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postgresql/contrib/hstore/expected/hstore.out
Tom Lane c9d5298485 Re-implement pl/pgsql's expression and assignment parsing. 
Invent new RawParseModes that allow the core grammar to handle
pl/pgsql expressions and assignments directly, and thereby get rid
of a lot of hackery in pl/pgsql's parser.  This moves a good deal
of knowledge about pl/pgsql into the core code: notably, we have to
invent a CoercionContext that matches pl/pgsql's (rather dubious)
historical behavior for assignment coercions.  That's getting away
from the original idea of pl/pgsql as an arm's-length extension of
the core, but really we crossed that bridge a long time ago.

The main advantage of doing this is that we can now use the core
parser to generate FieldStore and/or SubscriptingRef nodes to handle
assignments to pl/pgsql variables that are records or arrays.  That
fixes a number of cases that had never been implemented in pl/pgsql
assignment, such as nested records and array slicing, and it allows
pl/pgsql assignment to support the datatype-specific subscripting
behaviors introduced in commit c7aba7c14.

There are cosmetic benefits too: when a syntax error occurs in a
pl/pgsql expression, the error report no longer includes the confusing
"SELECT" keyword that used to get prefixed to the expression text.
Also, there seem to be some small speed gains.

Discussion: https://postgr.es/m/4165684.1607707277@sss.pgh.pa.us
2021-01-04 11:52:00 -05:00

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CREATE EXTENSION hstore;
-- Check whether any of our opclasses fail amvalidate
SELECT amname, opcname
FROM pg_opclass opc LEFT JOIN pg_am am ON am.oid = opcmethod
WHERE opc.oid >= 16384 AND NOT amvalidate(opc.oid);
amname | opcname
--------+---------
(0 rows)
set escape_string_warning=off;
--hstore;
select ''::hstore;
hstore
--------
(1 row)
select 'a=>b'::hstore;
hstore
----------
"a"=>"b"
(1 row)
select ' a=>b'::hstore;
hstore
----------
"a"=>"b"
(1 row)
select 'a =>b'::hstore;
hstore
----------
"a"=>"b"
(1 row)
select 'a=>b '::hstore;
hstore
----------
"a"=>"b"
(1 row)
select 'a=> b'::hstore;
hstore
----------
"a"=>"b"
(1 row)
select '"a"=>"b"'::hstore;
hstore
----------
"a"=>"b"
(1 row)
select ' "a"=>"b"'::hstore;
hstore
----------
"a"=>"b"
(1 row)
select '"a" =>"b"'::hstore;
hstore
----------
"a"=>"b"
(1 row)
select '"a"=>"b" '::hstore;
hstore
----------
"a"=>"b"
(1 row)
select '"a"=> "b"'::hstore;
hstore
----------
"a"=>"b"
(1 row)
select 'aa=>bb'::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select ' aa=>bb'::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select 'aa =>bb'::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select 'aa=>bb '::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select 'aa=> bb'::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select '"aa"=>"bb"'::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select ' "aa"=>"bb"'::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select '"aa" =>"bb"'::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select '"aa"=>"bb" '::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select '"aa"=> "bb"'::hstore;
hstore
------------
"aa"=>"bb"
(1 row)
select 'aa=>bb, cc=>dd'::hstore;
hstore
------------------------
"aa"=>"bb", "cc"=>"dd"
(1 row)
select 'aa=>bb , cc=>dd'::hstore;
hstore
------------------------
"aa"=>"bb", "cc"=>"dd"
(1 row)
select 'aa=>bb ,cc=>dd'::hstore;
hstore
------------------------
"aa"=>"bb", "cc"=>"dd"
(1 row)
select 'aa=>bb, "cc"=>dd'::hstore;
hstore
------------------------
"aa"=>"bb", "cc"=>"dd"
(1 row)
select 'aa=>bb , "cc"=>dd'::hstore;
hstore
------------------------
"aa"=>"bb", "cc"=>"dd"
(1 row)
select 'aa=>bb ,"cc"=>dd'::hstore;
hstore
------------------------
"aa"=>"bb", "cc"=>"dd"
(1 row)
select 'aa=>"bb", cc=>dd'::hstore;
hstore
------------------------
"aa"=>"bb", "cc"=>"dd"
(1 row)
select 'aa=>"bb" , cc=>dd'::hstore;
hstore
------------------------
"aa"=>"bb", "cc"=>"dd"
(1 row)
select 'aa=>"bb" ,cc=>dd'::hstore;
hstore
------------------------
"aa"=>"bb", "cc"=>"dd"
(1 row)
select 'aa=>null'::hstore;
hstore
------------
"aa"=>NULL
(1 row)
select 'aa=>NuLl'::hstore;
hstore
------------
"aa"=>NULL
(1 row)
select 'aa=>"NuLl"'::hstore;
hstore
--------------
"aa"=>"NuLl"
(1 row)
select e'\\=a=>q=w'::hstore;
hstore
-------------
"=a"=>"q=w"
(1 row)
select e'"=a"=>q\\=w'::hstore;
hstore
-------------
"=a"=>"q=w"
(1 row)
select e'"\\"a"=>q>w'::hstore;
hstore
--------------
"\"a"=>"q>w"
(1 row)
select e'\\"a=>q"w'::hstore;
hstore
---------------
"\"a"=>"q\"w"
(1 row)
select ''::hstore;
hstore
--------
(1 row)
select ' '::hstore;
hstore
--------
(1 row)
-- -> operator
select 'aa=>b, c=>d , b=>16'::hstore->'c';
?column?
----------
d
(1 row)
select 'aa=>b, c=>d , b=>16'::hstore->'b';
?column?
----------
16
(1 row)
select 'aa=>b, c=>d , b=>16'::hstore->'aa';
?column?
----------
b
(1 row)
select ('aa=>b, c=>d , b=>16'::hstore->'gg') is null;
?column?
----------
t
(1 row)
select ('aa=>NULL, c=>d , b=>16'::hstore->'aa') is null;
?column?
----------
t
(1 row)
select ('aa=>"NULL", c=>d , b=>16'::hstore->'aa') is null;
?column?
----------
f
(1 row)
-- -> array operator
select 'aa=>"NULL", c=>d , b=>16'::hstore -> ARRAY['aa','c'];
?column?
------------
{"NULL",d}
(1 row)
select 'aa=>"NULL", c=>d , b=>16'::hstore -> ARRAY['c','aa'];
?column?
------------
{d,"NULL"}
(1 row)
select 'aa=>NULL, c=>d , b=>16'::hstore -> ARRAY['aa','c',null];
?column?
---------------
{NULL,d,NULL}
(1 row)
select 'aa=>1, c=>3, b=>2, d=>4'::hstore -> ARRAY[['b','d'],['aa','c']];
?column?
---------------
{{2,4},{1,3}}
(1 row)
-- exists/defined
select exist('a=>NULL, b=>qq', 'a');
exist
-------
t
(1 row)
select exist('a=>NULL, b=>qq', 'b');
exist
-------
t
(1 row)
select exist('a=>NULL, b=>qq', 'c');
exist
-------
f
(1 row)
select exist('a=>"NULL", b=>qq', 'a');
exist
-------
t
(1 row)
select defined('a=>NULL, b=>qq', 'a');
defined
---------
f
(1 row)
select defined('a=>NULL, b=>qq', 'b');
defined
---------
t
(1 row)
select defined('a=>NULL, b=>qq', 'c');
defined
---------
f
(1 row)
select defined('a=>"NULL", b=>qq', 'a');
defined
---------
t
(1 row)
select hstore 'a=>NULL, b=>qq' ? 'a';
?column?
----------
t
(1 row)
select hstore 'a=>NULL, b=>qq' ? 'b';
?column?
----------
t
(1 row)
select hstore 'a=>NULL, b=>qq' ? 'c';
?column?
----------
f
(1 row)
select hstore 'a=>"NULL", b=>qq' ? 'a';
?column?
----------
t
(1 row)
select hstore 'a=>NULL, b=>qq' ?| ARRAY['a','b'];
?column?
----------
t
(1 row)
select hstore 'a=>NULL, b=>qq' ?| ARRAY['b','a'];
?column?
----------
t
(1 row)
select hstore 'a=>NULL, b=>qq' ?| ARRAY['c','a'];
?column?
----------
t
(1 row)
select hstore 'a=>NULL, b=>qq' ?| ARRAY['c','d'];
?column?
----------
f
(1 row)
select hstore 'a=>NULL, b=>qq' ?| '{}'::text[];
?column?
----------
f
(1 row)
select hstore 'a=>NULL, b=>qq' ?& ARRAY['a','b'];
?column?
----------
t
(1 row)
select hstore 'a=>NULL, b=>qq' ?& ARRAY['b','a'];
?column?
----------
t
(1 row)
select hstore 'a=>NULL, b=>qq' ?& ARRAY['c','a'];
?column?
----------
f
(1 row)
select hstore 'a=>NULL, b=>qq' ?& ARRAY['c','d'];
?column?
----------
f
(1 row)
select hstore 'a=>NULL, b=>qq' ?& '{}'::text[];
?column?
----------
t
(1 row)
-- delete
select delete('a=>1 , b=>2, c=>3'::hstore, 'a');
delete
--------------------
"b"=>"2", "c"=>"3"
(1 row)
select delete('a=>null , b=>2, c=>3'::hstore, 'a');
delete
--------------------
"b"=>"2", "c"=>"3"
(1 row)
select delete('a=>1 , b=>2, c=>3'::hstore, 'b');
delete
--------------------
"a"=>"1", "c"=>"3"
(1 row)
select delete('a=>1 , b=>2, c=>3'::hstore, 'c');
delete
--------------------
"a"=>"1", "b"=>"2"
(1 row)
select delete('a=>1 , b=>2, c=>3'::hstore, 'd');
delete
------------------------------
"a"=>"1", "b"=>"2", "c"=>"3"
(1 row)
select 'a=>1 , b=>2, c=>3'::hstore - 'a'::text;
?column?
--------------------
"b"=>"2", "c"=>"3"
(1 row)
select 'a=>null , b=>2, c=>3'::hstore - 'a'::text;
?column?
--------------------
"b"=>"2", "c"=>"3"
(1 row)
select 'a=>1 , b=>2, c=>3'::hstore - 'b'::text;
?column?
--------------------
"a"=>"1", "c"=>"3"
(1 row)
select 'a=>1 , b=>2, c=>3'::hstore - 'c'::text;
?column?
--------------------
"a"=>"1", "b"=>"2"
(1 row)
select 'a=>1 , b=>2, c=>3'::hstore - 'd'::text;
?column?
------------------------------
"a"=>"1", "b"=>"2", "c"=>"3"
(1 row)
select pg_column_size('a=>1 , b=>2, c=>3'::hstore - 'b'::text)
= pg_column_size('a=>1, b=>2'::hstore);
?column?
----------
t
(1 row)
-- delete (array)
select delete('a=>1 , b=>2, c=>3'::hstore, ARRAY['d','e']);
delete
------------------------------
"a"=>"1", "b"=>"2", "c"=>"3"
(1 row)
select delete('a=>1 , b=>2, c=>3'::hstore, ARRAY['d','b']);
delete
--------------------
"a"=>"1", "c"=>"3"
(1 row)
select delete('a=>1 , b=>2, c=>3'::hstore, ARRAY['a','c']);
delete
----------
"b"=>"2"
(1 row)
select delete('a=>1 , b=>2, c=>3'::hstore, ARRAY[['b'],['c'],['a']]);
delete
--------
(1 row)
select delete('a=>1 , b=>2, c=>3'::hstore, '{}'::text[]);
delete
------------------------------
"a"=>"1", "b"=>"2", "c"=>"3"
(1 row)
select 'a=>1 , b=>2, c=>3'::hstore - ARRAY['d','e'];
?column?
------------------------------
"a"=>"1", "b"=>"2", "c"=>"3"
(1 row)
select 'a=>1 , b=>2, c=>3'::hstore - ARRAY['d','b'];
?column?
--------------------
"a"=>"1", "c"=>"3"
(1 row)
select 'a=>1 , b=>2, c=>3'::hstore - ARRAY['a','c'];
?column?
----------
"b"=>"2"
(1 row)
select 'a=>1 , b=>2, c=>3'::hstore - ARRAY[['b'],['c'],['a']];
?column?
----------
(1 row)
select 'a=>1 , b=>2, c=>3'::hstore - '{}'::text[];
?column?
------------------------------
"a"=>"1", "b"=>"2", "c"=>"3"
(1 row)
select pg_column_size('a=>1 , b=>2, c=>3'::hstore - ARRAY['a','c'])
= pg_column_size('b=>2'::hstore);
?column?
----------
t
(1 row)
select pg_column_size('a=>1 , b=>2, c=>3'::hstore - '{}'::text[])
= pg_column_size('a=>1, b=>2, c=>3'::hstore);
?column?
----------
t
(1 row)
-- delete (hstore)
select delete('aa=>1 , b=>2, c=>3'::hstore, 'aa=>4, b=>2'::hstore);
delete
---------------------
"c"=>"3", "aa"=>"1"
(1 row)
select delete('aa=>1 , b=>2, c=>3'::hstore, 'aa=>NULL, c=>3'::hstore);
delete
---------------------
"b"=>"2", "aa"=>"1"
(1 row)
select delete('aa=>1 , b=>2, c=>3'::hstore, 'aa=>1, b=>2, c=>3'::hstore);
delete
--------
(1 row)
select delete('aa=>1 , b=>2, c=>3'::hstore, 'b=>2'::hstore);
delete
---------------------
"c"=>"3", "aa"=>"1"
(1 row)
select delete('aa=>1 , b=>2, c=>3'::hstore, ''::hstore);
delete
-------------------------------
"b"=>"2", "c"=>"3", "aa"=>"1"
(1 row)
select 'aa=>1 , b=>2, c=>3'::hstore - 'aa=>4, b=>2'::hstore;
?column?
---------------------
"c"=>"3", "aa"=>"1"
(1 row)
select 'aa=>1 , b=>2, c=>3'::hstore - 'aa=>NULL, c=>3'::hstore;
?column?
---------------------
"b"=>"2", "aa"=>"1"
(1 row)
select 'aa=>1 , b=>2, c=>3'::hstore - 'aa=>1, b=>2, c=>3'::hstore;
?column?
----------
(1 row)
select 'aa=>1 , b=>2, c=>3'::hstore - 'b=>2'::hstore;
?column?
---------------------
"c"=>"3", "aa"=>"1"
(1 row)
select 'aa=>1 , b=>2, c=>3'::hstore - ''::hstore;
?column?
-------------------------------
"b"=>"2", "c"=>"3", "aa"=>"1"
(1 row)
select pg_column_size('a=>1 , b=>2, c=>3'::hstore - 'b=>2'::hstore)
= pg_column_size('a=>1, c=>3'::hstore);
?column?
----------
t
(1 row)
select pg_column_size('a=>1 , b=>2, c=>3'::hstore - ''::hstore)
= pg_column_size('a=>1, b=>2, c=>3'::hstore);
?column?
----------
t
(1 row)
-- ||
select 'aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f';
?column?
-------------------------------------------
"b"=>"g", "aa"=>"1", "cq"=>"l", "fg"=>"f"
(1 row)
select 'aa=>1 , b=>2, cq=>3'::hstore || 'aq=>l';
?column?
-------------------------------------------
"b"=>"2", "aa"=>"1", "aq"=>"l", "cq"=>"3"
(1 row)
select 'aa=>1 , b=>2, cq=>3'::hstore || 'aa=>l';
?column?
--------------------------------
"b"=>"2", "aa"=>"l", "cq"=>"3"
(1 row)
select 'aa=>1 , b=>2, cq=>3'::hstore || '';
?column?
--------------------------------
"b"=>"2", "aa"=>"1", "cq"=>"3"
(1 row)
select ''::hstore || 'cq=>l, b=>g, fg=>f';
?column?
--------------------------------
"b"=>"g", "cq"=>"l", "fg"=>"f"
(1 row)
select pg_column_size(''::hstore || ''::hstore) = pg_column_size(''::hstore);
?column?
----------
t
(1 row)
select pg_column_size('aa=>1'::hstore || 'b=>2'::hstore)
= pg_column_size('aa=>1, b=>2'::hstore);
?column?
----------
t
(1 row)
select pg_column_size('aa=>1, b=>2'::hstore || ''::hstore)
= pg_column_size('aa=>1, b=>2'::hstore);
?column?
----------
t
(1 row)
select pg_column_size(''::hstore || 'aa=>1, b=>2'::hstore)
= pg_column_size('aa=>1, b=>2'::hstore);
?column?
----------
t
(1 row)
-- hstore(text,text)
select 'a=>g, b=>c'::hstore || hstore('asd', 'gf');
?column?
---------------------------------
"a"=>"g", "b"=>"c", "asd"=>"gf"
(1 row)
select 'a=>g, b=>c'::hstore || hstore('b', 'gf');
?column?
---------------------
"a"=>"g", "b"=>"gf"
(1 row)
select 'a=>g, b=>c'::hstore || hstore('b', 'NULL');
?column?
-----------------------
"a"=>"g", "b"=>"NULL"
(1 row)
select 'a=>g, b=>c'::hstore || hstore('b', NULL);
?column?
---------------------
"a"=>"g", "b"=>NULL
(1 row)
select ('a=>g, b=>c'::hstore || hstore(NULL, 'b')) is null;
?column?
----------
t
(1 row)
select pg_column_size(hstore('b', 'gf'))
= pg_column_size('b=>gf'::hstore);
?column?
----------
t
(1 row)
select pg_column_size('a=>g, b=>c'::hstore || hstore('b', 'gf'))
= pg_column_size('a=>g, b=>gf'::hstore);
?column?
----------
t
(1 row)
-- slice()
select slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['g','h','i']);
slice
-------
(1 row)
select slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['c','b']);
slice
--------------------
"b"=>"2", "c"=>"3"
(1 row)
select slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['aa','b']);
slice
---------------------
"b"=>"2", "aa"=>"1"
(1 row)
select slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['c','b','aa']);
slice
-------------------------------
"b"=>"2", "c"=>"3", "aa"=>"1"
(1 row)
select pg_column_size(slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['c','b']))
= pg_column_size('b=>2, c=>3'::hstore);
?column?
----------
t
(1 row)
select pg_column_size(slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['c','b','aa']))
= pg_column_size('aa=>1, b=>2, c=>3'::hstore);
?column?
----------
t
(1 row)
-- array input
select '{}'::text[]::hstore;
hstore
--------
(1 row)
select ARRAY['a','g','b','h','asd']::hstore;
ERROR: array must have even number of elements
select ARRAY['a','g','b','h','asd','i']::hstore;
array
--------------------------------
"a"=>"g", "b"=>"h", "asd"=>"i"
(1 row)
select ARRAY[['a','g'],['b','h'],['asd','i']]::hstore;
array
--------------------------------
"a"=>"g", "b"=>"h", "asd"=>"i"
(1 row)
select ARRAY[['a','g','b'],['h','asd','i']]::hstore;
ERROR: array must have two columns
select ARRAY[[['a','g'],['b','h'],['asd','i']]]::hstore;
ERROR: wrong number of array subscripts
select hstore('{}'::text[]);
hstore
--------
(1 row)
select hstore(ARRAY['a','g','b','h','asd']);
ERROR: array must have even number of elements
select hstore(ARRAY['a','g','b','h','asd','i']);
hstore
--------------------------------
"a"=>"g", "b"=>"h", "asd"=>"i"
(1 row)
select hstore(ARRAY[['a','g'],['b','h'],['asd','i']]);
hstore
--------------------------------
"a"=>"g", "b"=>"h", "asd"=>"i"
(1 row)
select hstore(ARRAY[['a','g','b'],['h','asd','i']]);
ERROR: array must have two columns
select hstore(ARRAY[[['a','g'],['b','h'],['asd','i']]]);
ERROR: wrong number of array subscripts
select hstore('[0:5]={a,g,b,h,asd,i}'::text[]);
hstore
--------------------------------
"a"=>"g", "b"=>"h", "asd"=>"i"
(1 row)
select hstore('[0:2][1:2]={{a,g},{b,h},{asd,i}}'::text[]);
hstore
--------------------------------
"a"=>"g", "b"=>"h", "asd"=>"i"
(1 row)
-- pairs of arrays
select hstore(ARRAY['a','b','asd'], ARRAY['g','h','i']);
hstore
--------------------------------
"a"=>"g", "b"=>"h", "asd"=>"i"
(1 row)
select hstore(ARRAY['a','b','asd'], ARRAY['g','h',NULL]);
hstore
---------------------------------
"a"=>"g", "b"=>"h", "asd"=>NULL
(1 row)
select hstore(ARRAY['z','y','x'], ARRAY['1','2','3']);
hstore
------------------------------
"x"=>"3", "y"=>"2", "z"=>"1"
(1 row)
select hstore(ARRAY['aaa','bb','c','d'], ARRAY[null::text,null,null,null]);
hstore
-----------------------------------------------
"c"=>NULL, "d"=>NULL, "bb"=>NULL, "aaa"=>NULL
(1 row)
select hstore(ARRAY['aaa','bb','c','d'], null);
hstore
-----------------------------------------------
"c"=>NULL, "d"=>NULL, "bb"=>NULL, "aaa"=>NULL
(1 row)
select quote_literal(hstore('{}'::text[], '{}'::text[]));
quote_literal
---------------
''
(1 row)
select quote_literal(hstore('{}'::text[], null));
quote_literal
---------------
''
(1 row)
select hstore(ARRAY['a'], '{}'::text[]); -- error
ERROR: arrays must have same bounds
select hstore('{}'::text[], ARRAY['a']); -- error
ERROR: arrays must have same bounds
select pg_column_size(hstore(ARRAY['a','b','asd'], ARRAY['g','h','i']))
= pg_column_size('a=>g, b=>h, asd=>i'::hstore);
?column?
----------
t
(1 row)
-- records
select hstore(v) from (values (1, 'foo', 1.2, 3::float8)) v(a,b,c,d);
hstore
--------------------------------------------
"a"=>"1", "b"=>"foo", "c"=>"1.2", "d"=>"3"
(1 row)
create domain hstestdom1 as integer not null default 0;
create table testhstore0 (a integer, b text, c numeric, d float8);
create table testhstore1 (a integer, b text, c numeric, d float8, e hstestdom1);
insert into testhstore0 values (1, 'foo', 1.2, 3::float8);
insert into testhstore1 values (1, 'foo', 1.2, 3::float8);
select hstore(v) from testhstore1 v;
hstore
------------------------------------------------------
"a"=>"1", "b"=>"foo", "c"=>"1.2", "d"=>"3", "e"=>"0"
(1 row)
select hstore(null::testhstore0);
hstore
--------------------------------------------
"a"=>NULL, "b"=>NULL, "c"=>NULL, "d"=>NULL
(1 row)
select hstore(null::testhstore1);
hstore
-------------------------------------------------------
"a"=>NULL, "b"=>NULL, "c"=>NULL, "d"=>NULL, "e"=>NULL
(1 row)
select pg_column_size(hstore(v))
= pg_column_size('a=>1, b=>"foo", c=>"1.2", d=>"3", e=>"0"'::hstore)
from testhstore1 v;
?column?
----------
t
(1 row)
select populate_record(v, hstore('c', '3.45')) from testhstore1 v;
populate_record
------------------
(1,foo,3.45,3,0)
(1 row)
select populate_record(v, hstore('d', '3.45')) from testhstore1 v;
populate_record
--------------------
(1,foo,1.2,3.45,0)
(1 row)
select populate_record(v, hstore('e', '123')) from testhstore1 v;
populate_record
-------------------
(1,foo,1.2,3,123)
(1 row)
select populate_record(v, hstore('e', null)) from testhstore1 v;
ERROR: domain hstestdom1 does not allow null values
select populate_record(v, hstore('c', null)) from testhstore1 v;
populate_record
-----------------
(1,foo,,3,0)
(1 row)
select populate_record(v, hstore('b', 'foo') || hstore('a', '123')) from testhstore1 v;
populate_record
-------------------
(123,foo,1.2,3,0)
(1 row)
select populate_record(v, hstore('b', 'foo') || hstore('e', null)) from testhstore0 v;
populate_record
-----------------
(1,foo,1.2,3)
(1 row)
select populate_record(v, hstore('b', 'foo') || hstore('e', null)) from testhstore1 v;
ERROR: domain hstestdom1 does not allow null values
select populate_record(v, '') from testhstore0 v;
populate_record
-----------------
(1,foo,1.2,3)
(1 row)
select populate_record(v, '') from testhstore1 v;
populate_record
-----------------
(1,foo,1.2,3,0)
(1 row)
select populate_record(null::testhstore1, hstore('c', '3.45') || hstore('a', '123'));
ERROR: domain hstestdom1 does not allow null values
select populate_record(null::testhstore1, hstore('c', '3.45') || hstore('e', '123'));
populate_record
-----------------
(,,3.45,,123)
(1 row)
select populate_record(null::testhstore0, '');
populate_record
-----------------
(,,,)
(1 row)
select populate_record(null::testhstore1, '');
ERROR: domain hstestdom1 does not allow null values
select v #= hstore('c', '3.45') from testhstore1 v;
?column?
------------------
(1,foo,3.45,3,0)
(1 row)
select v #= hstore('d', '3.45') from testhstore1 v;
?column?
--------------------
(1,foo,1.2,3.45,0)
(1 row)
select v #= hstore('e', '123') from testhstore1 v;
?column?
-------------------
(1,foo,1.2,3,123)
(1 row)
select v #= hstore('c', null) from testhstore1 v;
?column?
--------------
(1,foo,,3,0)
(1 row)
select v #= hstore('e', null) from testhstore0 v;
?column?
---------------
(1,foo,1.2,3)
(1 row)
select v #= hstore('e', null) from testhstore1 v;
ERROR: domain hstestdom1 does not allow null values
select v #= (hstore('b', 'foo') || hstore('a', '123')) from testhstore1 v;
?column?
-------------------
(123,foo,1.2,3,0)
(1 row)
select v #= (hstore('b', 'foo') || hstore('e', '123')) from testhstore1 v;
?column?
-------------------
(1,foo,1.2,3,123)
(1 row)
select v #= hstore '' from testhstore0 v;
?column?
---------------
(1,foo,1.2,3)
(1 row)
select v #= hstore '' from testhstore1 v;
?column?
-----------------
(1,foo,1.2,3,0)
(1 row)
select null::testhstore1 #= (hstore('c', '3.45') || hstore('a', '123'));
ERROR: domain hstestdom1 does not allow null values
select null::testhstore1 #= (hstore('c', '3.45') || hstore('e', '123'));
?column?
---------------
(,,3.45,,123)
(1 row)
select null::testhstore0 #= hstore '';
?column?
----------
(,,,)
(1 row)
select null::testhstore1 #= hstore '';
ERROR: domain hstestdom1 does not allow null values
select v #= h from testhstore1 v, (values (hstore 'a=>123',1),('b=>foo,c=>3.21',2),('a=>null',3),('e=>123',4),('f=>blah',5)) x(h,i) order by i;
?column?
-------------------
(123,foo,1.2,3,0)
(1,foo,3.21,3,0)
(,foo,1.2,3,0)
(1,foo,1.2,3,123)
(1,foo,1.2,3,0)
(5 rows)
-- keys/values
select akeys('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f');
akeys
--------------
{b,aa,cq,fg}
(1 row)
select akeys('""=>1');
akeys
-------
{""}
(1 row)
select akeys('');
akeys
-------
{}
(1 row)
select avals('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f');
avals
-----------
{g,1,l,f}
(1 row)
select avals('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>NULL');
avals
--------------
{g,1,l,NULL}
(1 row)
select avals('""=>1');
avals
-------
{1}
(1 row)
select avals('');
avals
-------
{}
(1 row)
select hstore_to_array('aa=>1, cq=>l, b=>g, fg=>NULL'::hstore);
hstore_to_array
-------------------------
{b,g,aa,1,cq,l,fg,NULL}
(1 row)
select %% 'aa=>1, cq=>l, b=>g, fg=>NULL';
?column?
-------------------------
{b,g,aa,1,cq,l,fg,NULL}
(1 row)
select hstore_to_matrix('aa=>1, cq=>l, b=>g, fg=>NULL'::hstore);
hstore_to_matrix
---------------------------------
{{b,g},{aa,1},{cq,l},{fg,NULL}}
(1 row)
select %# 'aa=>1, cq=>l, b=>g, fg=>NULL';
?column?
---------------------------------
{{b,g},{aa,1},{cq,l},{fg,NULL}}
(1 row)
select * from skeys('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f');
skeys
-------
b
aa
cq
fg
(4 rows)
select * from skeys('""=>1');
skeys
-------
(1 row)
select * from skeys('');
skeys
-------
(0 rows)
select * from svals('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f');
svals
-------
g
1
l
f
(4 rows)
select *, svals is null from svals('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>NULL');
svals | ?column?
-------+----------
g | f
1 | f
l | f
| t
(4 rows)
select * from svals('""=>1');
svals
-------
1
(1 row)
select * from svals('');
svals
-------
(0 rows)
select * from each('aaa=>bq, b=>NULL, ""=>1 ');
key | value
-----+-------
| 1
b |
aaa | bq
(3 rows)
-- @>
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b';
?column?
----------
t
(1 row)
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b, c=>NULL';
?column?
----------
t
(1 row)
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b, g=>NULL';
?column?
----------
f
(1 row)
select 'a=>b, b=>1, c=>NULL'::hstore @> 'g=>NULL';
?column?
----------
f
(1 row)
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>c';
?column?
----------
f
(1 row)
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b';
?column?
----------
t
(1 row)
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b, c=>q';
?column?
----------
f
(1 row)
CREATE TABLE testhstore (h hstore);
\copy testhstore from 'data/hstore.data'
select count(*) from testhstore where h @> 'wait=>NULL';
count
-------
1
(1 row)
select count(*) from testhstore where h @> 'wait=>CC';
count
-------
15
(1 row)
select count(*) from testhstore where h @> 'wait=>CC, public=>t';
count
-------
2
(1 row)
select count(*) from testhstore where h ? 'public';
count
-------
194
(1 row)
select count(*) from testhstore where h ?| ARRAY['public','disabled'];
count
-------
337
(1 row)
select count(*) from testhstore where h ?& ARRAY['public','disabled'];
count
-------
42
(1 row)
create index hidx on testhstore using gist(h);
set enable_seqscan=off;
select count(*) from testhstore where h @> 'wait=>NULL';
count
-------
1
(1 row)
select count(*) from testhstore where h @> 'wait=>CC';
count
-------
15
(1 row)
select count(*) from testhstore where h @> 'wait=>CC, public=>t';
count
-------
2
(1 row)
select count(*) from testhstore where h ? 'public';
count
-------
194
(1 row)
select count(*) from testhstore where h ?| ARRAY['public','disabled'];
count
-------
337
(1 row)
select count(*) from testhstore where h ?& ARRAY['public','disabled'];
count
-------
42
(1 row)
drop index hidx;
create index hidx on testhstore using gist(h gist_hstore_ops(siglen=0));
ERROR: value 0 out of bounds for option "siglen"
DETAIL: Valid values are between "1" and "2024".
create index hidx on testhstore using gist(h gist_hstore_ops(siglen=2025));
ERROR: value 2025 out of bounds for option "siglen"
DETAIL: Valid values are between "1" and "2024".
create index hidx on testhstore using gist(h gist_hstore_ops(siglen=2024));
set enable_seqscan=off;
select count(*) from testhstore where h @> 'wait=>NULL';
count
-------
1
(1 row)
select count(*) from testhstore where h @> 'wait=>CC';
count
-------
15
(1 row)
select count(*) from testhstore where h @> 'wait=>CC, public=>t';
count
-------
2
(1 row)
select count(*) from testhstore where h ? 'public';
count
-------
194
(1 row)
select count(*) from testhstore where h ?| ARRAY['public','disabled'];
count
-------
337
(1 row)
select count(*) from testhstore where h ?& ARRAY['public','disabled'];
count
-------
42
(1 row)
drop index hidx;
create index hidx on testhstore using gin (h);
set enable_seqscan=off;
select count(*) from testhstore where h @> 'wait=>NULL';
count
-------
1
(1 row)
select count(*) from testhstore where h @> 'wait=>CC';
count
-------
15
(1 row)
select count(*) from testhstore where h @> 'wait=>CC, public=>t';
count
-------
2
(1 row)
select count(*) from testhstore where h ? 'public';
count
-------
194
(1 row)
select count(*) from testhstore where h ?| ARRAY['public','disabled'];
count
-------
337
(1 row)
select count(*) from testhstore where h ?& ARRAY['public','disabled'];
count
-------
42
(1 row)
select count(*) from (select (each(h)).key from testhstore) as wow ;
count
-------
4781
(1 row)
select key, count(*) from (select (each(h)).key from testhstore) as wow group by key order by count desc, key;
key | count
-----------+-------
line | 884
query | 207
pos | 203
node | 202
space | 197
status | 195
public | 194
title | 190
wait | 190
org | 189
user | 189
coauthors | 188
disabled | 185
indexed | 184
cleaned | 180
bad | 179
date | 179
world | 176
state | 172
subtitle | 169
auth | 168
abstract | 161
(22 rows)
-- sort/hash
select count(distinct h) from testhstore;
count
-------
885
(1 row)
set enable_hashagg = false;
select count(*) from (select h from (select * from testhstore union all select * from testhstore) hs group by h) hs2;
count
-------
885
(1 row)
set enable_hashagg = true;
set enable_sort = false;
select count(*) from (select h from (select * from testhstore union all select * from testhstore) hs group by h) hs2;
count
-------
885
(1 row)
select distinct * from (values (hstore '' || ''),('')) v(h);
h
---
(1 row)
set enable_sort = true;
-- btree
drop index hidx;
create index hidx on testhstore using btree (h);
set enable_seqscan=off;
select count(*) from testhstore where h #># 'p=>1';
count
-------
125
(1 row)
select count(*) from testhstore where h = 'pos=>98, line=>371, node=>CBA, indexed=>t';
count
-------
1
(1 row)
-- json and jsonb
select hstore_to_json('"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4');
hstore_to_json
-------------------------------------------------------------------------------------------------
{"b": "t", "c": null, "d": "12345", "e": "012345", "f": "1.234", "g": "2.345e+4", "a key": "1"}
(1 row)
select cast( hstore '"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4' as json);
json
-------------------------------------------------------------------------------------------------
{"b": "t", "c": null, "d": "12345", "e": "012345", "f": "1.234", "g": "2.345e+4", "a key": "1"}
(1 row)
select hstore_to_json_loose('"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4, h=> "2016-01-01"');
hstore_to_json_loose
-------------------------------------------------------------------------------------------------------------
{"b": true, "c": null, "d": 12345, "e": "012345", "f": 1.234, "g": 2.345e+4, "h": "2016-01-01", "a key": 1}
(1 row)
select hstore_to_jsonb('"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4');
hstore_to_jsonb
-------------------------------------------------------------------------------------------------
{"b": "t", "c": null, "d": "12345", "e": "012345", "f": "1.234", "g": "2.345e+4", "a key": "1"}
(1 row)
select cast( hstore '"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4' as jsonb);
jsonb
-------------------------------------------------------------------------------------------------
{"b": "t", "c": null, "d": "12345", "e": "012345", "f": "1.234", "g": "2.345e+4", "a key": "1"}
(1 row)
select hstore_to_jsonb_loose('"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4, h=> "2016-01-01"');
hstore_to_jsonb_loose
----------------------------------------------------------------------------------------------------------
{"b": true, "c": null, "d": 12345, "e": "012345", "f": 1.234, "g": 23450, "h": "2016-01-01", "a key": 1}
(1 row)
create table test_json_agg (f1 text, f2 hstore);
insert into test_json_agg values ('rec1','"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4'),
('rec2','"a key" =>2, b => f, c => "null", d=> -12345, e => 012345.6, f=> -1.234, g=> 0.345e-4');
select json_agg(q) from test_json_agg q;
json_agg
----------------------------------------------------------------------------------------------------------------------------
[{"f1":"rec1","f2":{"b": "t", "c": null, "d": "12345", "e": "012345", "f": "1.234", "g": "2.345e+4", "a key": "1"}}, +
{"f1":"rec2","f2":{"b": "f", "c": "null", "d": "-12345", "e": "012345.6", "f": "-1.234", "g": "0.345e-4", "a key": "2"}}]
(1 row)
select json_agg(q) from (select f1, hstore_to_json_loose(f2) as f2 from test_json_agg) q;
json_agg
----------------------------------------------------------------------------------------------------------------------
[{"f1":"rec1","f2":{"b": true, "c": null, "d": 12345, "e": "012345", "f": 1.234, "g": 2.345e+4, "a key": 1}}, +
{"f1":"rec2","f2":{"b": false, "c": "null", "d": -12345, "e": "012345.6", "f": -1.234, "g": 0.345e-4, "a key": 2}}]
(1 row)
-- Test subscripting
insert into test_json_agg default values;
select f2['d'], f2['x'] is null as x_isnull from test_json_agg;
f2 | x_isnull
--------+----------
12345 | t
-12345 | t
| t
(3 rows)
select f2['d']['e'] from test_json_agg; -- error
ERROR: hstore allows only one subscript
select f2['d':'e'] from test_json_agg; -- error
ERROR: hstore allows only one subscript
update test_json_agg set f2['d'] = f2['e'], f2['x'] = 'xyzzy';
select f2 from test_json_agg;
f2
---------------------------------------------------------------------------------------------------------------------
"b"=>"t", "c"=>NULL, "d"=>"012345", "e"=>"012345", "f"=>"1.234", "g"=>"2.345e+4", "x"=>"xyzzy", "a key"=>"1"
"b"=>"f", "c"=>"null", "d"=>"012345.6", "e"=>"012345.6", "f"=>"-1.234", "g"=>"0.345e-4", "x"=>"xyzzy", "a key"=>"2"
"d"=>NULL, "x"=>"xyzzy"
(3 rows)
-- Test subscripting in plpgsql
do $$ declare h hstore;
begin h['a'] := 'b'; raise notice 'h = %, h[a] = %', h, h['a']; end $$;
NOTICE: h = "a"=>"b", h[a] = b
-- Check the hstore_hash() and hstore_hash_extended() function explicitly.
SELECT v as value, hstore_hash(v)::bit(32) as standard,
hstore_hash_extended(v, 0)::bit(32) as extended0,
hstore_hash_extended(v, 1)::bit(32) as extended1
FROM (VALUES (NULL::hstore), (''), ('"a key" =>1'), ('c => null'),
('e => 012345'), ('g => 2.345e+4')) x(v)
WHERE hstore_hash(v)::bit(32) != hstore_hash_extended(v, 0)::bit(32)
OR hstore_hash(v)::bit(32) = hstore_hash_extended(v, 1)::bit(32);
value | standard | extended0 | extended1
-------+----------+-----------+-----------
(0 rows)
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