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postgresql/contrib/hstore/expected/hstore.out
Tom Lane 398f70ec07 Preserve column names in the execution-time tupledesc for a RowExpr. 
The hstore and json datatypes both have record-conversion functions that
pay attention to column names in the composite values they're handed.
We used to not worry about inserting correct field names into tuple
descriptors generated at runtime, but given these examples it seems
useful to do so.  Observe the nicer-looking results in the regression
tests whose results changed.

catversion bump because there is a subtle change in requirements for stored
rule parsetrees: RowExprs from ROW() constructs now have to include field
names.

Andrew Dunstan and Tom Lane
2012-02-14 17:34:56 -05:00

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CREATE EXTENSION hstore;
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 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)
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