</entry>
<entry>Return Type</entry>
<entry>Description</entry>
<entry>Example</entry>
<entry>Result</entry>
</row>
</thead>
<tbody>
<row>
<entry>
<literal>
<function>array_append</function>
(<type>anyarray</type>, <type>anyelement</type>)
</literal>
</entry>
<entry><type>anyarray</type></entry>
<entry>
append an element to the end of an array, returning
<literal>NULL</literal> for <literal>NULL</literal> inputs
</entry>
<entry><literal>array_append(ARRAY[1,2], 3)</literal></entry>
<entry><literal>{1,2,3}</literal></entry>
</row>
<row>
<entry>
<literal>
<function>array_cat</function>
(<type>anyarray</type>, <type>anyarray</type>)
</literal>
</entry>
<entry><type>anyarray</type></entry>
<entry>
concatenate two arrays, returning <literal>NULL</literal>
for <literal>NULL</literal> inputs
</entry>
<entry><literal>array_cat(ARRAY[1,2,3], ARRAY[4,5,6])</literal></entry>
<entry><literal>{{1,2,3},{4,5,6}}</literal></entry>
</row>
<row>
<entry>
<literal>
<function>array_dims</function>
(<type>anyarray</type>)
</literal>
</entry>
<entry><type>text</type></entry>
<entry>
returns a text representation of array dimension lower and upper bounds,
generating an ERROR for <literal>NULL</literal> inputs
</entry>
<entry><literal>array_dims(array[[1,2,3],[4,5,6]])</literal></entry>
<entry><literal>[1:2][1:3]</literal></entry>
</row>
<row>
<entry>
<literal>
<function>array_lower</function>
(<type>anyarray</type>, <type>integer</type>)
</literal>
</entry>
<entry><type>integer</type></entry>
<entry>
returns lower bound of the requested array dimension, returning
<literal>NULL</literal> for <literal>NULL</literal> inputs
</entry>
<entry><literal>array_lower(array_prepend(0, ARRAY[1,2,3]), 1)</literal></entry>
<entry><literal>0</literal></entry>
</row>
<row>
<entry>
<literal>
<function>array_prepend</function>
(<type>anyelement</type>, <type>anyarray</type>)
</literal>
</entry>
<entry><type>anyarray</type></entry>
<entry>
append an element to the beginning of an array, returning
<literal>NULL</literal> for <literal>NULL</literal> inputs
</entry>
<entry><literal>array_prepend(1, ARRAY[2,3])</literal></entry>
<entry><literal>{1,2,3}</literal></entry>
</row>
<row>
<entry>
<literal>
<function>array_to_string</function>
(<type>anyarray</type>, <type>text</type>)
</literal>
</entry>
<entry><type>text</type></entry>
<entry>
concatenates array elements using provided delimiter, returning
<literal>NULL</literal> for <literal>NULL</literal> inputs
</entry>
<entry><literal>array_to_string(array[1.1,2.2,3.3]::numeric(4,2)[],'~^~')</literal></entry>
<entry><literal>1.10~^~2.20~^~3.30</literal></entry>
</row>
<row>
<entry>
<literal>
<function>array_upper</function>
(<type>anyarray</type>, <type>integer</type>)
</literal>
</entry>
<entry><type>integer</type></entry>
<entry>
returns upper bound of the requested array dimension, returning
<literal>NULL</literal> for <literal>NULL</literal> inputs
</entry>
<entry><literal>array_upper(array_append(ARRAY[1,2,3], 4), 1)</literal></entry>
<entry><literal>4</literal></entry>
</row>
<row>
<entry>
<literal>
<function>string_to_array</function>
(<type>text</type>, <type>text</type>)
</literal>
</entry>
<entry><type>text[]</type></entry>
<entry>
splits string into array elements using provided delimiter, returning
<literal>NULL</literal> for <literal>NULL</literal> inputs
</entry>
<entry><literal>string_to_array('1.10~^~2.20~^~3.30','~^~')::float8[]</literal></entry>
<entry><literal>{1.1,2.2,3.3}</literal></entry>
</row>
</tbody>
</tgroup>
</table>
</sect1>
<sect1 id="functions-aggregate">
<title>Aggregate Functions</title>

99
src/backend/catalog/pg_aggregate.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/catalog/pg_aggregate.c,v 1.57 2003/06/24 23:14:42 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/catalog/pg_aggregate.c,v 1.58 2003/06/25 21:30:25 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -50,16 +50,10 @@ AggregateCreate(const char *aggName,
Oid finalfn = InvalidOid; /* can be omitted */
Oid finaltype;
Oid fnArgs[FUNC_MAX_ARGS];
int nargs_transfn;
int nargs_finalfn;
int nargs;
Oid procOid;
TupleDesc tupDesc;
int i;
Oid rettype;
Oid *true_oid_array_transfn;
Oid *true_oid_array_finalfn;
bool retset;
FuncDetailCode fdresult;
ObjectAddress myself,
referenced;
@ -74,49 +68,24 @@ AggregateCreate(const char *aggName,
MemSet(fnArgs, 0, FUNC_MAX_ARGS * sizeof(Oid));
fnArgs[0] = aggTransType;
if (aggBaseType == ANYOID)
nargs_transfn = 1;
nargs = 1;
else
{
fnArgs[1] = aggBaseType;
nargs_transfn = 2;
nargs = 2;
}
/*
* func_get_detail looks up the function in the catalogs, does
* disambiguation for polymorphic functions, handles inheritance, and
* returns the funcid and type and set or singleton status of the
* function's return value. it also returns the true argument types
* to the function.
*/
fdresult = func_get_detail(aggtransfnName, NIL, nargs_transfn, fnArgs,
&transfn, &rettype, &retset,
&true_oid_array_transfn);
/* only valid case is a normal function */
if (fdresult != FUNCDETAIL_NORMAL)
func_error("AggregateCreate", aggtransfnName, nargs_transfn, fnArgs, NULL);
transfn = LookupFuncName(aggtransfnName, nargs, fnArgs);
if (!OidIsValid(transfn))
func_error("AggregateCreate", aggtransfnName, nargs_transfn, fnArgs, NULL);
/*
* enforce consistency with ANYARRAY and ANYELEMENT argument
* and return types, possibly modifying return type along the way
*/
rettype = enforce_generic_type_consistency(fnArgs, true_oid_array_transfn,
nargs_transfn, rettype);
if (rettype != aggTransType)
elog(ERROR, "return type of transition function %s is not %s",
NameListToString(aggtransfnName), format_type_be(aggTransType));
func_error("AggregateCreate", aggtransfnName, nargs, fnArgs, NULL);
tup = SearchSysCache(PROCOID,
ObjectIdGetDatum(transfn),
0, 0, 0);
if (!HeapTupleIsValid(tup))
func_error("AggregateCreate", aggtransfnName,
nargs_transfn, fnArgs, NULL);
func_error("AggregateCreate", aggtransfnName, nargs, fnArgs, NULL);
proc = (Form_pg_proc) GETSTRUCT(tup);
if (proc->prorettype != aggTransType)
elog(ERROR, "return type of transition function %s is not %s",
NameListToString(aggtransfnName), format_type_be(aggTransType));
/*
* If the transfn is strict and the initval is NULL, make sure input
@ -136,26 +105,17 @@ AggregateCreate(const char *aggName,
{
MemSet(fnArgs, 0, FUNC_MAX_ARGS * sizeof(Oid));
fnArgs[0] = aggTransType;
nargs_finalfn = 1;
fdresult = func_get_detail(aggfinalfnName, NIL, 1, fnArgs,
&finalfn, &rettype, &retset,
&true_oid_array_finalfn);
/* only valid case is a normal function */
if (fdresult != FUNCDETAIL_NORMAL)
func_error("AggregateCreate", aggfinalfnName, 1, fnArgs, NULL);
finalfn = LookupFuncName(aggfinalfnName, 1, fnArgs);
if (!OidIsValid(finalfn))
func_error("AggregateCreate", aggfinalfnName, 1, fnArgs, NULL);
/*
* enforce consistency with ANYARRAY and ANYELEMENT argument
* and return types, possibly modifying return type along the way
*/
finaltype = enforce_generic_type_consistency(fnArgs,
true_oid_array_finalfn,
nargs_finalfn, rettype);
tup = SearchSysCache(PROCOID,
ObjectIdGetDatum(finalfn),
0, 0, 0);
if (!HeapTupleIsValid(tup))
func_error("AggregateCreate", aggfinalfnName, 1, fnArgs, NULL);
proc = (Form_pg_proc) GETSTRUCT(tup);
finaltype = proc->prorettype;
ReleaseSysCache(tup);
}
else
{
@ -166,27 +126,6 @@ AggregateCreate(const char *aggName,
}
Assert(OidIsValid(finaltype));
/*
* special disallowed cases:
* 1) if finaltype is polymorphic, basetype cannot be ANY
* 2) if finaltype is polymorphic, both args to transfn must be
* polymorphic
*/
if (finaltype == ANYARRAYOID || finaltype == ANYELEMENTOID)
{
if (aggBaseType == ANYOID)
elog(ERROR, "aggregate with base type ANY must have a " \
"non-polymorphic return type");
if (nargs_transfn > 1 && (
(true_oid_array_transfn[0] != ANYARRAYOID &&
true_oid_array_transfn[0] != ANYELEMENTOID) ||
(true_oid_array_transfn[1] != ANYARRAYOID &&
true_oid_array_transfn[1] != ANYELEMENTOID)))
elog(ERROR, "aggregate with polymorphic return type requires " \
"state function with both arguments polymorphic");
}
/*
* Everything looks okay. Try to create the pg_proc entry for the
* aggregate. (This could fail if there's already a conflicting

6
src/backend/commands/aggregatecmds.c
View File

@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/aggregatecmds.c,v 1.6 2003/06/24 23:14:43 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/aggregatecmds.c,v 1.7 2003/06/25 21:30:26 momjian Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
@ -119,9 +119,7 @@ DefineAggregate(List *names, List *parameters)
baseTypeId = typenameTypeId(baseType);
transTypeId = typenameTypeId(transType);
if (get_typtype(transTypeId) == 'p' &&
transTypeId != ANYARRAYOID &&
transTypeId != ANYELEMENTOID)
if (get_typtype(transTypeId) == 'p')
elog(ERROR, "Aggregate transition datatype cannot be %s",
format_type_be(transTypeId));

8
src/backend/executor/execQual.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execQual.c,v 1.131 2003/06/24 23:14:43 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execQual.c,v 1.132 2003/06/25 21:30:28 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -1528,17 +1528,17 @@ ExecEvalArray(ArrayExprState *astate, ExprContext *econtext,
{
/* Check other sub-arrays are compatible */
if (elem_ndims != ARR_NDIM(array))
elog(ERROR, "Multidimensional arrays must have array "
elog(ERROR, "Multiple dimension arrays must have array "
"expressions with matching number of dimensions");
if (memcmp(elem_dims, ARR_DIMS(array),
elem_ndims * sizeof(int)) != 0)
elog(ERROR, "Multidimensional arrays must have array "
elog(ERROR, "Multiple dimension arrays must have array "
"expressions with matching dimensions");
if (memcmp(elem_lbs, ARR_LBOUND(array),
elem_ndims * sizeof(int)) != 0)
elog(ERROR, "Multidimensional arrays must have array "
elog(ERROR, "Multiple dimension arrays must have array "
"expressions with matching dimensions");
}

223
src/backend/executor/nodeAgg.c
View File

@ -45,7 +45,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/nodeAgg.c,v 1.108 2003/06/24 23:14:43 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/nodeAgg.c,v 1.109 2003/06/25 21:30:28 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -58,7 +58,6 @@
#include "executor/executor.h"
#include "executor/nodeAgg.h"
#include "miscadmin.h"
#include "nodes/makefuncs.h"
#include "optimizer/clauses.h"
#include "parser/parse_coerce.h"
#include "parser/parse_expr.h"
@ -213,7 +212,7 @@ static TupleTableSlot *agg_retrieve_direct(AggState *aggstate);
static void agg_fill_hash_table(AggState *aggstate);
static TupleTableSlot *agg_retrieve_hash_table(AggState *aggstate);
static Datum GetAggInitVal(Datum textInitVal, Oid transtype);
static Oid resolve_type(Oid type_to_resolve, Oid context_type);
/*
* Initialize all aggregates for a new group of input values.
@ -352,12 +351,14 @@ advance_transition_function(AggState *aggstate,
fcinfo.context = NULL;
fcinfo.resultinfo = NULL;
fcinfo.isnull = false;
fcinfo.flinfo = &peraggstate->transfn;
fcinfo.nargs = 2;
fcinfo.arg[0] = pergroupstate->transValue;
fcinfo.argnull[0] = pergroupstate->transValueIsNull;
fcinfo.arg[1] = newVal;
fcinfo.argnull[1] = isNull;
newVal = FunctionCallInvoke(&fcinfo);
/*
@ -1186,21 +1187,7 @@ ExecInitAgg(Agg *node, EState *estate)
AclResult aclresult;
Oid transfn_oid,
finalfn_oid;
FuncExpr *transfnexpr,
*finalfnexpr;
Datum textInitVal;
List *fargs;
Oid agg_rt_type;
Oid *transfn_arg_types;
List *transfn_args = NIL;
int transfn_nargs;
Oid transfn_ret_type;
Oid *finalfn_arg_types = NULL;
List *finalfn_args = NIL;
Oid finalfn_ret_type = InvalidOid;
int finalfn_nargs = 0;
Node *arg0;
Node *arg1;
int i;
/* Planner should have assigned aggregate to correct level */
@ -1251,166 +1238,6 @@ ExecInitAgg(Agg *node, EState *estate)
&peraggstate->transtypeLen,
&peraggstate->transtypeByVal);
peraggstate->transfn_oid = transfn_oid = aggform->aggtransfn;
peraggstate->finalfn_oid = finalfn_oid = aggform->aggfinalfn;
/* get the runtime aggregate argument type */
fargs = aggref->args;
agg_rt_type = exprType((Node *) nth(0, fargs));
/* get the transition function argument and return types */
transfn_ret_type = get_func_rettype(transfn_oid);
transfn_arg_types = get_func_argtypes(transfn_oid, &transfn_nargs);
/* resolve any polymorphic types */
if (transfn_nargs == 2)
/* base type was not ANY */
{
if (transfn_arg_types[1] == ANYARRAYOID ||
transfn_arg_types[1] == ANYELEMENTOID)
transfn_arg_types[1] = agg_rt_type;
transfn_arg_types[0] = resolve_type(transfn_arg_types[0],
agg_rt_type);
/*
* Build arg list to use on the transfn FuncExpr node. We really
* only care that the node type is correct so that the transfn
* can discover the actual argument types at runtime using
* get_fn_expr_argtype()
*/
arg0 = (Node *) makeRelabelType((Expr *) NULL, transfn_arg_types[0],
-1, COERCE_DONTCARE);
arg1 = (Node *) makeRelabelType((Expr *) NULL, transfn_arg_types[1],
-1, COERCE_DONTCARE);
transfn_args = makeList2(arg0, arg1);
/*
* the state transition function always returns the same type
* as its first argument
*/
if (transfn_ret_type == ANYARRAYOID ||
transfn_ret_type == ANYELEMENTOID)
transfn_ret_type = transfn_arg_types[0];
}
else if (transfn_nargs == 1)
/*
* base type was ANY, therefore the aggregate return type should
* be non-polymorphic
*/
{
Oid finaltype = get_func_rettype(aggref->aggfnoid);
/*
* this should have been prevented in AggregateCreate,
* but check anyway
*/
if (finaltype == ANYARRAYOID || finaltype == ANYELEMENTOID)
elog(ERROR, "aggregate with base type ANY must have a " \
"non-polymorphic return type");
/* see if we have a final function */
if (OidIsValid(finalfn_oid))
{
finalfn_arg_types = get_func_argtypes(finalfn_oid, &finalfn_nargs);
if (finalfn_nargs != 1)
elog(ERROR, "final function takes unexpected number " \
"of arguments: %d", finalfn_nargs);
/*
* final function argument is always the same as the state
* function return type
*/
if (finalfn_arg_types[0] != ANYARRAYOID &&
finalfn_arg_types[0] != ANYELEMENTOID)
{
/* if it is not ambiguous, use it */
transfn_ret_type = finalfn_arg_types[0];
}
else
{
/* if it is ambiguous, try to derive it */
finalfn_ret_type = finaltype;
finalfn_arg_types[0] = resolve_type(finalfn_arg_types[0],
finalfn_ret_type);
transfn_ret_type = finalfn_arg_types[0];
}
}
else
transfn_ret_type = finaltype;
transfn_arg_types[0] = resolve_type(transfn_arg_types[0],
transfn_ret_type);
/*
* Build arg list to use on the transfn FuncExpr node. We really
* only care that the node type is correct so that the transfn
* can discover the actual argument types at runtime using
* get_fn_expr_argtype()
*/
arg0 = (Node *) makeRelabelType((Expr *) NULL, transfn_arg_types[0],
-1, COERCE_DONTCARE);
transfn_args = makeList1(arg0);
}
else
elog(ERROR, "state transition function takes unexpected number " \
"of arguments: %d", transfn_nargs);
if (OidIsValid(finalfn_oid))
{
/* get the final function argument and return types */
if (finalfn_ret_type == InvalidOid)
finalfn_ret_type = get_func_rettype(finalfn_oid);
if (!finalfn_arg_types)
{
finalfn_arg_types = get_func_argtypes(finalfn_oid, &finalfn_nargs);
if (finalfn_nargs != 1)
elog(ERROR, "final function takes unexpected number " \
"of arguments: %d", finalfn_nargs);
}
/*
* final function argument is always the same as the state
* function return type, which by now should have been resolved
*/
if (finalfn_arg_types[0] == ANYARRAYOID ||
finalfn_arg_types[0] == ANYELEMENTOID)
finalfn_arg_types[0] = transfn_ret_type;
/*
* Build arg list to use on the finalfn FuncExpr node. We really
* only care that the node type is correct so that the finalfn
* can discover the actual argument type at runtime using
* get_fn_expr_argtype()
*/
arg0 = (Node *) makeRelabelType((Expr *) NULL, finalfn_arg_types[0],
-1, COERCE_DONTCARE);
finalfn_args = makeList1(arg0);
finalfn_ret_type = resolve_type(finalfn_ret_type,
finalfn_arg_types[0]);
}
fmgr_info(transfn_oid, &peraggstate->transfn);
transfnexpr = (FuncExpr *) make_funcclause(transfn_oid,
transfn_ret_type,
false, /* cannot be a set */
COERCE_DONTCARE, /* to match any user expr */
transfn_args);
peraggstate->transfn.fn_expr = (Node *) transfnexpr;
if (OidIsValid(finalfn_oid))
{
fmgr_info(finalfn_oid, &peraggstate->finalfn);
finalfnexpr = (FuncExpr *) make_funcclause(finalfn_oid,
finalfn_ret_type,
false, /* cannot be a set */
COERCE_DONTCARE, /* to match any user expr */
finalfn_args);
peraggstate->finalfn.fn_expr = (Node *) finalfnexpr;
}
/*
* initval is potentially null, so don't try to access it as a
* struct field. Must do it the hard way with SysCacheGetAttr.
@ -1423,7 +1250,14 @@ ExecInitAgg(Agg *node, EState *estate)
peraggstate->initValue = (Datum) 0;
else
peraggstate->initValue = GetAggInitVal(textInitVal,
transfn_arg_types[0]);
aggform->aggtranstype);
peraggstate->transfn_oid = transfn_oid = aggform->aggtransfn;
peraggstate->finalfn_oid = finalfn_oid = aggform->aggfinalfn;
fmgr_info(transfn_oid, &peraggstate->transfn);
if (OidIsValid(finalfn_oid))
fmgr_info(finalfn_oid, &peraggstate->finalfn);
/*
* If the transfn is strict and the initval is NULL, make sure
@ -1635,36 +1469,3 @@ aggregate_dummy(PG_FUNCTION_ARGS)
fcinfo->flinfo->fn_oid);
return (Datum) 0; /* keep compiler quiet */
}
static Oid
resolve_type(Oid type_to_resolve, Oid context_type)
{
Oid resolved_type;
if (context_type == ANYARRAYOID || context_type == ANYELEMENTOID)
resolved_type = type_to_resolve;
else if (type_to_resolve == ANYARRAYOID)
/* any array */
{
Oid context_type_arraytype = get_array_type(context_type);
if (context_type_arraytype != InvalidOid)
resolved_type = context_type_arraytype;
else
resolved_type = context_type;
}
else if (type_to_resolve == ANYELEMENTOID)
/* any element */
{
Oid context_type_elemtype = get_element_type(context_type);
if (context_type_elemtype != InvalidOid)
resolved_type = context_type_elemtype;
else
resolved_type = context_type;
}
else
resolved_type = type_to_resolve;
return resolved_type;
}

496
src/backend/executor/nodeSubplan.c
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSubplan.c,v 1.48 2003/06/24 23:14:43 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSubplan.c,v 1.49 2003/06/25 21:30:29 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -28,6 +28,23 @@
#include "utils/datum.h"
#include "utils/lsyscache.h"
typedef struct ArrayBuildState
{
MemoryContext mcontext; /* where all the temp stuff is kept */
Datum *dvalues; /* array of accumulated Datums */
/*
* The allocated size of dvalues[] is always a multiple of
* ARRAY_ELEMS_CHUNKSIZE
*/
#define ARRAY_ELEMS_CHUNKSIZE 64
int nelems; /* number of valid Datums in dvalues[] */
Oid element_type; /* data type of the Datums */
int16 typlen; /* needed info about datatype */
bool typbyval;
char typalign;
} ArrayBuildState;
static Datum ExecHashSubPlan(SubPlanState *node,
ExprContext *econtext,
bool *isNull);
@ -37,6 +54,13 @@ static Datum ExecScanSubPlan(SubPlanState *node,
static void buildSubPlanHash(SubPlanState *node);
static bool findPartialMatch(TupleHashTable hashtable, TupleTableSlot *slot);
static bool tupleAllNulls(HeapTuple tuple);
static ArrayBuildState *accumArrayResult(ArrayBuildState *astate,
Datum dvalue, bool disnull,
Oid element_type,
MemoryContext rcontext);
static Datum makeArrayResult(ArrayBuildState *astate,
MemoryContext rcontext);
/* ----------------------------------------------------------------
* ExecSubPlan
@ -200,7 +224,6 @@ ExecScanSubPlan(SubPlanState *node,
PlanState *planstate = node->planstate;
SubLinkType subLinkType = subplan->subLinkType;
bool useOr = subplan->useOr;
bool isExpr = subplan->isExpr;
MemoryContext oldcontext;
TupleTableSlot *slot;
Datum result;
@ -271,11 +294,6 @@ ExecScanSubPlan(SubPlanState *node,
bool rownull = false;
int col = 1;
List *plst;
int numelems;
int elemnum;
Datum dvalue;
Datum *dvalues = NULL;
bool disnull;
if (subLinkType == EXISTS_SUBLINK)
{
@ -313,6 +331,9 @@ ExecScanSubPlan(SubPlanState *node,
if (subLinkType == ARRAY_SUBLINK)
{
Datum dvalue;
bool disnull;
found = true;
/* stash away current value */
dvalue = heap_getattr(tup, 1, tdesc, &disnull);
@ -330,164 +351,99 @@ ExecScanSubPlan(SubPlanState *node,
found = true;
/*
* When isExpr is true, we have either a scalar expression or an
* array. In the former case, this is no different than the !isExpr
* case. In the latter case, iterate over the elements as if they
* were from multiple input tuples.
* For ALL, ANY, and MULTIEXPR sublinks, iterate over combining
* operators for columns of tuple.
*/
if (!isExpr)
numelems = 1;
else
plst = subplan->paramIds;
foreach(lst, node->exprs)
{
Oid expr_typeid = tdesc->attrs[0]->atttypid;
ExprState *exprstate = (ExprState *) lfirst(lst);
int paramid = lfirsti(plst);
ParamExecData *prmdata;
Datum expresult;
bool expnull;
if (expr_typeid != subplan->exprtype)
/*
* Load up the Param representing this column of the sub-select.
*/
prmdata = &(econtext->ecxt_param_exec_vals[paramid]);
Assert(prmdata->execPlan == NULL);
prmdata->value = heap_getattr(tup, col, tdesc,
&(prmdata->isnull));
/*
* Now we can eval the combining operator for this column.
*/
expresult = ExecEvalExprSwitchContext(exprstate, econtext,
&expnull, NULL);
/*
* Combine the result into the row result as appropriate.
*/
if (col == 1)
{
subplan->exprtype = expr_typeid;
subplan->elemtype = get_element_type(expr_typeid);
if (subplan->elemtype != InvalidOid)
get_typlenbyvalalign(subplan->elemtype,
&subplan->elmlen,
&subplan->elmbyval,
&subplan->elmalign);
rowresult = expresult;
rownull = expnull;
}
/* get current value */
dvalue = heap_getattr(tup, 1, tdesc, &disnull);
/* XXX this will need work if/when arrays support NULL elements */
if (!disnull)
else if (useOr)
{
if (subplan->elemtype != InvalidOid)
/* combine within row per OR semantics */
if (expnull)
rownull = true;
else if (DatumGetBool(expresult))
{
ArrayType *v = DatumGetArrayTypeP(dvalue);
deconstruct_array(v, subplan->elemtype, subplan->elmlen,
subplan->elmbyval, subplan->elmalign,
&dvalues, &numelems);
}
else
{
numelems = 1;
dvalues = (Datum *) palloc(numelems * sizeof(Datum));
dvalues[0] = dvalue;
rowresult = BoolGetDatum(true);
rownull = false;
break; /* needn't look at any more columns */
}
}
else
{
numelems = 1;
dvalues = (Datum *) palloc(numelems * sizeof(Datum));
dvalues[0] = (Datum) 0;
/* combine within row per AND semantics */
if (expnull)
rownull = true;
else if (!DatumGetBool(expresult))
{
rowresult = BoolGetDatum(false);
rownull = false;
break; /* needn't look at any more columns */
}
}
plst = lnext(plst);
col++;
}
for (elemnum = 0; elemnum < numelems; elemnum++)
if (subLinkType == ANY_SUBLINK)
{
/*
* For ALL, ANY, and MULTIEXPR sublinks, iterate over combining
* operators for columns of tuple.
*/
col = 1;
plst = subplan->paramIds;
foreach(lst, node->exprs)
/* combine across rows per OR semantics */
if (rownull)
*isNull = true;
else if (DatumGetBool(rowresult))
{
ExprState *exprstate = (ExprState *) lfirst(lst);
int paramid = lfirsti(plst);
ParamExecData *prmdata;
Datum expresult;
bool expnull;
/*
* Load up the Param representing this column of the sub-select.
*/
prmdata = &(econtext->ecxt_param_exec_vals[paramid]);
Assert(prmdata->execPlan == NULL);
if (!isExpr)
prmdata->value = heap_getattr(tup, col, tdesc,
&(prmdata->isnull));
else
{
prmdata->value = dvalues[elemnum];
prmdata->isnull = disnull;
}
/*
* Now we can eval the combining operator for this column.
*/
expresult = ExecEvalExprSwitchContext(exprstate, econtext,
&expnull, NULL);
/*
* Combine the result into the row result as appropriate.
*/
if (col == 1)
{
rowresult = expresult;
rownull = expnull;
}
else if (useOr)
{
/* combine within row per OR semantics */
if (expnull)
rownull = true;
else if (DatumGetBool(expresult))
{
rowresult = BoolGetDatum(true);
rownull = false;
break; /* needn't look at any more columns */
}
}
else
{
/* combine within row per AND semantics */
if (expnull)
rownull = true;
else if (!DatumGetBool(expresult))
{
rowresult = BoolGetDatum(false);
rownull = false;
break; /* needn't look at any more columns */
}
}
plst = lnext(plst);
col++;
result = BoolGetDatum(true);
*isNull = false;
break; /* needn't look at any more rows */
}
if (subLinkType == ANY_SUBLINK)
}
else if (subLinkType == ALL_SUBLINK)
{
/* combine across rows per AND semantics */
if (rownull)
*isNull = true;
else if (!DatumGetBool(rowresult))
{
/* combine across rows per OR semantics */
if (rownull)
*isNull = true;
else if (DatumGetBool(rowresult))
{
result = BoolGetDatum(true);
*isNull = false;
break; /* needn't look at any more rows */
}
}
else if (subLinkType == ALL_SUBLINK)
{
/* combine across rows per AND semantics */
if (rownull)
*isNull = true;
else if (!DatumGetBool(rowresult))
{
result = BoolGetDatum(false);
*isNull = false;
break; /* needn't look at any more rows */
}
}
else
{
/* must be MULTIEXPR_SUBLINK */
result = rowresult;
*isNull = rownull;
result = BoolGetDatum(false);
*isNull = false;
break; /* needn't look at any more rows */
}
}
else
{
/* must be MULTIEXPR_SUBLINK */
result = rowresult;
*isNull = rownull;
}
}
if (!found)
@ -524,7 +480,6 @@ static void
buildSubPlanHash(SubPlanState *node)
{
SubPlan *subplan = (SubPlan *) node->xprstate.expr;
bool isExpr = subplan->isExpr;
PlanState *planstate = node->planstate;
int ncols = length(node->exprs);
ExprContext *innerecontext = node->innerecontext;
@ -532,7 +487,6 @@ buildSubPlanHash(SubPlanState *node)
MemoryContext oldcontext;
int nbuckets;
TupleTableSlot *slot;
TupleTableSlot *arrslot = NULL;
Assert(subplan->subLinkType == ANY_SUBLINK);
Assert(!subplan->useOr);
@ -612,139 +566,43 @@ buildSubPlanHash(SubPlanState *node)
{
HeapTuple tup = slot->val;
TupleDesc tdesc = slot->ttc_tupleDescriptor;
TupleDesc arrtdesc = NULL;
int col = 1;
List *plst;
bool isnew;
int numelems;
int elemnum;
Datum dvalue;
Datum *dvalues = NULL;
bool disnull;
/*
* When isExpr is true, we have either a scalar expression or an
* array. In the former case, this is no different than the !isExpr
* case. In the latter case, iterate over the elements as if they
* were from multiple input tuples.
* Load up the Params representing the raw sub-select outputs,
* then form the projection tuple to store in the hashtable.
*/
if (!isExpr)
numelems = 1;
else
foreach(plst, subplan->paramIds)
{
Oid expr_typeid = tdesc->attrs[0]->atttypid;
if (expr_typeid != subplan->exprtype)
{
subplan->exprtype = expr_typeid;
subplan->elemtype = get_element_type(expr_typeid);
if (subplan->elemtype != InvalidOid)
get_typlenbyvalalign(subplan->elemtype,
&subplan->elmlen,
&subplan->elmbyval,
&subplan->elmalign);
}
/* get current value */
dvalue = heap_getattr(tup, 1, tdesc, &disnull);
if (subplan->elemtype != InvalidOid)
{
TupleTable tupleTable;
ArrayType *v = DatumGetArrayTypeP(dvalue);
arrtdesc = CreateTemplateTupleDesc(1, false);
TupleDescInitEntry(arrtdesc, 1, "elem", subplan->elemtype,
-1, 0, false);
tupleTable = ExecCreateTupleTable(1);
arrslot = ExecAllocTableSlot(tupleTable);
ExecSetSlotDescriptor(arrslot, arrtdesc, true);
/* XXX this will need work if/when arrays support NULL elements */
if (!disnull)
{
deconstruct_array(v, subplan->elemtype, subplan->elmlen,
subplan->elmbyval, subplan->elmalign,
&dvalues, &numelems);
}
else
{
numelems = 1;
dvalues = (Datum *) palloc(numelems * sizeof(Datum));
dvalues[0] = (Datum) 0;
}
}
else
{
numelems = 1;
dvalues = (Datum *) palloc(numelems * sizeof(Datum));
dvalues[0] = dvalue;
}
int paramid = lfirsti(plst);
ParamExecData *prmdata;
prmdata = &(innerecontext->ecxt_param_exec_vals[paramid]);
Assert(prmdata->execPlan == NULL);
prmdata->value = heap_getattr(tup, col, tdesc,
&(prmdata->isnull));
col++;
}
slot = ExecProject(node->projRight, NULL);
tup = slot->val;
for (elemnum = 0; elemnum < numelems; elemnum++)
/*
* If result contains any nulls, store separately or not at all.
* (Since we know the projection tuple has no junk columns, we
* can just look at the overall hasnull info bit, instead of
* groveling through the columns.)
*/
if (HeapTupleNoNulls(tup))
{
int col = 1;
if (!isExpr || subplan->elemtype == InvalidOid)
{
/*
* Load up the Params representing the raw sub-select outputs,
* then form the projection tuple to store in the hashtable.
*/
foreach(plst, subplan->paramIds)
{
int paramid = lfirsti(plst);
ParamExecData *prmdata;
prmdata = &(innerecontext->ecxt_param_exec_vals[paramid]);
Assert(prmdata->execPlan == NULL);
prmdata->value = heap_getattr(tup, col, tdesc,
&(prmdata->isnull));
col++;
}
slot = ExecProject(node->projRight, NULL);
tup = slot->val;
}
else
{
/*
* For array type expressions, we need to build up our own
* tuple and slot
*/
char nullflag;
nullflag = disnull ? 'n' : ' ';
tup = heap_formtuple(arrtdesc, &dvalues[elemnum], &nullflag);
arrslot = ExecStoreTuple(tup, arrslot, InvalidBuffer, true);
}
/*
* If result contains any nulls, store separately or not at all.
* (Since we know the projection tuple has no junk columns, we
* can just look at the overall hasnull info bit, instead of
* groveling through the columns.)
*/
if (HeapTupleNoNulls(tup))
{
if (!isExpr)
(void) LookupTupleHashEntry(node->hashtable, slot, &isnew);
else
(void) LookupTupleHashEntry(node->hashtable, arrslot, &isnew);
node->havehashrows = true;
}
else if (node->hashnulls)
{
if (!isExpr)
(void) LookupTupleHashEntry(node->hashnulls, slot, &isnew);
else
(void) LookupTupleHashEntry(node->hashnulls, arrslot, &isnew);
node->havenullrows = true;
}
(void) LookupTupleHashEntry(node->hashtable, slot, &isnew);
node->havehashrows = true;
}
else if (node->hashnulls)
{
(void) LookupTupleHashEntry(node->hashnulls, slot, &isnew);
node->havenullrows = true;
}
/*
@ -761,8 +619,6 @@ buildSubPlanHash(SubPlanState *node)
* have the potential for a double free attempt.
*/
ExecClearTuple(node->projRight->pi_slot);
if (arrslot)
ExecClearTuple(arrslot);
MemoryContextSwitchTo(oldcontext);
}
@ -1243,3 +1099,101 @@ ExecReScanSetParamPlan(SubPlanState *node, PlanState *parent)
parent->chgParam = bms_add_member(parent->chgParam, paramid);
}
}
/*
* accumArrayResult - accumulate one (more) Datum for an ARRAY_SUBLINK
*
* astate is working state (NULL on first call)
* rcontext is where to keep working state
*/
static ArrayBuildState *
accumArrayResult(ArrayBuildState *astate,
Datum dvalue, bool disnull,
Oid element_type,
MemoryContext rcontext)
{
MemoryContext arr_context,
oldcontext;
if (astate == NULL)
{
/* First time through --- initialize */
/* Make a temporary context to hold all the junk */
arr_context = AllocSetContextCreate(rcontext,
"ARRAY_SUBLINK Result",
ALLOCSET_DEFAULT_MINSIZE,
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);
oldcontext = MemoryContextSwitchTo(arr_context);
astate = (ArrayBuildState *) palloc(sizeof(ArrayBuildState));
astate->mcontext = arr_context;
astate->dvalues = (Datum *)
palloc(ARRAY_ELEMS_CHUNKSIZE * sizeof(Datum));
astate->nelems = 0;
astate->element_type = element_type;
get_typlenbyvalalign(element_type,
&astate->typlen,
&astate->typbyval,
&astate->typalign);
}
else
{
oldcontext = MemoryContextSwitchTo(astate->mcontext);
Assert(astate->element_type == element_type);
/* enlarge dvalues[] if needed */
if ((astate->nelems % ARRAY_ELEMS_CHUNKSIZE) == 0)
astate->dvalues = (Datum *)
repalloc(astate->dvalues,
(astate->nelems + ARRAY_ELEMS_CHUNKSIZE) * sizeof(Datum));
}
if (disnull)
elog(ERROR, "NULL elements not allowed in Arrays");
/* Use datumCopy to ensure pass-by-ref stuff is copied into mcontext */
astate->dvalues[astate->nelems++] =
datumCopy(dvalue, astate->typbyval, astate->typlen);
MemoryContextSwitchTo(oldcontext);
return astate;
}
/*
* makeArrayResult - produce final result of ARRAY_SUBLINK
*
* astate is working state (not NULL)
* rcontext is where to construct result
*/
static Datum
makeArrayResult(ArrayBuildState *astate,
MemoryContext rcontext)
{
ArrayType *result;
int dims[1];
int lbs[1];
MemoryContext oldcontext;
/* Build the final array result in rcontext */
oldcontext = MemoryContextSwitchTo(rcontext);
dims[0] = astate->nelems;
lbs[0] = 1;
result = construct_md_array(astate->dvalues,
1,
dims,
lbs,
astate->element_type,
astate->typlen,
astate->typbyval,
astate->typalign);
MemoryContextSwitchTo(oldcontext);
/* Clean up all the junk */
MemoryContextDelete(astate->mcontext);
return PointerGetDatum(result);
}

10
src/backend/nodes/copyfuncs.c
View File

@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.255 2003/06/25 04:19:24 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.256 2003/06/25 21:30:29 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -728,7 +728,6 @@ _copyAggref(Aggref *from)
COPY_SCALAR_FIELD(agglevelsup);
COPY_SCALAR_FIELD(aggstar);
COPY_SCALAR_FIELD(aggdistinct);
COPY_NODE_FIELD(args);
return newnode;
}
@ -827,7 +826,6 @@ _copySubLink(SubLink *from)
COPY_SCALAR_FIELD(subLinkType);
COPY_SCALAR_FIELD(useOr);
COPY_SCALAR_FIELD(isExpr);
COPY_NODE_FIELD(lefthand);
COPY_NODE_FIELD(operName);
COPY_OIDLIST_FIELD(operOids);
@ -846,12 +844,6 @@ _copySubPlan(SubPlan *from)
COPY_SCALAR_FIELD(subLinkType);
COPY_SCALAR_FIELD(useOr);
COPY_SCALAR_FIELD(isExpr);
COPY_SCALAR_FIELD(exprtype);
COPY_SCALAR_FIELD(elemtype);
COPY_SCALAR_FIELD(elmlen);
COPY_SCALAR_FIELD(elmbyval);
COPY_SCALAR_FIELD(elmalign);
COPY_NODE_FIELD(exprs);
COPY_INTLIST_FIELD(paramIds);
COPY_NODE_FIELD(plan);

10
src/backend/nodes/equalfuncs.c
View File

@ -18,7 +18,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.198 2003/06/25 04:19:24 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.199 2003/06/25 21:30:29 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -205,7 +205,6 @@ _equalAggref(Aggref *a, Aggref *b)
COMPARE_SCALAR_FIELD(agglevelsup);
COMPARE_SCALAR_FIELD(aggstar);
COMPARE_SCALAR_FIELD(aggdistinct);
COMPARE_NODE_FIELD(args);
return true;
}
@ -302,7 +301,6 @@ _equalSubLink(SubLink *a, SubLink *b)
{
COMPARE_SCALAR_FIELD(subLinkType);
COMPARE_SCALAR_FIELD(useOr);
COMPARE_SCALAR_FIELD(isExpr);
COMPARE_NODE_FIELD(lefthand);
COMPARE_NODE_FIELD(operName);
COMPARE_OIDLIST_FIELD(operOids);
@ -316,12 +314,6 @@ _equalSubPlan(SubPlan *a, SubPlan *b)
{
COMPARE_SCALAR_FIELD(subLinkType);
COMPARE_SCALAR_FIELD(useOr);
COMPARE_SCALAR_FIELD(isExpr);
COMPARE_SCALAR_FIELD(exprtype);
COMPARE_SCALAR_FIELD(elemtype);
COMPARE_SCALAR_FIELD(elmlen);
COMPARE_SCALAR_FIELD(elmbyval);
COMPARE_SCALAR_FIELD(elmalign);
COMPARE_NODE_FIELD(exprs);
COMPARE_INTLIST_FIELD(paramIds);
/* should compare plans, but have to settle for comparing plan IDs */

10
src/backend/nodes/outfuncs.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.209 2003/06/24 23:14:43 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.210 2003/06/25 21:30:29 momjian Exp $
*
* NOTES
* Every node type that can appear in stored rules' parsetrees *must*
@ -616,7 +616,6 @@ _outAggref(StringInfo str, Aggref *node)
WRITE_UINT_FIELD(agglevelsup);
WRITE_BOOL_FIELD(aggstar);
WRITE_BOOL_FIELD(aggdistinct);
WRITE_NODE_FIELD(args);
}
static void
@ -702,7 +701,6 @@ _outSubLink(StringInfo str, SubLink *node)
WRITE_ENUM_FIELD(subLinkType, SubLinkType);
WRITE_BOOL_FIELD(useOr);
WRITE_BOOL_FIELD(isExpr);
WRITE_NODE_FIELD(lefthand);
WRITE_NODE_FIELD(operName);
WRITE_OIDLIST_FIELD(operOids);
@ -716,12 +714,6 @@ _outSubPlan(StringInfo str, SubPlan *node)
WRITE_ENUM_FIELD(subLinkType, SubLinkType);
WRITE_BOOL_FIELD(useOr);
WRITE_BOOL_FIELD(isExpr);
WRITE_OID_FIELD(exprtype);
WRITE_OID_FIELD(elemtype);
WRITE_INT_FIELD(elmlen);
WRITE_BOOL_FIELD(elmbyval);
WRITE_CHAR_FIELD(elmalign);
WRITE_NODE_FIELD(exprs);
WRITE_INTLIST_FIELD(paramIds);
WRITE_NODE_FIELD(plan);

4
src/backend/nodes/readfuncs.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.155 2003/06/24 23:14:43 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.156 2003/06/25 21:30:30 momjian Exp $
*
* NOTES
* Path and Plan nodes do not have any readfuncs support, because we
@ -416,7 +416,6 @@ _readAggref(void)
READ_UINT_FIELD(agglevelsup);
READ_BOOL_FIELD(aggstar);
READ_BOOL_FIELD(aggdistinct);
READ_NODE_FIELD(args);
READ_DONE();
}
@ -546,7 +545,6 @@ _readSubLink(void)
READ_ENUM_FIELD(subLinkType, SubLinkType);
READ_BOOL_FIELD(useOr);
READ_BOOL_FIELD(isExpr);
READ_NODE_FIELD(lefthand);
READ_NODE_FIELD(operName);
READ_OIDLIST_FIELD(operOids);

63
src/backend/optimizer/plan/subselect.c
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/subselect.c,v 1.77 2003/06/24 23:14:43 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/subselect.c,v 1.78 2003/06/25 21:30:30 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -83,7 +83,7 @@ typedef struct finalize_primnode_context
static List *convert_sublink_opers(List *lefthand, List *operOids,
List *targetlist, int rtindex,
bool isExpr, List **righthandIds);
List **righthandIds);
static bool subplan_is_hashable(SubLink *slink, SubPlan *node);
static Node *replace_correlation_vars_mutator(Node *node, void *context);
static Node *process_sublinks_mutator(Node *node, bool *isTopQual);
@ -299,12 +299,6 @@ make_subplan(SubLink *slink, List *lefthand, bool isTopQual)
*/
node->subLinkType = slink->subLinkType;
node->useOr = slink->useOr;
node->isExpr = slink->isExpr;
node->exprtype = InvalidOid;
node->elemtype = InvalidOid;
node->elmlen = 0;
node->elmbyval = false;
node->elmalign = '\0';
node->exprs = NIL;
node->paramIds = NIL;
node->useHashTable = false;
@ -380,7 +374,7 @@ make_subplan(SubLink *slink, List *lefthand, bool isTopQual)
exprs = convert_sublink_opers(lefthand,
slink->operOids,
plan->targetlist,
0, node->isExpr,
0,
&node->paramIds);
node->setParam = listCopy(node->paramIds);
PlannerInitPlan = lappend(PlannerInitPlan, node);
@ -463,7 +457,7 @@ make_subplan(SubLink *slink, List *lefthand, bool isTopQual)
node->exprs = convert_sublink_opers(lefthand,
slink->operOids,
plan->targetlist,
0, node->isExpr,
0,
&node->paramIds);
/*
@ -505,7 +499,7 @@ make_subplan(SubLink *slink, List *lefthand, bool isTopQual)
static List *
convert_sublink_opers(List *lefthand, List *operOids,
List *targetlist, int rtindex,
bool isExpr, List **righthandIds)
List **righthandIds)
{
List *result = NIL;
List *lst;
@ -560,38 +554,13 @@ convert_sublink_opers(List *lefthand, List *operOids,
* are not expecting to have to resolve unknown Params, so
* it's okay to pass a null pstate.)
*/
if (!isExpr)
{
result = lappend(result,
make_op_expr(NULL,
tup,
leftop,
rightop,
exprType(leftop),
te->resdom->restype));
}
else
{
Oid exprtype = te->resdom->restype;
Oid elemtype = get_element_type(exprtype);
if (elemtype != InvalidOid)
result = lappend(result,
make_op_expr(NULL,
tup,
leftop,
rightop,
exprType(leftop),
elemtype));
else
result = lappend(result,
make_op_expr(NULL,
tup,
leftop,
rightop,
exprType(leftop),
exprtype));
}
result = lappend(result,
make_op_expr(NULL,
tup,
leftop,
rightop,
exprType(leftop),
te->resdom->restype));
ReleaseSysCache(tup);
@ -702,17 +671,13 @@ convert_IN_to_join(Query *parse, SubLink *sublink)
/*
* The sublink type must be "= ANY" --- that is, an IN operator.
* (We require the operator name to be unqualified, which may be
* overly paranoid, or may not be.) It must not be an Expression
* sublink.
* overly paranoid, or may not be.)
*/
if (sublink->subLinkType != ANY_SUBLINK)
return NULL;
if (length(sublink->operName) != 1 ||
strcmp(strVal(lfirst(sublink->operName)), "=") != 0)
return NULL;
if (sublink->isExpr)
return NULL;
/*
* The sub-select must not refer to any Vars of the parent query.
* (Vars of higher levels should be okay, though.)
@ -765,7 +730,7 @@ convert_IN_to_join(Query *parse, SubLink *sublink)
exprs = convert_sublink_opers(sublink->lefthand,
sublink->operOids,
subselect->targetList,
rtindex, sublink->isExpr,
rtindex,
&ininfo->sub_targetlist);
return (Node *) make_ands_explicit(exprs);
}

24
src/backend/optimizer/util/clauses.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.140 2003/06/24 23:14:43 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.141 2003/06/25 21:30:30 momjian Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -132,28 +132,6 @@ get_rightop(Expr *clause)
return NULL;
}
/*****************************************************************************
* FUNCTION clause functions
*****************************************************************************/
/*
* make_funcclause
* Creates a function clause given its function info and argument list.
*/
Expr *
make_funcclause(Oid funcid, Oid funcresulttype, bool funcretset,
CoercionForm funcformat, List *funcargs)
{
FuncExpr *expr = makeNode(FuncExpr);
expr->funcid = funcid;
expr->funcresulttype = funcresulttype;
expr->funcretset = funcretset;
expr->funcformat = funcformat;
expr->args = funcargs;
return (Expr *) expr;
}
/*****************************************************************************
* NOT clause functions
*****************************************************************************/

39
src/backend/parser/gram.y
View File

@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.420 2003/06/25 04:19:24 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.421 2003/06/25 21:30:30 momjian Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -5505,7 +5505,6 @@ r_expr: row IN_P select_with_parens
{
SubLink *n = makeNode(SubLink);
n->subLinkType = ANY_SUBLINK;
n->isExpr = false;
n->lefthand = $1;
n->operName = makeList1(makeString("="));
n->subselect = $3;
@ -5516,7 +5515,6 @@ r_expr: row IN_P select_with_parens
/* Make an IN node */
SubLink *n = makeNode(SubLink);
n->subLinkType = ANY_SUBLINK;
n->isExpr = false;
n->lefthand = $1;
n->operName = makeList1(makeString("="));
n->subselect = $4;
@ -5528,7 +5526,6 @@ r_expr: row IN_P select_with_parens
{
SubLink *n = makeNode(SubLink);
n->subLinkType = $3;
n->isExpr = false;
n->lefthand = $1;
n->operName = $2;
n->subselect = $4;
@ -5539,7 +5536,6 @@ r_expr: row IN_P select_with_parens
{
SubLink *n = makeNode(SubLink);
n->subLinkType = MULTIEXPR_SUBLINK;
n->isExpr = false;
n->lefthand = $1;
n->operName = $2;
n->subselect = $3;
@ -5923,7 +5919,6 @@ a_expr: c_expr { $$ = $1; }
{
SubLink *n = (SubLink *)$3;
n->subLinkType = ANY_SUBLINK;
n->isExpr = false;
n->lefthand = makeList1($1);
n->operName = makeList1(makeString("="));
$$ = (Node *)n;
@ -5951,7 +5946,6 @@ a_expr: c_expr { $$ = $1; }
{
/* Make an IN node */
SubLink *n = (SubLink *)$4;
n->isExpr = false;
n->subLinkType = ANY_SUBLINK;
n->lefthand = makeList1($1);
n->operName = makeList1(makeString("="));
@ -5978,38 +5972,11 @@ a_expr: c_expr { $$ = $1; }
{
SubLink *n = makeNode(SubLink);
n->subLinkType = $3;
n->isExpr = false;
n->lefthand = makeList1($1);
n->operName = $2;
n->subselect = $4;
$$ = (Node *)n;
}
| a_expr qual_all_Op sub_type '(' a_expr ')' %prec Op
{
SubLink *n = makeNode(SubLink);
SelectStmt *s = makeNode(SelectStmt);
ResTarget *r = makeNode(ResTarget);
r->name = NULL;
r->indirection = NIL;
r->val = (Node *)$5;
s->distinctClause = NIL;
s->targetList = makeList1(r);
s->into = NULL;
s->intoColNames = NIL;
s->fromClause = NIL;
s->whereClause = NULL;
s->groupClause = NIL;
s->havingClause = NULL;
n->subLinkType = $3;
n->isExpr = true;
n->lefthand = makeList1($1);
n->operName = $2;
n->subselect = (Node *) s;
$$ = (Node *)n;
}
| UNIQUE select_with_parens %prec Op
{
/* Not sure how to get rid of the parentheses
@ -6586,7 +6553,6 @@ c_expr: columnref { $$ = (Node *) $1; }
{
SubLink *n = makeNode(SubLink);
n->subLinkType = EXPR_SUBLINK;
n->isExpr = false;
n->lefthand = NIL;
n->operName = NIL;
n->subselect = $1;
@ -6596,7 +6562,6 @@ c_expr: columnref { $$ = (Node *) $1; }
{
SubLink *n = makeNode(SubLink);
n->subLinkType = EXISTS_SUBLINK;
n->isExpr = false;
n->lefthand = NIL;
n->operName = NIL;
n->subselect = $2;
@ -6606,7 +6571,6 @@ c_expr: columnref { $$ = (Node *) $1; }
{
SubLink *n = makeNode(SubLink);
n->subLinkType = ARRAY_SUBLINK;
n->isExpr = false;
n->lefthand = NIL;
n->operName = NIL;
n->subselect = $2;
@ -6781,7 +6745,6 @@ trim_list: a_expr FROM expr_list { $$ = lappend($3, $1); }
in_expr: select_with_parens
{
SubLink *n = makeNode(SubLink);
n->isExpr = false;
n->subselect = $1;
/* other fields will be filled later */
$$ = (Node *)n;

19
src/backend/parser/parse_coerce.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_coerce.c,v 2.99 2003/06/25 04:32:03 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_coerce.c,v 2.100 2003/06/25 21:30:31 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -859,11 +859,7 @@ enforce_generic_type_consistency(Oid *actual_arg_types,
/* Get the element type based on the array type, if we have one */
if (OidIsValid(array_typeid))
{
if (array_typeid != ANYARRAYOID)
array_typelem = get_element_type(array_typeid);
else
array_typelem = ANYELEMENTOID;
array_typelem = get_element_type(array_typeid);
if (!OidIsValid(array_typelem))
elog(ERROR, "Argument declared ANYARRAY is not an array: %s",
format_type_be(array_typeid));
@ -923,11 +919,7 @@ enforce_generic_type_consistency(Oid *actual_arg_types,
{
if (!OidIsValid(array_typeid))
{
if (elem_typeid != ANYELEMENTOID)
array_typeid = get_array_type(elem_typeid);
else
array_typeid = ANYARRAYOID;
array_typeid = get_array_type(elem_typeid);
if (!OidIsValid(array_typeid))
elog(ERROR, "Cannot find array type for datatype %s",
format_type_be(elem_typeid));
@ -1178,11 +1170,6 @@ IsBinaryCoercible(Oid srctype, Oid targettype)
if (srctype == targettype)
return true;
/* Last of the fast-paths: check for matching polymorphic arrays */
if (targettype == ANYARRAYOID)
if (get_element_type(srctype) != InvalidOid)
return true;
/* Else look in pg_cast */
tuple = SearchSysCache(CASTSOURCETARGET,
ObjectIdGetDatum(srctype),

34
src/backend/parser/parse_expr.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.149 2003/06/24 23:14:45 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.150 2003/06/25 21:30:31 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -436,7 +436,6 @@ transformExpr(ParseState *pstate, Node *expr)
sublink->operName = NIL;
sublink->operOids = NIL;
sublink->useOr = FALSE;
sublink->isExpr = FALSE;
}
else if (sublink->subLinkType == EXPR_SUBLINK ||
sublink->subLinkType == ARRAY_SUBLINK)
@ -464,7 +463,6 @@ transformExpr(ParseState *pstate, Node *expr)
sublink->operName = NIL;
sublink->operOids = NIL;
sublink->useOr = FALSE;
sublink->isExpr = FALSE;
}
else
{
@ -540,30 +538,10 @@ transformExpr(ParseState *pstate, Node *expr)
* here, because make_subplan() will insert type
* coercion calls if needed.
*/
if (!sublink->isExpr)
{
optup = oper(op,
exprType(lexpr),
exprType((Node *) tent->expr),
false);
}
else
{
Oid exprtype = exprType((Node *) tent->expr);
Oid elemtype = get_element_type(exprtype);
if (elemtype != InvalidOid)
optup = oper(op,
exprType(lexpr),
elemtype,
false);
else
optup = oper(op,
exprType(lexpr),
exprtype,
false);
}
optup = oper(op,
exprType(lexpr),
exprType((Node *) tent->expr),
false);
opform = (Form_pg_operator) GETSTRUCT(optup);
if (opform->oprresult != BOOLOID)
@ -765,7 +743,7 @@ transformExpr(ParseState *pstate, Node *expr)
ArrayExpr *e = (ArrayExpr *) lfirst(element);
if (!IsA(e, ArrayExpr))
elog(ERROR, "Multidimensional ARRAY[] must be built from nested array expressions");
elog(ERROR, "Multi-dimensional ARRAY[] must be built from nested array expressions");
if (ndims == 0)
ndims = e->ndims;
else if (e->ndims != ndims)

3
src/backend/parser/parse_func.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.151 2003/06/25 20:07:39 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.152 2003/06/25 21:30:31 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -336,7 +336,6 @@ ParseFuncOrColumn(ParseState *pstate, List *funcname, List *fargs,
aggref->target = lfirst(fargs);
aggref->aggstar = agg_star;
aggref->aggdistinct = agg_distinct;
aggref->args = fargs;
/* parse_agg.c does additional aggregate-specific processing */
transformAggregateCall(pstate, aggref);

71
src/backend/parser/parse_oper.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_oper.c,v 1.65 2003/06/24 23:14:45 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_oper.c,v 1.66 2003/06/25 21:30:32 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -137,33 +137,6 @@ Operator
equality_oper(Oid argtype, bool noError)
{
Operator optup;
Oid elem_type = get_element_type(argtype);
if (OidIsValid(elem_type))
{
bool found = false;
/*
* If the datatype is an array, look for an "=" operator for the
* element datatype. We require it to be an exact or binary-compatible
* match, since most callers are not prepared to cope with adding any
* run-time type coercion steps.
*/
optup = equality_oper(elem_type, true);
if (optup != NULL)
{
found = true;
ReleaseSysCache(optup);
}
if (!found)
{
if (!noError)
elog(ERROR, "Unable to identify an equality operator for " \
"array type's element type %s",
format_type_be(elem_type));
return NULL;
}
}
/*
* Look for an "=" operator for the datatype. We require it to be
@ -202,33 +175,6 @@ Operator
ordering_oper(Oid argtype, bool noError)
{
Operator optup;
Oid elem_type = get_element_type(argtype);
if (OidIsValid(elem_type))
{
bool found = false;
/*
* If the datatype is an array, find the array element type's equality
* operator, and use its lsortop (it *must* be mergejoinable). We use
* this definition because for sorting and grouping purposes, it's
* important that the equality and ordering operators are consistent.
*/
optup = ordering_oper(elem_type, true);
if (optup != NULL)
{
found = true;
ReleaseSysCache(optup);
}
if (!found)
{
if (!noError)
elog(ERROR, "Unable to identify an ordering operator for " \
"array type's element type %s",
format_type_be(elem_type));
return NULL;
}
}
/*
* Find the type's equality operator, and use its lsortop (it *must*
@ -274,21 +220,6 @@ equality_oper_funcid(Oid argtype)
return result;
}
/*
* ordering_oper_funcid - convenience routine for oprfuncid(ordering_oper())
*/
Oid
ordering_oper_funcid(Oid argtype)
{
Operator optup;
Oid result;
optup = ordering_oper(argtype, false);
result = oprfuncid(optup);
ReleaseSysCache(optup);
return result;
}
/*
* ordering_oper_opid - convenience routine for oprid(ordering_oper())
*

11
src/backend/utils/adt/acl.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/acl.c,v 1.89 2003/06/24 23:14:45 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/acl.c,v 1.90 2003/06/25 21:30:32 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -427,15 +427,6 @@ aclitemeq(const AclItem *a1, const AclItem *a2)
a1->ai_grantor == a2->ai_grantor;
}
/*
* user-facing version of aclitemeq() for use as the
* aclitem equality operator
*/
Datum
aclitem_eq(PG_FUNCTION_ARGS)
{
PG_RETURN_BOOL(aclitemeq(PG_GETARG_ACLITEM_P(0), PG_GETARG_ACLITEM_P(1)));
}
/*
* acldefault() --- create an ACL describing default access permissions

291
src/backend/utils/adt/array_userfuncs.c
View File

@ -6,7 +6,7 @@
* Copyright (c) 2003, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/array_userfuncs.c,v 1.2 2003/06/24 23:14:45 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/array_userfuncs.c,v 1.3 2003/06/25 21:30:32 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -18,6 +18,35 @@
#include "utils/lsyscache.h"
#include "utils/syscache.h"
/*-----------------------------------------------------------------------------
* singleton_array :
* Form a multi-dimensional array given one starting element.
*
* - first argument is the datum with which to build the array
* - second argument is the number of dimensions the array should have;
* defaults to 1 if no second argument is provided
*----------------------------------------------------------------------------
*/
Datum
singleton_array(PG_FUNCTION_ARGS)
{
Oid elem_type = get_fn_expr_argtype(fcinfo, 0);
int ndims;
if (elem_type == InvalidOid)
elog(ERROR, "Cannot determine input datatype");
if (PG_NARGS() == 2)
ndims = PG_GETARG_INT32(1);
else
ndims = 1;
PG_RETURN_ARRAYTYPE_P(create_singleton_array(elem_type,
PG_GETARG_DATUM(0),
ndims));
}
/*-----------------------------------------------------------------------------
* array_push :
* push an element onto either end of a one-dimensional array
@ -41,7 +70,6 @@ array_push(PG_FUNCTION_ARGS)
Oid arg1_typeid = get_fn_expr_argtype(fcinfo, 1);
Oid arg0_elemid;
Oid arg1_elemid;
ArrayMetaState *my_extra;
if (arg0_typeid == InvalidOid || arg1_typeid == InvalidOid)
elog(ERROR, "array_push: cannot determine input data types");
@ -67,61 +95,28 @@ array_push(PG_FUNCTION_ARGS)
PG_RETURN_NULL(); /* keep compiler quiet */
}
if (ARR_NDIM(v) == 1)
/* Sanity check: do we have a one-dimensional array */
if (ARR_NDIM(v) != 1)
elog(ERROR, "Arrays greater than one-dimension are not supported");
lb = ARR_LBOUND(v);
dimv = ARR_DIMS(v);
if (arg0_elemid != InvalidOid)
{
lb = ARR_LBOUND(v);
dimv = ARR_DIMS(v);
if (arg0_elemid != InvalidOid)
{
/* append newelem */
int ub = dimv[0] + lb[0] - 1;
indx = ub + 1;
}
else
{
/* prepend newelem */
indx = lb[0] - 1;
}
}
else if (ARR_NDIM(v) == 0)
indx = 1;
else
elog(ERROR, "only empty and one-dimensional arrays are supported");
/*
* We arrange to look up info about element type only once per series
* of calls, assuming the element type doesn't change underneath us.
*/
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
if (my_extra == NULL)
{
fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(ArrayMetaState));
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
/* Get info about element type */
get_typlenbyvalalign(element_type, &typlen, &typbyval, &typalign);
my_extra->element_type = element_type;
my_extra->typlen = typlen;
my_extra->typbyval = typbyval;
my_extra->typalign = typalign;
/* append newelem */
int ub = dimv[0] + lb[0] - 1;
indx = ub + 1;
}
else
{
typlen = my_extra->typlen;
typbyval = my_extra->typbyval;
typalign = my_extra->typalign;
/* prepend newelem */
indx = lb[0] - 1;
}
result = array_set(v, 1, &indx, newelem, -1, typlen, typbyval,
typalign, &isNull);
get_typlenbyvalalign(element_type, &typlen, &typbyval, &typalign);
result = array_set(v, 1, &indx, newelem, -1,
typlen, typbyval, typalign, &isNull);
PG_RETURN_ARRAYTYPE_P(result);
}
@ -150,28 +145,13 @@ array_cat(PG_FUNCTION_ARGS)
/*
* We must have one of the following combinations of inputs:
* 1) one empty array, and one non-empty array
* 2) both arrays empty
* 3) two arrays with ndims1 == ndims2
* 4) ndims1 == ndims2 - 1
* 5) ndims1 == ndims2 + 1
* 1) two arrays with ndims1 == ndims2
* 2) ndims1 == ndims2 - 1
* 3) ndims1 == ndims2 + 1
*/
ndims1 = ARR_NDIM(v1);
ndims2 = ARR_NDIM(v2);
/*
* short circuit - if one input array is empty, and the other is not,
* we return the non-empty one as the result
*
* if both are empty, return the first one
*/
if (ndims1 == 0 && ndims2 > 0)
PG_RETURN_ARRAYTYPE_P(v2);
if (ndims2 == 0)
PG_RETURN_ARRAYTYPE_P(v1);
/* the rest fall into combo 2, 3, or 4 */
if (ndims1 != ndims2 && ndims1 != ndims2 - 1 && ndims1 != ndims2 + 1)
elog(ERROR, "Cannot concatenate incompatible arrays of %d and "
"%d dimensions", ndims1, ndims2);
@ -286,15 +266,147 @@ array_cat(PG_FUNCTION_ARGS)
PG_RETURN_ARRAYTYPE_P(result);
}
/*----------------------------------------------------------------------------
* array_accum :
* accumulator to build a 1-D array from input values -- this can be used
* to create custom aggregates.
*
* This function is not marked strict, so we have to be careful about nulls.
*----------------------------------------------------------------------------
*/
Datum
array_accum(PG_FUNCTION_ARGS)
{
/* return NULL if both arguments are NULL */
if (PG_ARGISNULL(0) && PG_ARGISNULL(1))
PG_RETURN_NULL();
/* create a new 1-D array from the new element if the array is NULL */
if (PG_ARGISNULL(0))
{
Oid tgt_type = get_fn_expr_rettype(fcinfo);
Oid tgt_elem_type;
if (tgt_type == InvalidOid)
elog(ERROR, "Cannot determine target array type");
tgt_elem_type = get_element_type(tgt_type);
if (tgt_elem_type == InvalidOid)
elog(ERROR, "Target type is not an array");
PG_RETURN_ARRAYTYPE_P(create_singleton_array(tgt_elem_type,
PG_GETARG_DATUM(1),
1));
}
/* return the array if the new element is NULL */
if (PG_ARGISNULL(1))
PG_RETURN_ARRAYTYPE_P(PG_GETARG_ARRAYTYPE_P_COPY(0));
/*
* Otherwise this is equivalent to array_push. We hack the call a little
* so that array_push can see the fn_expr information.
*/
return array_push(fcinfo);
}
/*-----------------------------------------------------------------------------
* array_assign :
* assign an element of an array to a new value and return the
* redefined array
*----------------------------------------------------------------------------
*/
Datum
array_assign(PG_FUNCTION_ARGS)
{
ArrayType *v;
int idx_to_chg;
Datum newelem;
int *dimv,
*lb, ub;
ArrayType *result;
bool isNull;
Oid element_type;
int16 typlen;
bool typbyval;
char typalign;
v = PG_GETARG_ARRAYTYPE_P(0);
idx_to_chg = PG_GETARG_INT32(1);
newelem = PG_GETARG_DATUM(2);
/* Sanity check: do we have a one-dimensional array */
if (ARR_NDIM(v) != 1)
elog(ERROR, "Arrays greater than one-dimension are not supported");
lb = ARR_LBOUND(v);
dimv = ARR_DIMS(v);
ub = dimv[0] + lb[0] - 1;
if (idx_to_chg < lb[0] || idx_to_chg > ub)
elog(ERROR, "Cannot alter nonexistent array element: %d", idx_to_chg);
element_type = ARR_ELEMTYPE(v);
/* Sanity check: do we have a non-zero element type */
if (element_type == 0)
elog(ERROR, "Invalid array element type: %u", element_type);
get_typlenbyvalalign(element_type, &typlen, &typbyval, &typalign);
result = array_set(v, 1, &idx_to_chg, newelem, -1,
typlen, typbyval, typalign, &isNull);
PG_RETURN_ARRAYTYPE_P(result);
}
/*-----------------------------------------------------------------------------
* array_subscript :
* return specific element of an array
*----------------------------------------------------------------------------
*/
Datum
array_subscript(PG_FUNCTION_ARGS)
{
ArrayType *v;
int idx;
int *dimv,
*lb, ub;
Datum result;
bool isNull;
Oid element_type;
int16 typlen;
bool typbyval;
char typalign;
v = PG_GETARG_ARRAYTYPE_P(0);
idx = PG_GETARG_INT32(1);
/* Sanity check: do we have a one-dimensional array */
if (ARR_NDIM(v) != 1)
elog(ERROR, "Arrays greater than one-dimension are not supported");
lb = ARR_LBOUND(v);
dimv = ARR_DIMS(v);
ub = dimv[0] + lb[0] - 1;
if (idx < lb[0] || idx > ub)
elog(ERROR, "Cannot return nonexistent array element: %d", idx);
element_type = ARR_ELEMTYPE(v);
/* Sanity check: do we have a non-zero element type */
if (element_type == 0)
elog(ERROR, "Invalid array element type: %u", element_type);
get_typlenbyvalalign(element_type, &typlen, &typbyval, &typalign);
result = array_ref(v, 1, &idx, -1, typlen, typbyval, typalign, &isNull);
PG_RETURN_DATUM(result);
}
/*
* used by text_to_array() in varlena.c
* actually does the work for singleton_array(), and array_accum() if it is
* given a null input array.
*/
ArrayType *
create_singleton_array(FunctionCallInfo fcinfo,
Oid element_type,
Datum element,
int ndims)
create_singleton_array(Oid element_type, Datum element, int ndims)
{
Datum dvalues[1];
int16 typlen;
@ -303,7 +415,6 @@ create_singleton_array(FunctionCallInfo fcinfo,
int dims[MAXDIM];
int lbs[MAXDIM];
int i;
ArrayMetaState *my_extra;
if (element_type == 0)
elog(ERROR, "Invalid array element type: %u", element_type);
@ -318,35 +429,7 @@ create_singleton_array(FunctionCallInfo fcinfo,
lbs[i] = 1;
}
/*
* We arrange to look up info about element type only once per series
* of calls, assuming the element type doesn't change underneath us.
*/
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
if (my_extra == NULL)
{
fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(ArrayMetaState));
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
/* Get info about element type */
get_typlenbyvalalign(element_type, &typlen, &typbyval, &typalign);
my_extra->element_type = element_type;
my_extra->typlen = typlen;
my_extra->typbyval = typbyval;
my_extra->typalign = typalign;
}
else
{
typlen = my_extra->typlen;
typbyval = my_extra->typbyval;
typalign = my_extra->typalign;
}
get_typlenbyvalalign(element_type, &typlen, &typbyval, &typalign);
return construct_md_array(dvalues, ndims, dims, lbs, element_type,
typlen, typbyval, typalign);

824
src/backend/utils/adt/arrayfuncs.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.90 2003/06/24 23:14:45 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/arrayfuncs.c,v 1.91 2003/06/25 21:30:32 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -21,10 +21,8 @@
#include "catalog/pg_type.h"
#include "libpq/pqformat.h"
#include "parser/parse_coerce.h"
#include "parser/parse_oper.h"
#include "utils/array.h"
#include "utils/builtins.h"
#include "utils/datum.h"
#include "utils/memutils.h"
#include "utils/lsyscache.h"
#include "utils/syscache.h"
@ -72,6 +70,16 @@
#define RETURN_NULL(type) do { *isNull = true; return (type) 0; } while (0)
/* I/O function selector for system_cache_lookup */
typedef enum IOFuncSelector
{
IOFunc_input,
IOFunc_output,
IOFunc_receive,
IOFunc_send
} IOFuncSelector;
static int ArrayCount(char *str, int *dim, char typdelim);
static Datum *ReadArrayStr(char *arrayStr, int nitems, int ndim, int *dim,
FmgrInfo *inputproc, Oid typelem, int32 typmod,
@ -85,6 +93,10 @@ static Datum *ReadArrayBinary(StringInfo buf, int nitems,
static void CopyArrayEls(char *p, Datum *values, int nitems,
int typlen, bool typbyval, char typalign,
bool freedata);
static void system_cache_lookup(Oid element_type, IOFuncSelector which_func,
int *typlen, bool *typbyval,
char *typdelim, Oid *typelem,
Oid *proc, char *typalign);
static Datum ArrayCast(char *value, bool byval, int len);
static int ArrayCastAndSet(Datum src,
int typlen, bool typbyval, char typalign,
@ -107,7 +119,7 @@ static void array_insert_slice(int ndim, int *dim, int *lb,
char *destPtr,
int *st, int *endp, char *srcPtr,
int typlen, bool typbyval, char typalign);
static int array_cmp(FunctionCallInfo fcinfo);
/*---------------------------------------------------------------------
* array_in :
@ -142,49 +154,12 @@ array_in(PG_FUNCTION_ARGS)
dim[MAXDIM],
lBound[MAXDIM];
char typalign;
ArrayMetaState *my_extra;
/*
* We arrange to look up info about element type, including its input
* conversion proc only once per series of calls, assuming the element
* type doesn't change underneath us.
*/
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
if (my_extra == NULL)
{
fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(ArrayMetaState));
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
/* Get info about element type, including its input conversion proc */
get_type_metadata(element_type, IOFunc_input,
&typlen, &typbyval, &typdelim,
&typelem, &typinput, &typalign);
fmgr_info(typinput, &inputproc);
my_extra->element_type = element_type;
my_extra->typlen = typlen;
my_extra->typbyval = typbyval;
my_extra->typdelim = typdelim;
my_extra->typelem = typelem;
my_extra->typiofunc = typinput;
my_extra->typalign = typalign;
my_extra->proc = inputproc;
}
else
{
typlen = my_extra->typlen;
typbyval = my_extra->typbyval;
typdelim = my_extra->typdelim;
typelem = my_extra->typelem;
typinput = my_extra->typiofunc;
typalign = my_extra->typalign;
inputproc = my_extra->proc;
}
/* Get info about element type, including its input conversion proc */
system_cache_lookup(element_type, IOFunc_input,
&typlen, &typbyval, &typdelim,
&typelem, &typinput, &typalign);
fmgr_info(typinput, &inputproc);
/* Make a modifiable copy of the input */
/* XXX why are we allocating an extra 2 bytes here? */
@ -661,51 +636,12 @@ array_out(PG_FUNCTION_ARGS)
indx[MAXDIM];
int ndim,
*dim;
ArrayMetaState *my_extra;
element_type = ARR_ELEMTYPE(v);
/*
* We arrange to look up info about element type, including its input
* conversion proc only once per series of calls, assuming the element
* type doesn't change underneath us.
*/
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
if (my_extra == NULL)
{
fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(ArrayMetaState));
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
/* Get info about element type, including its output conversion proc */
get_type_metadata(element_type, IOFunc_output,
&typlen, &typbyval, &typdelim,
&typelem, &typoutput, &typalign);
fmgr_info(typoutput, &outputproc);
my_extra->element_type = element_type;
my_extra->typlen = typlen;
my_extra->typbyval = typbyval;
my_extra->typdelim = typdelim;
my_extra->typelem = typelem;
my_extra->typiofunc = typoutput;
my_extra->typalign = typalign;
my_extra->proc = outputproc;
}
else
{
typlen = my_extra->typlen;
typbyval = my_extra->typbyval;
typdelim = my_extra->typdelim;
typelem = my_extra->typelem;
typoutput = my_extra->typiofunc;
typalign = my_extra->typalign;
outputproc = my_extra->proc;
}
system_cache_lookup(element_type, IOFunc_output,
&typlen, &typbyval, &typdelim,
&typelem, &typoutput, &typalign);
fmgr_info(typoutput, &outputproc);
ndim = ARR_NDIM(v);
dim = ARR_DIMS(v);
@ -864,7 +800,6 @@ array_recv(PG_FUNCTION_ARGS)
dim[MAXDIM],
lBound[MAXDIM];
char typalign;
ArrayMetaState *my_extra;
/* Get the array header information */
ndim = pq_getmsgint(buf, 4);
@ -896,50 +831,14 @@ array_recv(PG_FUNCTION_ARGS)
PG_RETURN_ARRAYTYPE_P(retval);
}
/*
* We arrange to look up info about element type, including its receive
* conversion proc only once per series of calls, assuming the element
* type doesn't change underneath us.
*/
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
if (my_extra == NULL)
{
fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(ArrayMetaState));
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
/* Get info about element type, including its receive conversion proc */
get_type_metadata(element_type, IOFunc_receive,
&typlen, &typbyval, &typdelim,
&typelem, &typreceive, &typalign);
if (!OidIsValid(typreceive))
elog(ERROR, "No binary input function available for type %s",
format_type_be(element_type));
fmgr_info(typreceive, &receiveproc);
my_extra->element_type = element_type;
my_extra->typlen = typlen;
my_extra->typbyval = typbyval;
my_extra->typdelim = typdelim;
my_extra->typelem = typelem;
my_extra->typiofunc = typreceive;
my_extra->typalign = typalign;
my_extra->proc = receiveproc;
}
else
{
typlen = my_extra->typlen;
typbyval = my_extra->typbyval;
typdelim = my_extra->typdelim;
typelem = my_extra->typelem;
typreceive = my_extra->typiofunc;
typalign = my_extra->typalign;
receiveproc = my_extra->proc;
}
/* Get info about element type, including its receive conversion proc */
system_cache_lookup(element_type, IOFunc_receive,
&typlen, &typbyval, &typdelim,
&typelem, &typreceive, &typalign);
if (!OidIsValid(typreceive))
elog(ERROR, "No binary input function available for type %s",
format_type_be(element_type));
fmgr_info(typreceive, &receiveproc);
dataPtr = ReadArrayBinary(buf, nitems, &receiveproc, typelem,
typlen, typbyval, typalign,
@ -1077,54 +976,15 @@ array_send(PG_FUNCTION_ARGS)
int ndim,
*dim;
StringInfoData buf;
ArrayMetaState *my_extra;
/* Get information about the element type and the array dimensions */
element_type = ARR_ELEMTYPE(v);
/*
* We arrange to look up info about element type, including its send
* proc only once per series of calls, assuming the element
* type doesn't change underneath us.
*/
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
if (my_extra == NULL)
{
fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(ArrayMetaState));
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
/* Get info about element type, including its send proc */
get_type_metadata(element_type, IOFunc_send, &typlen, &typbyval,
&typdelim, &typelem, &typsend, &typalign);
if (!OidIsValid(typsend))
elog(ERROR, "No binary output function available for type %s",
format_type_be(element_type));
fmgr_info(typsend, &sendproc);
my_extra->element_type = element_type;
my_extra->typlen = typlen;
my_extra->typbyval = typbyval;
my_extra->typdelim = typdelim;
my_extra->typelem = typelem;
my_extra->typiofunc = typsend;
my_extra->typalign = typalign;
my_extra->proc = sendproc;
}
else
{
typlen = my_extra->typlen;
typbyval = my_extra->typbyval;
typdelim = my_extra->typdelim;
typelem = my_extra->typelem;
typsend = my_extra->typiofunc;
typalign = my_extra->typalign;
sendproc = my_extra->proc;
}
system_cache_lookup(element_type, IOFunc_send, &typlen, &typbyval,
&typdelim, &typelem, &typsend, &typalign);
if (!OidIsValid(typsend))
elog(ERROR, "No binary output function available for type %s",
format_type_be(element_type));
fmgr_info(typsend, &sendproc);
ndim = ARR_NDIM(v);
dim = ARR_DIMS(v);
@ -1616,26 +1476,6 @@ array_set(ArrayType *array,
array = DatumGetArrayTypeP(PointerGetDatum(array));
ndim = ARR_NDIM(array);
/*
* if number of dims is zero, i.e. an empty array, create an array
* with nSubscripts dimensions, and set the lower bounds to the supplied
* subscripts
*/
if (ndim == 0)
{
Oid elmtype = ARR_ELEMTYPE(array);
for (i = 0; i < nSubscripts; i++)
{
dim[i] = 1;
lb[i] = indx[i];
}
return construct_md_array(&dataValue, nSubscripts, dim, lb, elmtype,
elmlen, elmbyval, elmalign);
}
if (ndim != nSubscripts || ndim <= 0 || ndim > MAXDIM)
elog(ERROR, "Invalid array subscripts");
@ -1792,31 +1632,6 @@ array_set_slice(ArrayType *array,
/* note: we assume srcArray contains no toasted elements */
ndim = ARR_NDIM(array);
/*
* if number of dims is zero, i.e. an empty array, create an array
* with nSubscripts dimensions, and set the upper and lower bounds
* to the supplied subscripts
*/
if (ndim == 0)
{
Datum *dvalues;
int nelems;
Oid elmtype = ARR_ELEMTYPE(array);
deconstruct_array(srcArray, elmtype, elmlen, elmbyval, elmalign,
&dvalues, &nelems);
for (i = 0; i < nSubscripts; i++)
{
dim[i] = 1 + upperIndx[i] - lowerIndx[i];
lb[i] = lowerIndx[i];
}
return construct_md_array(dvalues, nSubscripts, dim, lb, elmtype,
elmlen, elmbyval, elmalign);
}
if (ndim < nSubscripts || ndim <= 0 || ndim > MAXDIM)
elog(ERROR, "Invalid array subscripts");
@ -1996,13 +1811,6 @@ array_map(FunctionCallInfo fcinfo, Oid inpType, Oid retType)
Oid typelem;
Oid proc;
char *s;
typedef struct {
ArrayMetaState *inp_extra;
ArrayMetaState *ret_extra;
} am_extra;
am_extra *my_extra;
ArrayMetaState *inp_extra;
ArrayMetaState *ret_extra;
/* Get input array */
if (fcinfo->nargs < 1)
@ -2021,81 +1829,11 @@ array_map(FunctionCallInfo fcinfo, Oid inpType, Oid retType)
if (nitems <= 0)
PG_RETURN_ARRAYTYPE_P(v);
/*
* We arrange to look up info about input and return element types only
* once per series of calls, assuming the element type doesn't change
* underneath us.
*/
my_extra = (am_extra *) fcinfo->flinfo->fn_extra;
if (my_extra == NULL)
{
fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(am_extra));
my_extra = (am_extra *) fcinfo->flinfo->fn_extra;
my_extra->inp_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(ArrayMetaState));
inp_extra = my_extra->inp_extra;
inp_extra->element_type = InvalidOid;
my_extra->ret_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(ArrayMetaState));
ret_extra = my_extra->ret_extra;
ret_extra->element_type = InvalidOid;
}
else
{
inp_extra = my_extra->inp_extra;
ret_extra = my_extra->ret_extra;
}
if (inp_extra->element_type != inpType)
{
/* Lookup source and result types. Unneeded variables are reused. */
get_type_metadata(inpType, IOFunc_input, &inp_typlen, &inp_typbyval,
&typdelim, &typelem, &proc, &inp_typalign);
inp_extra->element_type = inpType;
inp_extra->typlen = inp_typlen;
inp_extra->typbyval = inp_typbyval;
inp_extra->typdelim = typdelim;
inp_extra->typelem = typelem;
inp_extra->typiofunc = proc;
inp_extra->typalign = inp_typalign;
}
else
{
inp_typlen = inp_extra->typlen;
inp_typbyval = inp_extra->typbyval;
typdelim = inp_extra->typdelim;
typelem = inp_extra->typelem;
proc = inp_extra->typiofunc;
inp_typalign = inp_extra->typalign;
}
if (ret_extra->element_type != retType)
{
/* Lookup source and result types. Unneeded variables are reused. */
get_type_metadata(retType, IOFunc_input, &typlen, &typbyval,
&typdelim, &typelem, &proc, &typalign);
ret_extra->element_type = retType;
ret_extra->typlen = typlen;
ret_extra->typbyval = typbyval;
ret_extra->typdelim = typdelim;
ret_extra->typelem = typelem;
ret_extra->typiofunc = proc;
ret_extra->typalign = typalign;
}
else
{
typlen = ret_extra->typlen;
typbyval = ret_extra->typbyval;
typdelim = ret_extra->typdelim;
typelem = ret_extra->typelem;
proc = ret_extra->typiofunc;
typalign = ret_extra->typalign;
}
/* Lookup source and result types. Unneeded variables are reused. */
system_cache_lookup(inpType, IOFunc_input, &inp_typlen, &inp_typbyval,
&typdelim, &typelem, &proc, &inp_typalign);
system_cache_lookup(retType, IOFunc_input, &typlen, &typbyval,
&typdelim, &typelem, &proc, &typalign);
/* Allocate temporary array for new values */
values = (Datum *) palloc(nitems * sizeof(Datum));
@ -2311,6 +2049,8 @@ deconstruct_array(ArrayType *array,
* compares two arrays for equality
* result :
* returns true if the arrays are equal, false otherwise.
*
* XXX bitwise equality is pretty bogus ...
*-----------------------------------------------------------------------------
*/
Datum
@ -2318,118 +2058,12 @@ array_eq(PG_FUNCTION_ARGS)
{
ArrayType *array1 = PG_GETARG_ARRAYTYPE_P(0);
ArrayType *array2 = PG_GETARG_ARRAYTYPE_P(1);
char *p1 = (char *) ARR_DATA_PTR(array1);
char *p2 = (char *) ARR_DATA_PTR(array2);
int ndims1 = ARR_NDIM(array1);
int ndims2 = ARR_NDIM(array2);
int *dims1 = ARR_DIMS(array1);
int *dims2 = ARR_DIMS(array2);
int nitems1 = ArrayGetNItems(ndims1, dims1);
int nitems2 = ArrayGetNItems(ndims2, dims2);
Oid element_type = ARR_ELEMTYPE(array1);
FmgrInfo *ae_fmgr_info = fcinfo->flinfo;
bool result = true;
int typlen;
bool typbyval;
char typdelim;
Oid typelem;
char typalign;
Oid typiofunc;
int i;
ArrayMetaState *my_extra;
FunctionCallInfoData locfcinfo;
/* fast path if the arrays do not have the same number of elements */
if (nitems1 != nitems2)
if (ARR_SIZE(array1) != ARR_SIZE(array2))
result = false;
else if (memcmp(array1, array2, ARR_SIZE(array1)) != 0)
result = false;
else
{
/*
* We arrange to look up the equality function only once per series of
* calls, assuming the element type doesn't change underneath us.
*/
my_extra = (ArrayMetaState *) ae_fmgr_info->fn_extra;
if (my_extra == NULL)
{
ae_fmgr_info->fn_extra = MemoryContextAlloc(ae_fmgr_info->fn_mcxt,
sizeof(ArrayMetaState));
my_extra = (ArrayMetaState *) ae_fmgr_info->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
Oid opfuncid = equality_oper_funcid(element_type);
if (OidIsValid(opfuncid))
fmgr_info_cxt(opfuncid, &my_extra->proc, ae_fmgr_info->fn_mcxt);
else
elog(ERROR,
"array_eq: cannot find equality operator for type: %u",
element_type);
get_type_metadata(element_type, IOFunc_output,
&typlen, &typbyval, &typdelim,
&typelem, &typiofunc, &typalign);
my_extra->element_type = element_type;
my_extra->typlen = typlen;
my_extra->typbyval = typbyval;
my_extra->typdelim = typdelim;
my_extra->typelem = typelem;
my_extra->typiofunc = typiofunc;
my_extra->typalign = typalign;
}
else
{
typlen = my_extra->typlen;
typbyval = my_extra->typbyval;
typdelim = my_extra->typdelim;
typelem = my_extra->typelem;
typiofunc = my_extra->typiofunc;
typalign = my_extra->typalign;
}
/*
* apply the operator to each pair of array elements.
*/
MemSet(&locfcinfo, 0, sizeof(locfcinfo));
locfcinfo.flinfo = &my_extra->proc;
locfcinfo.nargs = 2;
/* Loop over source data */
for (i = 0; i < nitems1; i++)
{
Datum elt1;
Datum elt2;
bool oprresult;
/* Get element pair */
elt1 = fetch_att(p1, typbyval, typlen);
elt2 = fetch_att(p2, typbyval, typlen);
p1 = att_addlength(p1, typlen, PointerGetDatum(p1));
p1 = (char *) att_align(p1, typalign);
p2 = att_addlength(p2, typlen, PointerGetDatum(p2));
p2 = (char *) att_align(p2, typalign);
/*
* Apply the operator to the element pair
*/
locfcinfo.arg[0] = elt1;
locfcinfo.arg[1] = elt2;
locfcinfo.argnull[0] = false;
locfcinfo.argnull[1] = false;
locfcinfo.isnull = false;
oprresult = DatumGetBool(FunctionCallInvoke(&locfcinfo));
if (!oprresult)
{
result = false;
break;
}
}
}
/* Avoid leaking memory when handed toasted input. */
PG_FREE_IF_COPY(array1, 0);
@ -2439,190 +2073,53 @@ array_eq(PG_FUNCTION_ARGS)
}
/*-----------------------------------------------------------------------------
* array-array bool operators:
* Given two arrays, iterate comparison operators
* over the array. Uses logic similar to text comparison
* functions, except element-by-element instead of
* character-by-character.
*----------------------------------------------------------------------------
*/
Datum
array_ne(PG_FUNCTION_ARGS)
{
PG_RETURN_BOOL(!DatumGetBool(array_eq(fcinfo)));
}
Datum
array_lt(PG_FUNCTION_ARGS)
{
PG_RETURN_BOOL(array_cmp(fcinfo) < 0);
}
Datum
array_gt(PG_FUNCTION_ARGS)
{
PG_RETURN_BOOL(array_cmp(fcinfo) > 0);
}
Datum
array_le(PG_FUNCTION_ARGS)
{
PG_RETURN_BOOL(array_cmp(fcinfo) <= 0);
}
Datum
array_ge(PG_FUNCTION_ARGS)
{
PG_RETURN_BOOL(array_cmp(fcinfo) >= 0);
}
Datum
btarraycmp(PG_FUNCTION_ARGS)
{
PG_RETURN_INT32(array_cmp(fcinfo));
}
/*
* array_cmp()
* Internal comparison function for arrays.
*
* Returns -1, 0 or 1
*/
static int
array_cmp(FunctionCallInfo fcinfo)
{
ArrayType *array1 = PG_GETARG_ARRAYTYPE_P(0);
ArrayType *array2 = PG_GETARG_ARRAYTYPE_P(1);
FmgrInfo *ac_fmgr_info = fcinfo->flinfo;
Datum opresult;
int result = 0;
Oid element_type = InvalidOid;
int typlen;
bool typbyval;
char typdelim;
Oid typelem;
char typalign;
Oid typiofunc;
Datum *dvalues1;
int nelems1;
Datum *dvalues2;
int nelems2;
int min_nelems;
int i;
typedef struct
{
Oid element_type;
int typlen;
bool typbyval;
char typdelim;
Oid typelem;
Oid typiofunc;
char typalign;
FmgrInfo eqproc;
FmgrInfo ordproc;
} ac_extra;
ac_extra *my_extra;
element_type = ARR_ELEMTYPE(array1);
/*
* We arrange to look up the element type operator function only once
* per series of calls, assuming the element type and opname don't
* change underneath us.
*/
my_extra = (ac_extra *) ac_fmgr_info->fn_extra;
if (my_extra == NULL)
{
ac_fmgr_info->fn_extra = MemoryContextAlloc(ac_fmgr_info->fn_mcxt,
sizeof(ac_extra));
my_extra = (ac_extra *) ac_fmgr_info->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
Oid eqfuncid = equality_oper_funcid(element_type);
Oid ordfuncid = ordering_oper_funcid(element_type);
fmgr_info_cxt(eqfuncid, &my_extra->eqproc, ac_fmgr_info->fn_mcxt);
fmgr_info_cxt(ordfuncid, &my_extra->ordproc, ac_fmgr_info->fn_mcxt);
if (my_extra->eqproc.fn_nargs != 2)
elog(ERROR, "Equality operator does not take 2 arguments: %u",
eqfuncid);
if (my_extra->ordproc.fn_nargs != 2)
elog(ERROR, "Ordering operator does not take 2 arguments: %u",
ordfuncid);
get_type_metadata(element_type, IOFunc_output,
&typlen, &typbyval, &typdelim,
&typelem, &typiofunc, &typalign);
my_extra->element_type = element_type;
my_extra->typlen = typlen;
my_extra->typbyval = typbyval;
my_extra->typdelim = typdelim;
my_extra->typelem = typelem;
my_extra->typiofunc = InvalidOid;
my_extra->typalign = typalign;
}
else
{
typlen = my_extra->typlen;
typbyval = my_extra->typbyval;
typalign = my_extra->typalign;
}
/* extract a C array of arg array datums */
deconstruct_array(array1, element_type, typlen, typbyval, typalign,
&dvalues1, &nelems1);
deconstruct_array(array2, element_type, typlen, typbyval, typalign,
&dvalues2, &nelems2);
min_nelems = Min(nelems1, nelems2);
for (i = 0; i < min_nelems; i++)
{
/* are they equal */
opresult = FunctionCall2(&my_extra->eqproc,
dvalues1[i], dvalues2[i]);
if (!DatumGetBool(opresult))
{
/* nope, see if arg1 is less than arg2 */
opresult = FunctionCall2(&my_extra->ordproc,
dvalues1[i], dvalues2[i]);
if (DatumGetBool(opresult))
{
/* arg1 is less than arg2 */
result = -1;
break;
}
else
{
/* arg1 is greater than arg2 */
result = 1;
break;
}
}
}
if ((result == 0) && (nelems1 != nelems2))
result = (nelems1 < nelems2) ? -1 : 1;
/* Avoid leaking memory when handed toasted input. */
PG_FREE_IF_COPY(array1, 0);
PG_FREE_IF_COPY(array2, 1);
return result;
}
/***************************************************************************/
/******************| Support Routines |*****************/
/***************************************************************************/
static void
system_cache_lookup(Oid element_type,
IOFuncSelector which_func,
int *typlen,
bool *typbyval,
char *typdelim,
Oid *typelem,
Oid *proc,
char *typalign)
{
HeapTuple typeTuple;
Form_pg_type typeStruct;
typeTuple = SearchSysCache(TYPEOID,
ObjectIdGetDatum(element_type),
0, 0, 0);
if (!HeapTupleIsValid(typeTuple))
elog(ERROR, "cache lookup failed for type %u", element_type);
typeStruct = (Form_pg_type) GETSTRUCT(typeTuple);
*typlen = typeStruct->typlen;
*typbyval = typeStruct->typbyval;
*typdelim = typeStruct->typdelim;
*typelem = typeStruct->typelem;
*typalign = typeStruct->typalign;
switch (which_func)
{
case IOFunc_input:
*proc = typeStruct->typinput;
break;
case IOFunc_output:
*proc = typeStruct->typoutput;
break;
case IOFunc_receive:
*proc = typeStruct->typreceive;
break;
case IOFunc_send:
*proc = typeStruct->typsend;
break;
}
ReleaseSysCache(typeTuple);
}
/*
* Fetch array element at pointer, converted correctly to a Datum
*/
@ -2926,18 +2423,6 @@ array_type_coerce(PG_FUNCTION_ARGS)
if (tgt_elem_type == InvalidOid)
elog(ERROR, "Target type is not an array");
/*
* We don't deal with domain constraints yet, so bail out.
* This isn't currently a problem, because we also don't
* support arrays of domain type elements either. But in the
* future we might. At that point consideration should be given
* to removing the check below and adding a domain constraints
* check to the coercion.
*/
if (getBaseType(tgt_elem_type) != tgt_elem_type)
elog(ERROR, "array coercion to domain type elements not " \
"currently supported");
if (!find_coercion_pathway(tgt_elem_type, src_elem_type,
COERCION_EXPLICIT, &funcId))
{
@ -2954,16 +2439,10 @@ array_type_coerce(PG_FUNCTION_ARGS)
}
/*
* If it's binary-compatible, modify the element type in the array header,
* but otherwise leave the array as we received it.
* If it's binary-compatible, return the array unmodified.
*/
if (my_extra->coerce_finfo.fn_oid == InvalidOid)
{
ArrayType *result = DatumGetArrayTypePCopy(PG_GETARG_DATUM(0));
ARR_ELEMTYPE(result) = my_extra->desttype;
PG_RETURN_ARRAYTYPE_P(result);
}
PG_RETURN_ARRAYTYPE_P(src);
/*
* Use array_map to apply the function to each array element.
@ -2975,118 +2454,3 @@ array_type_coerce(PG_FUNCTION_ARGS)
return array_map(&locfcinfo, my_extra->srctype, my_extra->desttype);
}
/*
* accumArrayResult - accumulate one (more) Datum for an ARRAY_SUBLINK
*
* astate is working state (NULL on first call)
* rcontext is where to keep working state
*/
ArrayBuildState *
accumArrayResult(ArrayBuildState *astate,
Datum dvalue, bool disnull,
Oid element_type,
MemoryContext rcontext)
{
MemoryContext arr_context,
oldcontext;
if (astate == NULL)
{
/* First time through --- initialize */
/* Make a temporary context to hold all the junk */
arr_context = AllocSetContextCreate(rcontext,
"accumArrayResult",
ALLOCSET_DEFAULT_MINSIZE,
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);
oldcontext = MemoryContextSwitchTo(arr_context);
astate = (ArrayBuildState *) palloc(sizeof(ArrayBuildState));
astate->mcontext = arr_context;
astate->dvalues = (Datum *)
palloc(ARRAY_ELEMS_CHUNKSIZE * sizeof(Datum));
astate->nelems = 0;
astate->element_type = element_type;
get_typlenbyvalalign(element_type,
&astate->typlen,
&astate->typbyval,
&astate->typalign);
}
else
{
oldcontext = MemoryContextSwitchTo(astate->mcontext);
Assert(astate->element_type == element_type);
/* enlarge dvalues[] if needed */
if ((astate->nelems % ARRAY_ELEMS_CHUNKSIZE) == 0)
astate->dvalues = (Datum *)
repalloc(astate->dvalues,
(astate->nelems + ARRAY_ELEMS_CHUNKSIZE) * sizeof(Datum));
}
if (disnull)
elog(ERROR, "NULL elements not allowed in Arrays");
/* Use datumCopy to ensure pass-by-ref stuff is copied into mcontext */
astate->dvalues[astate->nelems++] =
datumCopy(dvalue, astate->typbyval, astate->typlen);
MemoryContextSwitchTo(oldcontext);
return astate;
}
/*
* makeArrayResult - produce final result of accumArrayResult
*
* astate is working state (not NULL)
* rcontext is where to construct result
*/
Datum
makeArrayResult(ArrayBuildState *astate,
MemoryContext rcontext)
{
int dims[1];
int lbs[1];
dims[0] = astate->nelems;
lbs[0] = 1;
return makeMdArrayResult(astate, 1, dims, lbs, rcontext);
}
/*
* makeMdArrayResult - produce md final result of accumArrayResult
*
* astate is working state (not NULL)
* rcontext is where to construct result
*/
Datum
makeMdArrayResult(ArrayBuildState *astate,
int ndims,
int *dims,
int *lbs,
MemoryContext rcontext)
{
ArrayType *result;
MemoryContext oldcontext;
/* Build the final array result in rcontext */
oldcontext = MemoryContextSwitchTo(rcontext);
result = construct_md_array(astate->dvalues,
ndims,
dims,
lbs,
astate->element_type,
astate->typlen,
astate->typbyval,
astate->typalign);
MemoryContextSwitchTo(oldcontext);
/* Clean up all the junk */
MemoryContextDelete(astate->mcontext);
return PointerGetDatum(result);
}

196
src/backend/utils/adt/varlena.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varlena.c,v 1.99 2003/06/24 23:14:46 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varlena.c,v 1.100 2003/06/25 21:30:32 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -19,14 +19,11 @@
#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "access/tuptoaster.h"
#include "catalog/pg_type.h"
#include "lib/stringinfo.h"
#include "libpq/crypt.h"
#include "libpq/pqformat.h"
#include "utils/array.h"
#include "utils/builtins.h"
#include "utils/pg_locale.h"
#include "utils/lsyscache.h"
typedef struct varlena unknown;
@ -1986,7 +1983,8 @@ split_text(PG_FUNCTION_ARGS)
if (fldnum == 1) /* first field - just return the input
* string */
PG_RETURN_TEXT_P(inputstring);
else /* otherwise return an empty string */
else
/* otherwise return an empty string */
PG_RETURN_TEXT_P(PG_STR_GET_TEXT(""));
}
@ -2006,7 +2004,8 @@ split_text(PG_FUNCTION_ARGS)
if (fldnum == 1) /* first field - just return the input
* string */
PG_RETURN_TEXT_P(inputstring);
else /* otherwise return an empty string */
else
/* otherwise return an empty string */
PG_RETURN_TEXT_P(PG_STR_GET_TEXT(""));
}
else if ((start_posn != 0) && (end_posn == 0))
@ -2029,191 +2028,6 @@ split_text(PG_FUNCTION_ARGS)
}
}
/*
* text_to_array
* parse input string
* return text array of elements
* based on provided field separator
*/
Datum
text_to_array(PG_FUNCTION_ARGS)
{
text *inputstring = PG_GETARG_TEXT_P(0);
int inputstring_len = TEXTLEN(inputstring);
text *fldsep = PG_GETARG_TEXT_P(1);
int fldsep_len = TEXTLEN(fldsep);
int fldnum;
int start_posn = 0;
int end_posn = 0;
text *result_text = NULL;
ArrayBuildState *astate = NULL;
MemoryContext oldcontext = CurrentMemoryContext;
/* return NULL for empty input string */
if (inputstring_len < 1)
PG_RETURN_NULL();
/* empty field separator
* return one element, 1D, array using the input string */
if (fldsep_len < 1)
PG_RETURN_ARRAYTYPE_P(create_singleton_array(fcinfo, TEXTOID,
CStringGetDatum(inputstring), 1));
/* start with end position holding the initial start position */
end_posn = 0;
for (fldnum=1;;fldnum++) /* field number is 1 based */
{
Datum dvalue;
bool disnull = false;
start_posn = end_posn;
end_posn = text_position(PointerGetDatum(inputstring),
PointerGetDatum(fldsep),
fldnum);
if ((start_posn == 0) && (end_posn == 0)) /* fldsep not found */
{
if (fldnum == 1)
{
/* first element
* return one element, 1D, array using the input string */
PG_RETURN_ARRAYTYPE_P(create_singleton_array(fcinfo, TEXTOID,
CStringGetDatum(inputstring), 1));
}
else
{
/* otherwise create array and exit */
PG_RETURN_ARRAYTYPE_P(makeArrayResult(astate, oldcontext));
}
}
else if ((start_posn != 0) && (end_posn == 0))
{
/* last field requested */
result_text = text_substring(PointerGetDatum(inputstring), start_posn + fldsep_len, -1, true);
}
else if ((start_posn == 0) && (end_posn != 0))
{
/* first field requested */
result_text = LEFT(inputstring, fldsep);
}
else
{
/* prior to last field requested */
result_text = text_substring(PointerGetDatum(inputstring), start_posn + fldsep_len, end_posn - start_posn - fldsep_len, false);
}
/* stash away current value */
dvalue = PointerGetDatum(result_text);
astate = accumArrayResult(astate, dvalue,
disnull, TEXTOID, oldcontext);
}
/* never reached -- keep compiler quiet */
PG_RETURN_NULL();
}
/*
* array_to_text
* concatenate Cstring representation of input array elements
* using provided field separator
*/
Datum
array_to_text(PG_FUNCTION_ARGS)
{
ArrayType *v = PG_GETARG_ARRAYTYPE_P(0);
char *fldsep = PG_TEXTARG_GET_STR(1);
int nitems, *dims, ndims;
char *p;
Oid element_type;
int typlen;
bool typbyval;
char typdelim;
Oid typoutput,
typelem;
FmgrInfo outputproc;
char typalign;
StringInfo result_str = makeStringInfo();
int i;
ArrayMetaState *my_extra;
p = ARR_DATA_PTR(v);
ndims = ARR_NDIM(v);
dims = ARR_DIMS(v);
nitems = ArrayGetNItems(ndims, dims);
/* if there are no elements, return an empty string */
if (nitems == 0)
PG_RETURN_TEXT_P(PG_STR_GET_TEXT(""));
element_type = ARR_ELEMTYPE(v);
/*
* We arrange to look up info about element type, including its output
* conversion proc only once per series of calls, assuming the element
* type doesn't change underneath us.
*/
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
if (my_extra == NULL)
{
fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(ArrayMetaState));
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
/* Get info about element type, including its output conversion proc */
get_type_metadata(element_type, IOFunc_output,
&typlen, &typbyval, &typdelim,
&typelem, &typoutput, &typalign);
fmgr_info(typoutput, &outputproc);
my_extra->element_type = element_type;
my_extra->typlen = typlen;
my_extra->typbyval = typbyval;
my_extra->typdelim = typdelim;
my_extra->typelem = typelem;
my_extra->typiofunc = typoutput;
my_extra->typalign = typalign;
my_extra->proc = outputproc;
}
else
{
typlen = my_extra->typlen;
typbyval = my_extra->typbyval;
typdelim = my_extra->typdelim;
typelem = my_extra->typelem;
typoutput = my_extra->typiofunc;
typalign = my_extra->typalign;
outputproc = my_extra->proc;
}
for (i = 0; i < nitems; i++)
{
Datum itemvalue;
char *value;
itemvalue = fetch_att(p, typbyval, typlen);
value = DatumGetCString(FunctionCall3(&outputproc,
itemvalue,
ObjectIdGetDatum(typelem),
Int32GetDatum(-1)));
if (i > 0)
appendStringInfo(result_str, "%s%s", fldsep, value);
else
appendStringInfo(result_str, "%s", value);
p = att_addlength(p, typlen, PointerGetDatum(p));
p = (char *) att_align(p, typalign);
}
PG_RETURN_TEXT_P(PG_STR_GET_TEXT(result_str->data));
}
#define HEXBASE 16
/*
* Convert a int32 to a string containing a base 16 (hex) representation of

86
src/backend/utils/cache/lsyscache.c vendored
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.98 2003/06/25 03:56:31 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.99 2003/06/25 21:30:32 momjian Exp $
*
* NOTES
* Eventually, the index information should go through here, too.
@ -718,40 +718,6 @@ get_func_rettype(Oid funcid)
return result;
}
/*
* get_func_argtypes
* Given procedure id, return the function's argument types.
* Also pass back the number of arguments.
*/
Oid *
get_func_argtypes(Oid funcid, int *nargs)
{
HeapTuple tp;
Form_pg_proc procstruct;
Oid *result = NULL;
int i;
tp = SearchSysCache(PROCOID,
ObjectIdGetDatum(funcid),
0, 0, 0);
if (!HeapTupleIsValid(tp))
elog(ERROR, "Function OID %u does not exist", funcid);
procstruct = (Form_pg_proc) GETSTRUCT(tp);
*nargs = (int) procstruct->pronargs;
if (*nargs > 0)
{
result = (Oid *) palloc(*nargs * sizeof(Oid));
for (i = 0; i < *nargs; i++)
result[i] = procstruct->proargtypes[i];
}
ReleaseSysCache(tp);
return result;
}
/*
* get_func_retset
* Given procedure id, return the function's proretset flag.
@ -1124,56 +1090,6 @@ get_typlenbyvalalign(Oid typid, int16 *typlen, bool *typbyval,
ReleaseSysCache(tp);
}
/*
* get_type_metadata
*
* A six-fer: given the type OID, return typlen, typbyval, typalign,
* typdelim, typelem, IO function Oid. The IO function
* returned is controlled by IOFuncSelector
*/
void
get_type_metadata(Oid element_type,
IOFuncSelector which_func,
int *typlen,
bool *typbyval,
char *typdelim,
Oid *typelem,
Oid *proc,
char *typalign)
{
HeapTuple typeTuple;
Form_pg_type typeStruct;
typeTuple = SearchSysCache(TYPEOID,
ObjectIdGetDatum(element_type),
0, 0, 0);
if (!HeapTupleIsValid(typeTuple))
elog(ERROR, "cache lookup failed for type %u", element_type);
typeStruct = (Form_pg_type) GETSTRUCT(typeTuple);
*typlen = typeStruct->typlen;
*typbyval = typeStruct->typbyval;
*typdelim = typeStruct->typdelim;
*typelem = typeStruct->typelem;
*typalign = typeStruct->typalign;
switch (which_func)
{
case IOFunc_input:
*proc = typeStruct->typinput;
break;
case IOFunc_output:
*proc = typeStruct->typoutput;
break;
case IOFunc_receive:
*proc = typeStruct->typreceive;
break;
case IOFunc_send:
*proc = typeStruct->typsend;
break;
}
ReleaseSysCache(typeTuple);
}
#ifdef NOT_USED
char
get_typalign(Oid typid)

28
src/backend/utils/fmgr/fmgr.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/fmgr/fmgr.c,v 1.69 2003/06/24 23:14:46 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/fmgr/fmgr.c,v 1.70 2003/06/25 21:30:32 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -1673,29 +1673,3 @@ get_fn_expr_argtype(FunctionCallInfo fcinfo, int argnum)
return exprType((Node *) nth(argnum, args));
}
/*
* Get the OID of the function or operator
*
* Returns InvalidOid if information is not available
*/
Oid
get_fn_expr_functype(FunctionCallInfo fcinfo)
{
Node *expr;
/*
* can't return anything useful if we have no FmgrInfo or if
* its fn_expr node has not been initialized
*/
if (!fcinfo || !fcinfo->flinfo || !fcinfo->flinfo->fn_expr)
return InvalidOid;
expr = fcinfo->flinfo->fn_expr;
if (IsA(expr, FuncExpr))
return ((FuncExpr *) expr)->funcid;
else if (IsA(expr, OpExpr))
return ((OpExpr *) expr)->opno;
else
return InvalidOid;
}

11
src/include/catalog/pg_amop.h
View File

@ -16,7 +16,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_amop.h,v 1.51 2003/06/24 23:14:46 momjian Exp $
* $Id: pg_amop.h,v 1.52 2003/06/25 21:30:32 momjian Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
@ -418,15 +418,6 @@ DATA(insert ( 2098 3 f 2334 ));
DATA(insert ( 2098 4 f 2335 ));
DATA(insert ( 2098 5 f 2336 ));
/*
* btree array_ops
*/
DATA(insert ( 397 1 f 1072 ));
DATA(insert ( 397 2 f 1074 ));
DATA(insert ( 397 3 f 1070 ));
DATA(insert ( 397 4 f 1075 ));
DATA(insert ( 397 5 f 1073 ));
/*
* hash index _ops

3
src/include/catalog/pg_amproc.h
View File

@ -14,7 +14,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_amproc.h,v 1.39 2003/06/24 23:14:46 momjian Exp $
* $Id: pg_amproc.h,v 1.40 2003/06/25 21:30:32 momjian Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
@ -78,7 +78,6 @@ DATA(insert ( 1993 3 199 ));
/* btree */
DATA(insert ( 397 1 382 ));
DATA(insert ( 421 1 357 ));
DATA(insert ( 423 1 1596 ));
DATA(insert ( 424 1 1693 ));

4
src/include/catalog/pg_opclass.h
View File

@ -26,7 +26,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_opclass.h,v 1.52 2003/06/24 23:14:46 momjian Exp $
* $Id: pg_opclass.h,v 1.53 2003/06/25 21:30:32 momjian Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
@ -87,8 +87,6 @@ typedef FormData_pg_opclass *Form_pg_opclass;
*/
DATA(insert OID = 421 ( 403 abstime_ops PGNSP PGUID 702 t 0 ));
DATA(insert OID = 397 ( 403 array_ops PGNSP PGUID 2277 t 0 ));
#define ARRAY_BTREE_OPS_OID 397
DATA(insert OID = 422 ( 402 bigbox_ops PGNSP PGUID 603 f 0 ));
DATA(insert OID = 423 ( 403 bit_ops PGNSP PGUID 1560 t 0 ));
DATA(insert OID = 424 ( 403 bool_ops PGNSP PGUID 16 t 0 ));

16
src/include/catalog/pg_operator.h
View File

@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_operator.h,v 1.116 2003/06/24 23:14:46 momjian Exp $
* $Id: pg_operator.h,v 1.117 2003/06/25 21:30:32 momjian Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
@ -116,15 +116,10 @@ DATA(insert OID = 96 ( "=" PGNSP PGUID b t 23 23 16 96 518 97 97 97 521 int
DATA(insert OID = 97 ( "<" PGNSP PGUID b f 23 23 16 521 525 0 0 0 0 int4lt scalarltsel scalarltjoinsel ));
DATA(insert OID = 98 ( "=" PGNSP PGUID b t 25 25 16 98 531 664 664 664 666 texteq eqsel eqjoinsel ));
DATA(insert OID = 1070 ( "=" PGNSP PGUID b f 2277 2277 16 1070 1071 1072 1072 1072 1073 array_eq eqsel eqjoinsel ));
DATA(insert OID = 1071 ( "<>" PGNSP PGUID b f 2277 2277 16 1071 1070 0 0 0 0 array_ne neqsel neqjoinsel ));
DATA(insert OID = 1072 ( "<" PGNSP PGUID b f 2277 2277 16 1073 1075 0 0 0 0 array_lt scalarltsel scalarltjoinsel ));
DATA(insert OID = 1073 ( ">" PGNSP PGUID b f 2277 2277 16 1072 1074 0 0 0 0 array_gt scalargtsel scalargtjoinsel ));
DATA(insert OID = 1074 ( "<=" PGNSP PGUID b f 2277 2277 16 1075 1073 0 0 0 0 array_le scalarltsel scalarltjoinsel ));
DATA(insert OID = 1075 ( ">=" PGNSP PGUID b f 2277 2277 16 1074 1072 0 0 0 0 array_ge scalargtsel scalargtjoinsel ));
DATA(insert OID = 349 ( "||" PGNSP PGUID b f 2277 2283 2277 0 0 0 0 0 0 array_append - - ));
DATA(insert OID = 374 ( "||" PGNSP PGUID b f 2283 2277 2277 0 0 0 0 0 0 array_prepend - - ));
DATA(insert OID = 375 ( "||" PGNSP PGUID b f 2277 2277 2277 0 0 0 0 0 0 array_cat - - ));
DATA(insert OID = 329 ( "=" PGNSP PGUID b f 2277 2277 16 329 0 0 0 0 0 array_eq eqsel eqjoinsel ));
DATA(insert OID = 349 ( "||" PGNSP PGUID b f 2277 2283 2277 0 0 0 0 0 0 array_append - - ));
DATA(insert OID = 374 ( "||" PGNSP PGUID b f 2283 2277 2277 0 0 0 0 0 0 array_prepend - - ));
DATA(insert OID = 375 ( "||" PGNSP PGUID b f 2277 2277 2277 0 0 0 0 0 0 array_cat - - ));
DATA(insert OID = 352 ( "=" PGNSP PGUID b t 28 28 16 352 0 0 0 0 0 xideq eqsel eqjoinsel ));
DATA(insert OID = 353 ( "=" PGNSP PGUID b f 28 23 16 0 0 0 0 0 0 xideqint4 eqsel eqjoinsel ));
@ -430,7 +425,6 @@ DATA(insert OID = 965 ( "^" PGNSP PGUID b f 701 701 701 0 0 0 0 0 0 dpow -
DATA(insert OID = 966 ( "+" PGNSP PGUID b f 1034 1033 1034 0 0 0 0 0 0 aclinsert - - ));
DATA(insert OID = 967 ( "-" PGNSP PGUID b f 1034 1033 1034 0 0 0 0 0 0 aclremove - - ));
DATA(insert OID = 968 ( "~" PGNSP PGUID b f 1034 1033 16 0 0 0 0 0 0 aclcontains - - ));
DATA(insert OID = 974 ( "=" PGNSP PGUID b f 1033 1033 16 0 0 0 0 0 0 aclitemeq eqsel eqjoinsel ));
/* additional geometric operators - thomas 1997-07-09 */
DATA(insert OID = 969 ( "@@" PGNSP PGUID l f 0 601 600 0 0 0 0 0 0 lseg_center - - ));

33
src/include/catalog/pg_proc.h
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_proc.h,v 1.306 2003/06/24 23:14:47 momjian Exp $
* $Id: pg_proc.h,v 1.307 2003/06/25 21:30:32 momjian Exp $
*
* NOTES
* The script catalog/genbki.sh reads this file and generates .bki
@ -758,8 +758,6 @@ DATA(insert OID = 359 ( btnamecmp PGNSP PGUID 12 f f t f i 2 23 "19 19" btn
DESCR("btree less-equal-greater");
DATA(insert OID = 360 ( bttextcmp PGNSP PGUID 12 f f t f i 2 23 "25 25" bttextcmp - _null_ ));
DESCR("btree less-equal-greater");
DATA(insert OID = 382 ( btarraycmp PGNSP PGUID 12 f f t f i 2 23 "2277 2277" btarraycmp - _null_ ));
DESCR("btree less-equal-greater");
DATA(insert OID = 361 ( lseg_distance PGNSP PGUID 12 f f t f i 2 701 "601 601" lseg_distance - _null_ ));
DESCR("distance between");
@ -990,23 +988,14 @@ DESCR("greater-than");
DATA(insert OID = 743 ( text_ge PGNSP PGUID 12 f f t f i 2 16 "25 25" text_ge - _null_ ));
DESCR("greater-than-or-equal");
DATA(insert OID = 744 ( array_eq PGNSP PGUID 12 f f t f i 2 16 "2277 2277" array_eq - _null_ ));
DESCR("array equal");
DATA(insert OID = 745 ( current_user PGNSP PGUID 12 f f t f s 0 19 "" current_user - _null_ ));
DESCR("current user name");
DATA(insert OID = 746 ( session_user PGNSP PGUID 12 f f t f s 0 19 "" session_user - _null_ ));
DESCR("session user name");
DATA(insert OID = 744 ( array_eq PGNSP PGUID 12 f f t f i 2 16 "2277 2277" array_eq - _null_ ));
DESCR("array equal");
DATA(insert OID = 390 ( array_ne PGNSP PGUID 12 f f t f i 2 16 "2277 2277" array_ne - _null_ ));
DESCR("array not equal");
DATA(insert OID = 391 ( array_lt PGNSP PGUID 12 f f t f i 2 16 "2277 2277" array_lt - _null_ ));
DESCR("array less than");
DATA(insert OID = 392 ( array_gt PGNSP PGUID 12 f f t f i 2 16 "2277 2277" array_gt - _null_ ));
DESCR("array greater than");
DATA(insert OID = 393 ( array_le PGNSP PGUID 12 f f t f i 2 16 "2277 2277" array_le - _null_ ));
DESCR("array less than or equal");
DATA(insert OID = 396 ( array_ge PGNSP PGUID 12 f f t f i 2 16 "2277 2277" array_ge - _null_ ));
DESCR("array greater than or equal");
DATA(insert OID = 747 ( array_dims PGNSP PGUID 12 f f t f i 1 25 "2277" array_dims - _null_ ));
DESCR("array dimensions");
DATA(insert OID = 750 ( array_in PGNSP PGUID 12 f f t f s 3 2277 "2275 26 23" array_in - _null_ ));
@ -1017,18 +1006,22 @@ DATA(insert OID = 2091 ( array_lower PGNSP PGUID 12 f f t f i 2 23 "2277 23"
DESCR("array lower dimension");
DATA(insert OID = 2092 ( array_upper PGNSP PGUID 12 f f t f i 2 23 "2277 23" array_upper - _null_ ));
DESCR("array upper dimension");
DATA(insert OID = 377 ( singleton_array PGNSP PGUID 12 f f t f i 1 2277 "2283" singleton_array - _null_ ));
DESCR("create array from single element");
DATA(insert OID = 378 ( array_append PGNSP PGUID 12 f f t f i 2 2277 "2277 2283" array_push - _null_ ));
DESCR("append element onto end of array");
DATA(insert OID = 379 ( array_prepend PGNSP PGUID 12 f f t f i 2 2277 "2283 2277" array_push - _null_ ));
DESCR("prepend element onto front of array");
DATA(insert OID = 380 ( array_accum PGNSP PGUID 12 f f f f i 2 2277 "2277 2283" array_accum - _null_ ));
DESCR("push element onto end of array, creating array if needed");
DATA(insert OID = 381 ( array_assign PGNSP PGUID 12 f f t f i 3 2277 "2277 23 2283" array_assign - _null_ ));
DESCR("assign specific array element");
DATA(insert OID = 382 ( array_subscript PGNSP PGUID 12 f f t f i 2 2283 "2277 23" array_subscript - _null_ ));
DESCR("return specific array element");
DATA(insert OID = 383 ( array_cat PGNSP PGUID 12 f f t f i 2 2277 "2277 2277" array_cat - _null_ ));
DESCR("concatenate two arrays");
DATA(insert OID = 384 ( array_coerce PGNSP PGUID 12 f f t f i 1 2277 "2277" array_type_coerce - _null_ ));
DESCR("coerce array type to another array type");
DATA(insert OID = 394 ( string_to_array PGNSP PGUID 12 f f t f i 2 1009 "25 25" text_to_array - _null_ ));
DESCR("split delimited text into text[]");
DATA(insert OID = 395 ( array_to_string PGNSP PGUID 12 f f t f i 2 25 "2277 25" array_to_text - _null_ ));
DESCR("concatenate array elements, using delimiter, into text");
DATA(insert OID = 760 ( smgrin PGNSP PGUID 12 f f t f s 1 210 "2275" smgrin - _null_ ));
DESCR("I/O");
@ -1329,8 +1322,6 @@ DATA(insert OID = 1036 ( aclremove PGNSP PGUID 12 f f t f s 2 1034 "1034 10
DESCR("remove ACL item");
DATA(insert OID = 1037 ( aclcontains PGNSP PGUID 12 f f t f s 2 16 "1034 1033" aclcontains - _null_ ));
DESCR("does ACL contain item?");
DATA(insert OID = 1062 ( aclitemeq PGNSP PGUID 12 f f t f s 2 16 "1033 1033" aclitem_eq - _null_ ));
DESCR("equality operator for ACL items");
DATA(insert OID = 1365 ( makeaclitem PGNSP PGUID 12 f f t f s 5 1033 "23 23 23 25 16" makeaclitem - _null_ ));
DESCR("make ACL item");
DATA(insert OID = 1038 ( seteval PGNSP PGUID 12 f f t t v 1 23 "26" seteval - _null_ ));

11
src/include/fmgr.h
View File

@ -11,14 +11,13 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: fmgr.h,v 1.28 2003/06/24 23:14:46 momjian Exp $
* $Id: fmgr.h,v 1.29 2003/06/25 21:30:32 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef FMGR_H
#define FMGR_H
#include "nodes/nodes.h"
/*
* All functions that can be called directly by fmgr must have this signature.
@ -373,14 +372,14 @@ extern Datum OidFunctionCall9(Oid functionId, Datum arg1, Datum arg2,
Datum arg6, Datum arg7, Datum arg8,
Datum arg9);
/*
* Routines in fmgr.c
*/
extern Pg_finfo_record *fetch_finfo_record(void *filehandle, char *funcname);
extern Oid fmgr_internal_function(const char *proname);
extern Oid get_fn_expr_rettype(FunctionCallInfo fcinfo);
extern Oid get_fn_expr_argtype(FunctionCallInfo fcinfo, int argnum);
extern Oid get_fn_expr_functype(FunctionCallInfo fcinfo);
extern Oid fmgr_internal_function(const char *proname);
extern Oid get_fn_expr_rettype(FunctionCallInfo fcinfo);
extern Oid get_fn_expr_argtype(FunctionCallInfo fcinfo, int argnum);
/*
* Routines in dfmgr.c

24
src/include/nodes/primnodes.h
View File

@ -10,7 +10,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: primnodes.h,v 1.84 2003/06/24 23:14:48 momjian Exp $
* $Id: primnodes.h,v 1.85 2003/06/25 21:30:33 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -226,7 +226,6 @@ typedef struct Aggref
Index agglevelsup; /* > 0 if agg belongs to outer query */
bool aggstar; /* TRUE if argument was really '*' */
bool aggdistinct; /* TRUE if it's agg(DISTINCT ...) */
List *args; /* arguments to the aggregate */
} Aggref;
/* ----------------
@ -359,19 +358,15 @@ typedef struct BoolExpr
/* ----------------
* SubLink
*
* A SubLink represents a subselect, or an expression, appearing in an
* expression, and in some cases also the combining operator(s) just above
* it. The subLinkType indicates the form of the expression represented:
* A SubLink represents a subselect appearing in an expression, and in some
* cases also the combining operator(s) just above it. The subLinkType
* indicates the form of the expression represented:
* EXISTS_SUBLINK EXISTS(SELECT ...)
* ALL_SUBLINK (lefthand) op ALL (SELECT ...)
* ANY_SUBLINK (lefthand) op ANY (SELECT ...)
* MULTIEXPR_SUBLINK (lefthand) op (SELECT ...)
* EXPR_SUBLINK (SELECT with single targetlist item ...)
* ARRAY_SUBLINK ARRAY(SELECT with single targetlist item ...)
* If an expression is used in place of the subselect, it is transformed
* into a simple "(SELECT expr)" in gram.y. This is to allow arrays to be
* used as if they were the result of a single column subselect. If the
* expression is scalar, it is treated as a one element array.
* For ALL, ANY, and MULTIEXPR, the lefthand is a list of expressions of the
* same length as the subselect's targetlist. MULTIEXPR will *always* have
* a list with more than one entry; if the subselect has just one target
@ -420,8 +415,6 @@ typedef struct SubLink
SubLinkType subLinkType; /* EXISTS, ALL, ANY, MULTIEXPR, EXPR */
bool useOr; /* TRUE to combine column results with
* "OR" not "AND" */
bool isExpr; /* TRUE if the subselect is really derived
* from a single expression */
List *lefthand; /* list of outer-query expressions on the
* left */
List *operName; /* originally specified operator name */
@ -463,15 +456,6 @@ typedef struct SubPlan
SubLinkType subLinkType; /* EXISTS, ALL, ANY, MULTIEXPR, EXPR */
bool useOr; /* TRUE to combine column results with
* "OR" not "AND" */
bool isExpr; /* TRUE if the subselect is really derived
* from a single expression */
/* runtime cache for single array expressions */
Oid exprtype; /* array and element type, and other info
* needed deconstruct the array */
Oid elemtype;
int16 elmlen;
bool elmbyval;
char elmalign;
/* The combining operators, transformed to executable expressions: */
List *exprs; /* list of OpExpr expression trees */
List *paramIds; /* IDs of Params embedded in the above */

5
src/include/optimizer/clauses.h
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: clauses.h,v 1.64 2003/06/24 23:14:49 momjian Exp $
* $Id: clauses.h,v 1.65 2003/06/25 21:30:33 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -28,9 +28,6 @@ extern Expr *make_opclause(Oid opno, Oid opresulttype, bool opretset,
extern Node *get_leftop(Expr *clause);
extern Node *get_rightop(Expr *clause);
extern Expr *make_funcclause(Oid funcid, Oid funcresulttype, bool funcretset,
CoercionForm funcformat, List *funcargs);
extern bool not_clause(Node *clause);
extern Expr *make_notclause(Expr *notclause);
extern Expr *get_notclausearg(Expr *notclause);

3
src/include/parser/parse_oper.h
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: parse_oper.h,v 1.26 2003/06/24 23:14:49 momjian Exp $
* $Id: parse_oper.h,v 1.27 2003/06/25 21:30:33 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -44,7 +44,6 @@ extern Operator ordering_oper(Oid argtype, bool noError);
/* Convenience routines for common calls on the above */
extern Oid compatible_oper_opid(List *op, Oid arg1, Oid arg2, bool noError);
extern Oid equality_oper_funcid(Oid argtype);
extern Oid ordering_oper_funcid(Oid argtype);
extern Oid ordering_oper_opid(Oid argtype);
/* Extract operator OID or underlying-function OID from an Operator tuple */

3
src/include/utils/acl.h
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: acl.h,v 1.53 2003/06/24 23:14:49 momjian Exp $
* $Id: acl.h,v 1.54 2003/06/25 21:30:33 momjian Exp $
*
* NOTES
* For backward-compatibility purposes we have to allow there
@ -192,7 +192,6 @@ extern Datum aclinsert(PG_FUNCTION_ARGS);
extern Datum aclremove(PG_FUNCTION_ARGS);
extern Datum aclcontains(PG_FUNCTION_ARGS);
extern Datum makeaclitem(PG_FUNCTION_ARGS);
extern Datum aclitem_eq(PG_FUNCTION_ARGS);
/*
* prototypes for functions in aclchk.c

55
src/include/utils/array.h
View File

@ -10,7 +10,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: array.h,v 1.39 2003/06/24 23:14:49 momjian Exp $
* $Id: array.h,v 1.40 2003/06/25 21:30:33 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -32,37 +32,6 @@ typedef struct
Oid elemtype; /* element type OID */
} ArrayType;
typedef struct ArrayBuildState
{
MemoryContext mcontext; /* where all the temp stuff is kept */
Datum *dvalues; /* array of accumulated Datums */
/*
* The allocated size of dvalues[] is always a multiple of
* ARRAY_ELEMS_CHUNKSIZE
*/
#define ARRAY_ELEMS_CHUNKSIZE 64
int nelems; /* number of valid Datums in dvalues[] */
Oid element_type; /* data type of the Datums */
int16 typlen; /* needed info about datatype */
bool typbyval;
char typalign;
} ArrayBuildState;
/*
* structure to cache type metadata needed for array manipulation
*/
typedef struct ArrayMetaState
{
Oid element_type;
int typlen;
bool typbyval;
char typdelim;
Oid typelem;
Oid typiofunc;
char typalign;
FmgrInfo proc;
} ArrayMetaState;
/*
* fmgr macros for array objects
*/
@ -117,15 +86,11 @@ extern Datum array_recv(PG_FUNCTION_ARGS);
extern Datum array_send(PG_FUNCTION_ARGS);
extern Datum array_length_coerce(PG_FUNCTION_ARGS);
extern Datum array_eq(PG_FUNCTION_ARGS);
extern Datum array_ne(PG_FUNCTION_ARGS);
extern Datum array_lt(PG_FUNCTION_ARGS);
extern Datum array_gt(PG_FUNCTION_ARGS);
extern Datum array_le(PG_FUNCTION_ARGS);
extern Datum array_ge(PG_FUNCTION_ARGS);
extern Datum btarraycmp(PG_FUNCTION_ARGS);
extern Datum array_dims(PG_FUNCTION_ARGS);
extern Datum array_lower(PG_FUNCTION_ARGS);
extern Datum array_upper(PG_FUNCTION_ARGS);
extern Datum array_assign(PG_FUNCTION_ARGS);
extern Datum array_subscript(PG_FUNCTION_ARGS);
extern Datum array_type_coerce(PG_FUNCTION_ARGS);
extern Datum array_ref(ArrayType *array, int nSubscripts, int *indx,
@ -159,14 +124,7 @@ extern void deconstruct_array(ArrayType *array,
Oid elmtype,
int elmlen, bool elmbyval, char elmalign,
Datum **elemsp, int *nelemsp);
extern ArrayBuildState *accumArrayResult(ArrayBuildState *astate,
Datum dvalue, bool disnull,
Oid element_type,
MemoryContext rcontext);
extern Datum makeArrayResult(ArrayBuildState *astate,
MemoryContext rcontext);
extern Datum makeMdArrayResult(ArrayBuildState *astate, int ndims,
int *dims, int *lbs, MemoryContext rcontext);
/*
* prototypes for functions defined in arrayutils.c
@ -183,11 +141,12 @@ extern int mda_next_tuple(int n, int *curr, int *span);
/*
* prototypes for functions defined in array_userfuncs.c
*/
extern Datum singleton_array(PG_FUNCTION_ARGS);
extern Datum array_push(PG_FUNCTION_ARGS);
extern Datum array_accum(PG_FUNCTION_ARGS);
extern Datum array_cat(PG_FUNCTION_ARGS);
extern ArrayType *create_singleton_array(FunctionCallInfo fcinfo,
Oid element_type,
extern ArrayType *create_singleton_array(Oid element_type,
Datum element,
int ndims);

4
src/include/utils/builtins.h
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: builtins.h,v 1.221 2003/06/24 23:14:49 momjian Exp $
* $Id: builtins.h,v 1.222 2003/06/25 21:30:33 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -530,8 +530,6 @@ extern bool SplitIdentifierString(char *rawstring, char separator,
List **namelist);
extern Datum replace_text(PG_FUNCTION_ARGS);
extern Datum split_text(PG_FUNCTION_ARGS);
extern Datum text_to_array(PG_FUNCTION_ARGS);
extern Datum array_to_text(PG_FUNCTION_ARGS);
extern Datum to_hex32(PG_FUNCTION_ARGS);
extern Datum to_hex64(PG_FUNCTION_ARGS);
extern Datum md5_text(PG_FUNCTION_ARGS);

20
src/include/utils/lsyscache.h
View File

@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: lsyscache.h,v 1.73 2003/06/25 03:56:31 momjian Exp $
* $Id: lsyscache.h,v 1.74 2003/06/25 21:30:33 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -15,15 +15,6 @@
#include "access/htup.h"
/* I/O function selector for system_cache_lookup */
typedef enum IOFuncSelector
{
IOFunc_input,
IOFunc_output,
IOFunc_receive,
IOFunc_send
} IOFuncSelector;
extern bool op_in_opclass(Oid opno, Oid opclass);
extern bool op_requires_recheck(Oid opno, Oid opclass);
extern Oid get_opclass_member(Oid opclass, int16 strategy);
@ -50,7 +41,6 @@ extern RegProcedure get_oprrest(Oid opno);
extern RegProcedure get_oprjoin(Oid opno);
extern char *get_func_name(Oid funcid);
extern Oid get_func_rettype(Oid funcid);
extern Oid *get_func_argtypes(Oid funcid, int *nargs);
extern bool get_func_retset(Oid funcid);
extern bool func_strict(Oid funcid);
extern char func_volatile(Oid funcid);
@ -66,14 +56,6 @@ extern bool get_typbyval(Oid typid);
extern void get_typlenbyval(Oid typid, int16 *typlen, bool *typbyval);
extern void get_typlenbyvalalign(Oid typid, int16 *typlen, bool *typbyval,
char *typalign);
extern void get_type_metadata(Oid element_type,
IOFuncSelector which_func,
int *typlen,
bool *typbyval,
char *typdelim,
Oid *typelem,
Oid *proc,
char *typalign);
extern char get_typstorage(Oid typid);
extern int32 get_typtypmod(Oid typid);
extern Node *get_typdefault(Oid typid);

8
src/interfaces/ecpg/preproc/preproc.y
View File

@ -1,4 +1,4 @@
/* $Header: /cvsroot/pgsql/src/interfaces/ecpg/preproc/Attic/preproc.y,v 1.238 2003/06/25 10:44:21 meskes Exp $ */
/* $Header: /cvsroot/pgsql/src/interfaces/ecpg/preproc/Attic/preproc.y,v 1.239 2003/06/25 21:30:33 momjian Exp $ */
/* Copyright comment */
%{
@ -4599,7 +4599,7 @@ type_declaration: S_TYPEDEF
$3.type_enum != ECPGt_char &&
$3.type_enum != ECPGt_unsigned_char &&
atoi(this->type->type_index) >= 0)
mmerror(PARSE_ERROR, ET_ERROR, "No multidimensional array support for simple data types");
mmerror(PARSE_ERROR, ET_ERROR, "No multi-dimensional array support for simple data types");
types = this;
}
@ -5419,7 +5419,7 @@ ECPGTypedef: TYPE_P
$5.type_enum != ECPGt_char &&
$5.type_enum != ECPGt_unsigned_char &&
atoi(this->type->type_index) >= 0)
mmerror(PARSE_ERROR, ET_ERROR, "No multidimensional array support for simple data types");
mmerror(PARSE_ERROR, ET_ERROR, "No multi-dimensional array support for simple data types");
types = this;
}
@ -5486,7 +5486,7 @@ ECPGVar: SQL_VAR
default:
if (atoi(length) >= 0)
mmerror(PARSE_ERROR, ET_ERROR, "No multidimensional array support for simple data types");
mmerror(PARSE_ERROR, ET_ERROR, "No multi-dimensional array support for simple data types");
if (atoi(dimension) < 0)
type = ECPGmake_simple_type($5.type_enum, make_str("1"));

2
src/interfaces/ecpg/preproc/type.c
View File

@ -504,7 +504,7 @@ ECPGfree_type(struct ECPGtype * type)
switch (type->u.element->type)
{
case ECPGt_array:
yyerror("internal error, found multidimensional array\n");
yyerror("internal error, found multi-dimensional array\n");
break;
case ECPGt_struct:
case ECPGt_union:

12
src/interfaces/ecpg/preproc/variable.c
View File

@ -436,7 +436,7 @@ adjust_array(enum ECPGttype type_enum, char **dimension, char **length, char *ty
if (atoi(type_index) >= 0)
{
if (atoi(*length) >= 0)
mmerror(PARSE_ERROR, ET_FATAL, "No multidimensional array support");
mmerror(PARSE_ERROR, ET_FATAL, "No multi-dimensional array support");
*length = type_index;
}
@ -444,7 +444,7 @@ adjust_array(enum ECPGttype type_enum, char **dimension, char **length, char *ty
if (atoi(type_dimension) >= 0)
{
if (atoi(*dimension) >= 0 && atoi(*length) >= 0)
mmerror(PARSE_ERROR, ET_FATAL, "No multidimensional array support");
mmerror(PARSE_ERROR, ET_FATAL, "No multi-dimensional array support");
if (atoi(*dimension) >= 0)
*length = *dimension;
@ -463,10 +463,10 @@ adjust_array(enum ECPGttype type_enum, char **dimension, char **length, char *ty
mmerror(PARSE_ERROR, ET_FATAL, "No pointer to pointer supported for this type");
if (pointer_len > 1 && (atoi(*length) >= 0 || atoi(*dimension) >= 0))
mmerror(PARSE_ERROR, ET_FATAL, "No multidimensional array support");
mmerror(PARSE_ERROR, ET_FATAL, "No multi-dimensional array support");
if (atoi(*length) >= 0 && atoi(*dimension) >= 0 && pointer_len)
mmerror(PARSE_ERROR, ET_FATAL, "No multidimensional array support");
mmerror(PARSE_ERROR, ET_FATAL, "No multi-dimensional array support");
switch (type_enum)
{
@ -480,7 +480,7 @@ adjust_array(enum ECPGttype type_enum, char **dimension, char **length, char *ty
}
if (atoi(*length) >= 0)
mmerror(PARSE_ERROR, ET_FATAL, "No multidimensional array support for structures");
mmerror(PARSE_ERROR, ET_FATAL, "No multi-dimensional array support for structures");
break;
case ECPGt_varchar:
@ -525,7 +525,7 @@ adjust_array(enum ECPGttype type_enum, char **dimension, char **length, char *ty
}
if (atoi(*length) >= 0)
mmerror(PARSE_ERROR, ET_FATAL, "No multidimensional array support for simple data types");
mmerror(PARSE_ERROR, ET_FATAL, "No multi-dimensional array support for simple data types");
break;
}

28
src/test/regress/expected/arrays.out
View File

@ -178,13 +178,19 @@ SELECT ARRAY(select f2 from arrtest_f order by f2) AS "ARRAY";
(1 row)
-- functions
SELECT array_append(array[42], 6) AS "{42,6}";
SELECT singleton_array(42) AS "{42}";
{42}
------
{42}
(1 row)
SELECT array_append(singleton_array(42), 6) AS "{42,6}";
{42,6}
--------
{42,6}
(1 row)
SELECT array_prepend(6, array[42]) AS "{6,42}";
SELECT array_prepend(6, singleton_array(42)) AS "{6,42}";
{6,42}
--------
{6,42}
@ -208,6 +214,24 @@ SELECT array_cat(ARRAY[[3,4],[5,6]], ARRAY[1,2]) AS "{{3,4},{5,6},{1,2}}";
{{3,4},{5,6},{1,2}}
(1 row)
SELECT array_subscript(n, 2) AS "1.2" FROM arrtest2;
1.2
-----
1.2
(1 row)
SELECT array_assign(n, 2, 9.99) AS "{1.1,9.99,1.3}" FROM arrtest2;
{1.1,9.99,1.3}
----------------
{1.1,9.99,1.3}
(1 row)
SELECT array_subscript(array_assign(n, 2, 9.99), 2) AS "9.99" FROM arrtest2;
9.99
------
9.99
(1 row)
-- operators
SELECT a FROM arrtest WHERE b = ARRAY[[[113,142],[1,147]]];
a

8
src/test/regress/sql/arrays.sql
View File

@ -130,11 +130,15 @@ SELECT ARRAY[ARRAY['hello'],ARRAY['world']];
SELECT ARRAY(select f2 from arrtest_f order by f2) AS "ARRAY";
-- functions
SELECT array_append(array[42], 6) AS "{42,6}";
SELECT array_prepend(6, array[42]) AS "{6,42}";
SELECT singleton_array(42) AS "{42}";
SELECT array_append(singleton_array(42), 6) AS "{42,6}";
SELECT array_prepend(6, singleton_array(42)) AS "{6,42}";
SELECT array_cat(ARRAY[1,2], ARRAY[3,4]) AS "{{1,2},{3,4}}";
SELECT array_cat(ARRAY[1,2], ARRAY[[3,4],[5,6]]) AS "{{1,2},{3,4},{5,6}}";
SELECT array_cat(ARRAY[[3,4],[5,6]], ARRAY[1,2]) AS "{{3,4},{5,6},{1,2}}";
SELECT array_subscript(n, 2) AS "1.2" FROM arrtest2;
SELECT array_assign(n, 2, 9.99) AS "{1.1,9.99,1.3}" FROM arrtest2;
SELECT array_subscript(array_assign(n, 2, 9.99), 2) AS "9.99" FROM arrtest2;
-- operators
SELECT a FROM arrtest WHERE b = ARRAY[[[113,142],[1,147]]];