rdelaage
/
postgresql
mirror of https://git.postgresql.org/git/postgresql.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Add several generator functions for jsonb that exist for json. 

The functions are:
    to_jsonb()
    jsonb_object()
    jsonb_build_object()
    jsonb_build_array()
    jsonb_agg()
    jsonb_object_agg()

Also along the way some better logic is implemented in
json_categorize_type() to match that in the newly implemented
jsonb_categorize_type().

Andrew Dunstan, reviewed by Pavel Stehule and Alvaro Herrera.
This commit is contained in:
Andrew Dunstan 2014-12-12 15:31:14 -05:00
parent 8ec8760fc8
commit 7e354ab9fe
11 changed files with 2003 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

97
doc/src/sgml/func.sgml
View File

@ -10245,9 +10245,10 @@ table2-mapping
<para>
<xref linkend="functions-json-creation-table"> shows the functions that are
available for creating <type>json</type> values.
(Currently, there are no equivalent functions for <type>jsonb</>, but you
can cast the result of one of these functions to <type>jsonb</>.)
available for creating <type>json</type> and <type>jsonb</type> values.
(There are no equivalent functions for <type>jsonb</>, of the <literal>row_to_json</>
and <literal>array_to_json</> functions. However, the <literal>to_jsonb</>
function supplies much the same functionality as these functions would.)
</para>
<indexterm>
@ -10268,6 +10269,18 @@ table2-mapping
<indexterm>
<primary>json_object</primary>
</indexterm>
<indexterm>
<primary>to_jsonb</primary>
</indexterm>
<indexterm>
<primary>jsonb_build_array</primary>
</indexterm>
<indexterm>
<primary>jsonb_build_object</primary>
</indexterm>
<indexterm>
<primary>jsonb_object</primary>
</indexterm>
<table id="functions-json-creation-table">
<title>JSON Creation Functions</title>
@ -10282,17 +10295,18 @@ table2-mapping
</thead>
<tbody>
<row>
<entry><para><literal>to_json(anyelement)</literal>
</para><para><literal>to_jsonb(anyelement)</literal>
</para></entry>
<entry>
<literal>to_json(anyelement)</literal>
</entry>
<entry>
Returns the value as JSON. Arrays and composites are converted
Returns the value as <type>json</> or <type>jsonb</>.
Arrays and composites are converted
(recursively) to arrays and objects; otherwise, if there is a cast
from the type to <type>json</type>, the cast function will be used to
perform the conversion; otherwise, a JSON scalar value is produced.
perform the conversion; otherwise, a scalar value is produced.
For any scalar type other than a number, a Boolean, or a null value,
the text representation will be used, properly quoted and escaped
so that it is a valid JSON string.
the text representation will be used, in such a fashion that it is a
valid <type>json</> or <type>jsonb</> value.
</entry>
<entry><literal>to_json('Fred said "Hi."'::text)</literal></entry>
<entry><literal>"Fred said \"Hi.\""</literal></entry>
@ -10321,9 +10335,9 @@ table2-mapping
<entry><literal>{"f1":1,"f2":"foo"}</literal></entry>
</row>
<row>
<entry>
<literal>json_build_array(VARIADIC "any")</literal>
</entry>
<entry><para><literal>json_build_array(VARIADIC "any")</literal>
</para><para><literal>jsonb_build_array(VARIADIC "any")</literal>
</para></entry>
<entry>
Builds a possibly-heterogeneously-typed JSON array out of a variadic
argument list.
@ -10332,9 +10346,9 @@ table2-mapping
<entry><literal>[1, 2, "3", 4, 5]</literal></entry>
</row>
<row>
<entry>
<literal>json_build_object(VARIADIC "any")</literal>
</entry>
<entry><para><literal>json_build_object(VARIADIC "any")</literal>
</para><para><literal>jsonb_build_object(VARIADIC "any")</literal>
</para></entry>
<entry>
Builds a JSON object out of a variadic argument list. By
convention, the argument list consists of alternating
@ -10344,9 +10358,9 @@ table2-mapping
<entry><literal>{"foo": 1, "bar": 2}</literal></entry>
</row>
<row>
<entry>
<literal>json_object(text[])</literal>
</entry>
<entry><para><literal>json_object(text[])</literal>
</para><para><literal>jsonb_object(text[])</literal>
</para></entry>
<entry>
Builds a JSON object out of a text array. The array must have either
exactly one dimension with an even number of members, in which case
@ -10359,9 +10373,9 @@ table2-mapping
<entry><literal>{"a": "1", "b": "def", "c": "3.5"}</literal></entry>
</row>
<row>
<entry>
<literal>json_object(keys text[], values text[])</literal>
</entry>
<entry><para><literal>json_object(keys text[], values text[])</literal>
</para><para><literal>json_object(keys text[], values text[])</literal>
</para></entry>
<entry>
This form of <function>json_object</> takes keys and values pairwise from two separate
arrays. In all other respects it is identical to the one-argument form.
@ -10780,7 +10794,8 @@ table2-mapping
function <function>json_agg</function> which aggregates record
values as JSON, and the aggregate function
<function>json_object_agg</function> which aggregates pairs of values
into a JSON object.
into a JSON object, and their <type>jsonb</type> equivalents,
<function>jsonb_agg</> and <function>jsonb_object_agg</>.
</para>
</sect1>
@ -12224,6 +12239,22 @@ NULL baz</literallayout>(3 rows)</entry>
<entry>aggregates records as a JSON array of objects</entry>
</row>
<row>
<entry>
<indexterm>
<primary>jsonb_agg</primary>
</indexterm>
<function>jsonb_agg(<replaceable class="parameter">record</replaceable>)</function>
</entry>
<entry>
<type>record</type>
</entry>
<entry>
<type>jsonb</type>
</entry>
<entry>aggregates records as a JSON array of objects</entry>
</row>
<row>
<entry>
<indexterm>
@ -12240,6 +12271,22 @@ NULL baz</literallayout>(3 rows)</entry>
<entry>aggregates name/value pairs as a JSON object</entry>
</row>
<row>
<entry>
<indexterm>
<primary>jsonb_object_agg</primary>
</indexterm>
<function>jsonb_object_agg(<replaceable class="parameter">name</replaceable>, <replaceable class="parameter">value</replaceable>)</function>
</entry>
<entry>
<type>("any", "any")</type>
</entry>
<entry>
<type>jsonb</type>
</entry>
<entry>aggregates name/value pairs as a JSON object</entry>
</row>
<row>
<entry>
<indexterm>
@ -12386,8 +12433,8 @@ SELECT count(*) FROM sometable;
<para>
The aggregate functions <function>array_agg</function>,
<function>json_agg</function>,
<function>json_object_agg</function>,
<function>json_agg</function>, <function>jsonb_agg</function>,
<function>json_object_agg</function>, <function>jsonb_object_agg</function>,
<function>string_agg</function>,
and <function>xmlagg</function>, as well as similar user-defined
aggregate functions, produce meaningfully different result values

44
src/backend/utils/adt/json.c
View File

@ -15,7 +15,6 @@
#include "access/htup_details.h"
#include "access/transam.h"
#include "catalog/pg_cast.h"
#include "catalog/pg_type.h"
#include "executor/spi.h"
#include "lib/stringinfo.h"
@ -1281,10 +1280,14 @@ json_categorize_type(Oid typoid,
/* Look through any domain */
typoid = getBaseType(typoid);
/* We'll usually need to return the type output function */
getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
*outfuncoid = InvalidOid;
/*
* We need to get the output function for everything except date and
* timestamp types, array and composite types, booleans,
* and non-builtin types where there's a cast to json.
*/
/* Check for known types */
switch (typoid)
{
case BOOLOID:
@ -1297,6 +1300,7 @@ json_categorize_type(Oid typoid,
case FLOAT4OID:
case FLOAT8OID:
case NUMERICOID:
getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
*tcategory = JSONTYPE_NUMERIC;
break;
@ -1314,6 +1318,7 @@ json_categorize_type(Oid typoid,
case JSONOID:
case JSONBOID:
getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
*tcategory = JSONTYPE_JSON;
break;
@ -1330,23 +1335,26 @@ json_categorize_type(Oid typoid,
/* but let's look for a cast to json, if it's not built-in */
if (typoid >= FirstNormalObjectId)
{
HeapTuple tuple;
Oid castfunc;
CoercionPathType ctype;
tuple = SearchSysCache2(CASTSOURCETARGET,
ObjectIdGetDatum(typoid),
ObjectIdGetDatum(JSONOID));
if (HeapTupleIsValid(tuple))
ctype = find_coercion_pathway(JSONOID, typoid,
COERCION_EXPLICIT, &castfunc);
if (ctype == COERCION_PATH_FUNC && OidIsValid(castfunc))
{
Form_pg_cast castForm = (Form_pg_cast) GETSTRUCT(tuple);
if (castForm->castmethod == COERCION_METHOD_FUNCTION)
{
*tcategory = JSONTYPE_CAST;
*outfuncoid = castForm->castfunc;
}
ReleaseSysCache(tuple);
*tcategory = JSONTYPE_CAST;
*outfuncoid = castfunc;
}
else
{
/* non builtin type with no cast */
getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
}
}
else
{
/* any other builtin type */
getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
}
}
break;

1396
src/backend/utils/adt/jsonb.c
View File

File diff suppressed because it is too large Load Diff

2
src/backend/utils/adt/jsonb_util.c
View File

@ -1427,7 +1427,7 @@ convertJsonbValue(StringInfo buffer, JEntry *header, JsonbValue *val, int level)
else if (val->type == jbvObject)
convertJsonbObject(buffer, header, val, level);
else
elog(ERROR, "unknown type of jsonb container");
elog(ERROR, "unknown type of jsonb container to convert");
}
static void

2
src/include/catalog/catversion.h
View File

@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201412121
#define CATALOG_VERSION_NO 201412122
#endif

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

@ -287,6 +287,10 @@ DATA(insert ( 3545 n 0 bytea_string_agg_transfn bytea_string_agg_finalfn - -
DATA(insert ( 3175 n 0 json_agg_transfn json_agg_finalfn - - - f f 0 2281 0 0 0 _null_ _null_ ));
DATA(insert ( 3197 n 0 json_object_agg_transfn json_object_agg_finalfn - - - f f 0 2281 0 0 0 _null_ _null_ ));
/* jsonb */
DATA(insert ( 3267 n 0 jsonb_agg_transfn jsonb_agg_finalfn - - - f f 0 2281 0 0 0 _null_ _null_ ));
DATA(insert ( 3270 n 0 jsonb_object_agg_transfn jsonb_object_agg_finalfn - - - f f 0 2281 0 0 0 _null_ _null_ ));
/* ordered-set and hypothetical-set aggregates */
DATA(insert ( 3972 o 1 ordered_set_transition percentile_disc_final - - - t f 0 2281 0 0 0 _null_ _null_ ));
DATA(insert ( 3974 o 1 ordered_set_transition percentile_cont_float8_final - - - f f 0 2281 0 0 0 _null_ _null_ ));

26
src/include/catalog/pg_proc.h
View File

@ -4656,6 +4656,32 @@ DESCR("I/O");
DATA(insert OID = 3803 ( jsonb_send PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 17 "3802" _null_ _null_ _null_ _null_ jsonb_send _null_ _null_ _null_ ));
DESCR("I/O");
DATA(insert OID = 3263 ( jsonb_object PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 3802 "1009" _null_ _null_ _null_ _null_ jsonb_object _null_ _null_ _null_ ));
DESCR("map text array of key value pairs to jsonb object");
DATA(insert OID = 3264 ( jsonb_object PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 3802 "1009 1009" _null_ _null_ _null_ _null_ jsonb_object_two_arg _null_ _null_ _null_ ));
DESCR("map text array of key value pairs to jsonb object");
DATA(insert OID = 3787 ( to_jsonb PGNSP PGUID 12 1 0 0 0 f f f f t f s 1 0 3802 "2283" _null_ _null_ _null_ _null_ to_jsonb _null_ _null_ _null_ ));
DESCR("map input to jsonb");
DATA(insert OID = 3265 ( jsonb_agg_transfn PGNSP PGUID 12 1 0 0 0 f f f f f f s 2 0 2281 "2281 2283" _null_ _null_ _null_ _null_ jsonb_agg_transfn _null_ _null_ _null_ ));
DESCR("jsonb aggregate transition function");
DATA(insert OID = 3266 ( jsonb_agg_finalfn PGNSP PGUID 12 1 0 0 0 f f f f f f s 1 0 3802 "2281" _null_ _null_ _null_ _null_ jsonb_agg_finalfn _null_ _null_ _null_ ));
DESCR("jsonb aggregate final function");
DATA(insert OID = 3267 ( jsonb_agg PGNSP PGUID 12 1 0 0 0 t f f f f f s 1 0 3802 "2283" _null_ _null_ _null_ _null_ aggregate_dummy _null_ _null_ _null_ ));
DESCR("aggregate input into jsonb");
DATA(insert OID = 3268 ( jsonb_object_agg_transfn PGNSP PGUID 12 1 0 0 0 f f f f f f s 3 0 2281 "2281 2276 2276" _null_ _null_ _null_ _null_ jsonb_object_agg_transfn _null_ _null_ _null_ ));
DESCR("jsonb object aggregate transition function");
DATA(insert OID = 3269 ( jsonb_object_agg_finalfn PGNSP PGUID 12 1 0 0 0 f f f f f f s 1 0 3802 "2281" _null_ _null_ _null_ _null_ jsonb_object_agg_finalfn _null_ _null_ _null_ ));
DESCR("jsonb object aggregate final function");
DATA(insert OID = 3270 ( jsonb_object_agg PGNSP PGUID 12 1 0 0 0 t f f f f f i 2 0 3802 "2276 2276" _null_ _null_ _null_ _null_ aggregate_dummy _null_ _null_ _null_ ));
DESCR("aggregate inputs into jsonb object");
DATA(insert OID = 3271 ( jsonb_build_array PGNSP PGUID 12 1 0 2276 0 f f f f f f s 1 0 3802 "2276" "{2276}" "{v}" _null_ _null_ jsonb_build_array _null_ _null_ _null_ ));
DESCR("build a jsonb array from any inputs");
DATA(insert OID = 3272 ( jsonb_build_array PGNSP PGUID 12 1 0 0 0 f f f f f f s 0 0 3802 "" _null_ _null_ _null_ _null_ jsonb_build_array_noargs _null_ _null_ _null_ ));
DESCR("build an empty jsonb array");
DATA(insert OID = 3273 ( jsonb_build_object PGNSP PGUID 12 1 0 2276 0 f f f f f f s 1 0 3802 "2276" "{2276}" "{v}" _null_ _null_ jsonb_build_object _null_ _null_ _null_ ));
DESCR("build a jsonb object from pairwise key/value inputs");
DATA(insert OID = 3274 ( jsonb_build_object PGNSP PGUID 12 1 0 0 0 f f f f f f s 0 0 3802 "" _null_ _null_ _null_ _null_ jsonb_build_object_noargs _null_ _null_ _null_ ));
DESCR("build an empty jsonb object");
DATA(insert OID = 3262 ( jsonb_strip_nulls PGNSP PGUID 12 1 0 0 0 f f f f t f i 1 0 3802 "3802" _null_ _null_ _null_ _null_ jsonb_strip_nulls _null_ _null_ _null_ ));
DESCR("remove object fields with null values from jsonb");

16
src/include/utils/jsonb.h
View File

@ -350,6 +350,22 @@ extern Datum jsonb_recv(PG_FUNCTION_ARGS);
extern Datum jsonb_send(PG_FUNCTION_ARGS);
extern Datum jsonb_typeof(PG_FUNCTION_ARGS);
/* generator routines */
extern Datum to_jsonb(PG_FUNCTION_ARGS);
extern Datum jsonb_build_object(PG_FUNCTION_ARGS);
extern Datum jsonb_build_object_noargs(PG_FUNCTION_ARGS);
extern Datum jsonb_build_array(PG_FUNCTION_ARGS);
extern Datum jsonb_build_array_noargs(PG_FUNCTION_ARGS);
extern Datum jsonb_object(PG_FUNCTION_ARGS);
extern Datum jsonb_object_two_arg(PG_FUNCTION_ARGS);
/* jsonb_agg, json_object_agg functions */
extern Datum jsonb_agg_transfn(PG_FUNCTION_ARGS);
extern Datum jsonb_agg_finalfn(PG_FUNCTION_ARGS);
extern Datum jsonb_object_agg_transfn(PG_FUNCTION_ARGS);
extern Datum jsonb_object_agg_finalfn(PG_FUNCTION_ARGS);
/* Indexing-related ops */
extern Datum jsonb_exists(PG_FUNCTION_ARGS);
extern Datum jsonb_exists_any(PG_FUNCTION_ARGS);

173
src/test/regress/expected/jsonb.out
View File

@ -301,6 +301,65 @@ SELECT array_to_json(ARRAY [jsonb '{"a":1}', jsonb '{"b":[2,3]}']);
[{"a": 1},{"b": [2, 3]}]
(1 row)
-- to_jsonb, timestamps
select to_jsonb(timestamp '2014-05-28 12:22:35.614298');
to_jsonb
------------------------------
"2014-05-28T12:22:35.614298"
(1 row)
BEGIN;
SET LOCAL TIME ZONE 10.5;
select to_jsonb(timestamptz '2014-05-28 12:22:35.614298-04');
to_jsonb
------------------------------------
"2014-05-29T02:52:35.614298+10:30"
(1 row)
SET LOCAL TIME ZONE -8;
select to_jsonb(timestamptz '2014-05-28 12:22:35.614298-04');
to_jsonb
------------------------------------
"2014-05-28T08:22:35.614298-08:00"
(1 row)
COMMIT;
-- unicode escape - backslash is not escaped
select to_jsonb(text '\uabcd');
to_jsonb
----------
"\uabcd"
(1 row)
-- any other backslash is escaped
select to_jsonb(text '\abcd');
to_jsonb
----------
"\\abcd"
(1 row)
--jsonb_agg
CREATE TEMP TABLE rows AS
SELECT x, 'txt' || x as y
FROM generate_series(1,3) AS x;
SELECT jsonb_agg(q)
FROM ( SELECT $$a$$ || x AS b, y AS c,
ARRAY[ROW(x.*,ARRAY[1,2,3]),
ROW(y.*,ARRAY[4,5,6])] AS z
FROM generate_series(1,2) x,
generate_series(4,5) y) q;
jsonb_agg
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[{"b": "a1", "c": 4, "z": [{"f1": 1, "f2": [1, 2, 3]}, {"f1": 4, "f2": [4, 5, 6]}]}, {"b": "a1", "c": 5, "z": [{"f1": 1, "f2": [1, 2, 3]}, {"f1": 5, "f2": [4, 5, 6]}]}, {"b": "a2", "c": 4, "z": [{"f1": 2, "f2": [1, 2, 3]}, {"f1": 4, "f2": [4, 5, 6]}]}, {"b": "a2", "c": 5, "z": [{"f1": 2, "f2": [1, 2, 3]}, {"f1": 5, "f2": [4, 5, 6]}]}]
(1 row)
SELECT jsonb_agg(q)
FROM rows q;
jsonb_agg
-----------------------------------------------------------------------
[{"x": 1, "y": "txt1"}, {"x": 2, "y": "txt2"}, {"x": 3, "y": "txt3"}]
(1 row)
-- jsonb extraction functions
CREATE TEMP TABLE test_jsonb (
json_type text,
@ -1256,6 +1315,120 @@ SELECT jsonb_typeof('"1.0"') AS string;
string
(1 row)
-- jsonb_build_array, jsonb_build_object, jsonb_object_agg
SELECT jsonb_build_array('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
jsonb_build_array
-------------------------------------------------------------------------
["a", 1, "b", 1.2, "c", true, "d", null, "e", {"x": 3, "y": [1, 2, 3]}]
(1 row)
SELECT jsonb_build_object('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
jsonb_build_object
-------------------------------------------------------------------------
{"a": 1, "b": 1.2, "c": true, "d": null, "e": {"x": 3, "y": [1, 2, 3]}}
(1 row)
SELECT jsonb_build_object(
'a', jsonb_build_object('b',false,'c',99),
'd', jsonb_build_object('e',array[9,8,7]::int[],
'f', (select row_to_json(r) from ( select relkind, oid::regclass as name from pg_class where relname = 'pg_class') r)));
jsonb_build_object
------------------------------------------------------------------------------------------------
{"a": {"b": false, "c": 99}, "d": {"e": [9, 8, 7], "f": {"name": "pg_class", "relkind": "r"}}}
(1 row)
-- empty objects/arrays
SELECT jsonb_build_array();
jsonb_build_array
-------------------
[]
(1 row)
SELECT jsonb_build_object();
jsonb_build_object
--------------------
{}
(1 row)
-- make sure keys are quoted
SELECT jsonb_build_object(1,2);
jsonb_build_object
--------------------
{"1": 2}
(1 row)
-- keys must be scalar and not null
SELECT jsonb_build_object(null,2);
ERROR: arg 1: key cannot be null
SELECT jsonb_build_object(r,2) FROM (SELECT 1 AS a, 2 AS b) r;
ERROR: key value must be scalar, not array, composite or json
SELECT jsonb_build_object(json '{"a":1,"b":2}', 3);
ERROR: key value must be scalar, not array, composite or json
SELECT jsonb_build_object('{1,2,3}'::int[], 3);
ERROR: key value must be scalar, not array, composite or json
CREATE TEMP TABLE foo (serial_num int, name text, type text);
INSERT INTO foo VALUES (847001,'t15','GE1043');
INSERT INTO foo VALUES (847002,'t16','GE1043');
INSERT INTO foo VALUES (847003,'sub-alpha','GESS90');
SELECT jsonb_build_object('turbines',jsonb_object_agg(serial_num,jsonb_build_object('name',name,'type',type)))
FROM foo;
jsonb_build_object
-------------------------------------------------------------------------------------------------------------------------------------------------------------
{"turbines": {"847001": {"name": "t15", "type": "GE1043"}, "847002": {"name": "t16", "type": "GE1043"}, "847003": {"name": "sub-alpha", "type": "GESS90"}}}
(1 row)
-- jsonb_object
-- one dimension
SELECT jsonb_object('{a,1,b,2,3,NULL,"d e f","a b c"}');
jsonb_object
---------------------------------------------------
{"3": null, "a": "1", "b": "2", "d e f": "a b c"}
(1 row)
-- same but with two dimensions
SELECT jsonb_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
jsonb_object
---------------------------------------------------
{"3": null, "a": "1", "b": "2", "d e f": "a b c"}
(1 row)
-- odd number error
SELECT jsonb_object('{a,b,c}');
ERROR: array must have even number of elements
-- one column error
SELECT jsonb_object('{{a},{b}}');
ERROR: array must have two columns
-- too many columns error
SELECT jsonb_object('{{a,b,c},{b,c,d}}');
ERROR: array must have two columns
-- too many dimensions error
SELECT jsonb_object('{{{a,b},{c,d}},{{b,c},{d,e}}}');
ERROR: wrong number of array subscripts
--two argument form of jsonb_object
select jsonb_object('{a,b,c,"d e f"}','{1,2,3,"a b c"}');
jsonb_object
--------------------------------------------------
{"a": "1", "b": "2", "c": "3", "d e f": "a b c"}
(1 row)
-- too many dimensions
SELECT jsonb_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}', '{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
ERROR: wrong number of array subscripts
-- mismatched dimensions
select jsonb_object('{a,b,c,"d e f",g}','{1,2,3,"a b c"}');
ERROR: mismatched array dimensions
select jsonb_object('{a,b,c,"d e f"}','{1,2,3,"a b c",g}');
ERROR: mismatched array dimensions
-- null key error
select jsonb_object('{a,b,NULL,"d e f"}','{1,2,3,"a b c"}');
ERROR: null value not allowed for object key
-- empty key is allowed
select jsonb_object('{a,b,"","d e f"}','{1,2,3,"a b c"}');
jsonb_object
-------------------------------------------------
{"": "3", "a": "1", "b": "2", "d e f": "a b c"}
(1 row)
-- extract_path, extract_path_as_text
SELECT jsonb_extract_path('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f4','f6');
jsonb_extract_path

173
src/test/regress/expected/jsonb_1.out
View File

@ -301,6 +301,65 @@ SELECT array_to_json(ARRAY [jsonb '{"a":1}', jsonb '{"b":[2,3]}']);
[{"a": 1},{"b": [2, 3]}]
(1 row)
-- to_jsonb, timestamps
select to_jsonb(timestamp '2014-05-28 12:22:35.614298');
to_jsonb
------------------------------
"2014-05-28T12:22:35.614298"
(1 row)
BEGIN;
SET LOCAL TIME ZONE 10.5;
select to_jsonb(timestamptz '2014-05-28 12:22:35.614298-04');
to_jsonb
------------------------------------
"2014-05-29T02:52:35.614298+10:30"
(1 row)
SET LOCAL TIME ZONE -8;
select to_jsonb(timestamptz '2014-05-28 12:22:35.614298-04');
to_jsonb
------------------------------------
"2014-05-28T08:22:35.614298-08:00"
(1 row)
COMMIT;
-- unicode escape - backslash is not escaped
select to_jsonb(text '\uabcd');
to_jsonb
----------
"\uabcd"
(1 row)
-- any other backslash is escaped
select to_jsonb(text '\abcd');
to_jsonb
----------
"\\abcd"
(1 row)
--jsonb_agg
CREATE TEMP TABLE rows AS
SELECT x, 'txt' || x as y
FROM generate_series(1,3) AS x;
SELECT jsonb_agg(q)
FROM ( SELECT $$a$$ || x AS b, y AS c,
ARRAY[ROW(x.*,ARRAY[1,2,3]),
ROW(y.*,ARRAY[4,5,6])] AS z
FROM generate_series(1,2) x,
generate_series(4,5) y) q;
jsonb_agg
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[{"b": "a1", "c": 4, "z": [{"f1": 1, "f2": [1, 2, 3]}, {"f1": 4, "f2": [4, 5, 6]}]}, {"b": "a1", "c": 5, "z": [{"f1": 1, "f2": [1, 2, 3]}, {"f1": 5, "f2": [4, 5, 6]}]}, {"b": "a2", "c": 4, "z": [{"f1": 2, "f2": [1, 2, 3]}, {"f1": 4, "f2": [4, 5, 6]}]}, {"b": "a2", "c": 5, "z": [{"f1": 2, "f2": [1, 2, 3]}, {"f1": 5, "f2": [4, 5, 6]}]}]
(1 row)
SELECT jsonb_agg(q)
FROM rows q;
jsonb_agg
-----------------------------------------------------------------------
[{"x": 1, "y": "txt1"}, {"x": 2, "y": "txt2"}, {"x": 3, "y": "txt3"}]
(1 row)
-- jsonb extraction functions
CREATE TEMP TABLE test_jsonb (
json_type text,
@ -1256,6 +1315,120 @@ SELECT jsonb_typeof('"1.0"') AS string;
string
(1 row)
-- jsonb_build_array, jsonb_build_object, jsonb_object_agg
SELECT jsonb_build_array('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
jsonb_build_array
-------------------------------------------------------------------------
["a", 1, "b", 1.2, "c", true, "d", null, "e", {"x": 3, "y": [1, 2, 3]}]
(1 row)
SELECT jsonb_build_object('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
jsonb_build_object
-------------------------------------------------------------------------
{"a": 1, "b": 1.2, "c": true, "d": null, "e": {"x": 3, "y": [1, 2, 3]}}
(1 row)
SELECT jsonb_build_object(
'a', jsonb_build_object('b',false,'c',99),
'd', jsonb_build_object('e',array[9,8,7]::int[],
'f', (select row_to_json(r) from ( select relkind, oid::regclass as name from pg_class where relname = 'pg_class') r)));
jsonb_build_object
------------------------------------------------------------------------------------------------
{"a": {"b": false, "c": 99}, "d": {"e": [9, 8, 7], "f": {"name": "pg_class", "relkind": "r"}}}
(1 row)
-- empty objects/arrays
SELECT jsonb_build_array();
jsonb_build_array
-------------------
[]
(1 row)
SELECT jsonb_build_object();
jsonb_build_object
--------------------
{}
(1 row)
-- make sure keys are quoted
SELECT jsonb_build_object(1,2);
jsonb_build_object
--------------------
{"1": 2}
(1 row)
-- keys must be scalar and not null
SELECT jsonb_build_object(null,2);
ERROR: arg 1: key cannot be null
SELECT jsonb_build_object(r,2) FROM (SELECT 1 AS a, 2 AS b) r;
ERROR: key value must be scalar, not array, composite or json
SELECT jsonb_build_object(json '{"a":1,"b":2}', 3);
ERROR: key value must be scalar, not array, composite or json
SELECT jsonb_build_object('{1,2,3}'::int[], 3);
ERROR: key value must be scalar, not array, composite or json
CREATE TEMP TABLE foo (serial_num int, name text, type text);
INSERT INTO foo VALUES (847001,'t15','GE1043');
INSERT INTO foo VALUES (847002,'t16','GE1043');
INSERT INTO foo VALUES (847003,'sub-alpha','GESS90');
SELECT jsonb_build_object('turbines',jsonb_object_agg(serial_num,jsonb_build_object('name',name,'type',type)))
FROM foo;
jsonb_build_object
-------------------------------------------------------------------------------------------------------------------------------------------------------------
{"turbines": {"847001": {"name": "t15", "type": "GE1043"}, "847002": {"name": "t16", "type": "GE1043"}, "847003": {"name": "sub-alpha", "type": "GESS90"}}}
(1 row)
-- jsonb_object
-- one dimension
SELECT jsonb_object('{a,1,b,2,3,NULL,"d e f","a b c"}');
jsonb_object
---------------------------------------------------
{"3": null, "a": "1", "b": "2", "d e f": "a b c"}
(1 row)
-- same but with two dimensions
SELECT jsonb_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
jsonb_object
---------------------------------------------------
{"3": null, "a": "1", "b": "2", "d e f": "a b c"}
(1 row)
-- odd number error
SELECT jsonb_object('{a,b,c}');
ERROR: array must have even number of elements
-- one column error
SELECT jsonb_object('{{a},{b}}');
ERROR: array must have two columns
-- too many columns error
SELECT jsonb_object('{{a,b,c},{b,c,d}}');
ERROR: array must have two columns
-- too many dimensions error
SELECT jsonb_object('{{{a,b},{c,d}},{{b,c},{d,e}}}');
ERROR: wrong number of array subscripts
--two argument form of jsonb_object
select jsonb_object('{a,b,c,"d e f"}','{1,2,3,"a b c"}');
jsonb_object
--------------------------------------------------
{"a": "1", "b": "2", "c": "3", "d e f": "a b c"}
(1 row)
-- too many dimensions
SELECT jsonb_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}', '{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
ERROR: wrong number of array subscripts
-- mismatched dimensions
select jsonb_object('{a,b,c,"d e f",g}','{1,2,3,"a b c"}');
ERROR: mismatched array dimensions
select jsonb_object('{a,b,c,"d e f"}','{1,2,3,"a b c",g}');
ERROR: mismatched array dimensions
-- null key error
select jsonb_object('{a,b,NULL,"d e f"}','{1,2,3,"a b c"}');
ERROR: null value not allowed for object key
-- empty key is allowed
select jsonb_object('{a,b,"","d e f"}','{1,2,3,"a b c"}');
jsonb_object
-------------------------------------------------
{"": "3", "a": "1", "b": "2", "d e f": "a b c"}
(1 row)
-- extract_path, extract_path_as_text
SELECT jsonb_extract_path('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f4','f6');
jsonb_extract_path

115
src/test/regress/sql/jsonb.sql
View File

@ -62,6 +62,41 @@ SELECT ' '::jsonb; -- ERROR, no value
-- make sure jsonb is passed through json generators without being escaped
SELECT array_to_json(ARRAY [jsonb '{"a":1}', jsonb '{"b":[2,3]}']);
-- to_jsonb, timestamps
select to_jsonb(timestamp '2014-05-28 12:22:35.614298');
BEGIN;
SET LOCAL TIME ZONE 10.5;
select to_jsonb(timestamptz '2014-05-28 12:22:35.614298-04');
SET LOCAL TIME ZONE -8;
select to_jsonb(timestamptz '2014-05-28 12:22:35.614298-04');
COMMIT;
-- unicode escape - backslash is not escaped
select to_jsonb(text '\uabcd');
-- any other backslash is escaped
select to_jsonb(text '\abcd');
--jsonb_agg
CREATE TEMP TABLE rows AS
SELECT x, 'txt' || x as y
FROM generate_series(1,3) AS x;
SELECT jsonb_agg(q)
FROM ( SELECT $$a$$ || x AS b, y AS c,
ARRAY[ROW(x.*,ARRAY[1,2,3]),
ROW(y.*,ARRAY[4,5,6])] AS z
FROM generate_series(1,2) x,
generate_series(4,5) y) q;
SELECT jsonb_agg(q)
FROM rows q;
-- jsonb extraction functions
CREATE TEMP TABLE test_jsonb (
json_type text,
@ -263,6 +298,86 @@ SELECT jsonb_typeof('"hello"') AS string;
SELECT jsonb_typeof('"true"') AS string;
SELECT jsonb_typeof('"1.0"') AS string;
-- jsonb_build_array, jsonb_build_object, jsonb_object_agg
SELECT jsonb_build_array('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
SELECT jsonb_build_object('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
SELECT jsonb_build_object(
'a', jsonb_build_object('b',false,'c',99),
'd', jsonb_build_object('e',array[9,8,7]::int[],
'f', (select row_to_json(r) from ( select relkind, oid::regclass as name from pg_class where relname = 'pg_class') r)));
-- empty objects/arrays
SELECT jsonb_build_array();
SELECT jsonb_build_object();
-- make sure keys are quoted
SELECT jsonb_build_object(1,2);
-- keys must be scalar and not null
SELECT jsonb_build_object(null,2);
SELECT jsonb_build_object(r,2) FROM (SELECT 1 AS a, 2 AS b) r;
SELECT jsonb_build_object(json '{"a":1,"b":2}', 3);
SELECT jsonb_build_object('{1,2,3}'::int[], 3);
CREATE TEMP TABLE foo (serial_num int, name text, type text);
INSERT INTO foo VALUES (847001,'t15','GE1043');
INSERT INTO foo VALUES (847002,'t16','GE1043');
INSERT INTO foo VALUES (847003,'sub-alpha','GESS90');
SELECT jsonb_build_object('turbines',jsonb_object_agg(serial_num,jsonb_build_object('name',name,'type',type)))
FROM foo;
-- jsonb_object
-- one dimension
SELECT jsonb_object('{a,1,b,2,3,NULL,"d e f","a b c"}');
-- same but with two dimensions
SELECT jsonb_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
-- odd number error
SELECT jsonb_object('{a,b,c}');
-- one column error
SELECT jsonb_object('{{a},{b}}');
-- too many columns error
SELECT jsonb_object('{{a,b,c},{b,c,d}}');
-- too many dimensions error
SELECT jsonb_object('{{{a,b},{c,d}},{{b,c},{d,e}}}');
--two argument form of jsonb_object
select jsonb_object('{a,b,c,"d e f"}','{1,2,3,"a b c"}');
-- too many dimensions
SELECT jsonb_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}', '{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
-- mismatched dimensions
select jsonb_object('{a,b,c,"d e f",g}','{1,2,3,"a b c"}');
select jsonb_object('{a,b,c,"d e f"}','{1,2,3,"a b c",g}');
-- null key error
select jsonb_object('{a,b,NULL,"d e f"}','{1,2,3,"a b c"}');
-- empty key is allowed
select jsonb_object('{a,b,"","d e f"}','{1,2,3,"a b c"}');
-- extract_path, extract_path_as_text
SELECT jsonb_extract_path('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f4','f6');
SELECT jsonb_extract_path('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f2');