2011-02-14 02:06:41 +01:00
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CREATE EXTENSION hstore;
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2006-09-10 19:36:52 +02:00
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2016-11-29 21:05:22 +01:00
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-- Check whether any of our opclasses fail amvalidate
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SELECT amname, opcname
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FROM pg_opclass opc LEFT JOIN pg_am am ON am.oid = opcmethod
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WHERE opc.oid >= 16384 AND NOT amvalidate(opc.oid);
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2006-09-10 19:36:52 +02:00
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set escape_string_warning=off;
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2006-09-05 20:00:58 +02:00
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--hstore;
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select ''::hstore;
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select 'a=>b'::hstore;
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select ' a=>b'::hstore;
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select 'a =>b'::hstore;
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select 'a=>b '::hstore;
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select 'a=> b'::hstore;
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select '"a"=>"b"'::hstore;
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select ' "a"=>"b"'::hstore;
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select '"a" =>"b"'::hstore;
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select '"a"=>"b" '::hstore;
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select '"a"=> "b"'::hstore;
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select 'aa=>bb'::hstore;
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select ' aa=>bb'::hstore;
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select 'aa =>bb'::hstore;
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select 'aa=>bb '::hstore;
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select 'aa=> bb'::hstore;
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select '"aa"=>"bb"'::hstore;
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select ' "aa"=>"bb"'::hstore;
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select '"aa" =>"bb"'::hstore;
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select '"aa"=>"bb" '::hstore;
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select '"aa"=> "bb"'::hstore;
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select 'aa=>bb, cc=>dd'::hstore;
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select 'aa=>bb , cc=>dd'::hstore;
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select 'aa=>bb ,cc=>dd'::hstore;
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select 'aa=>bb, "cc"=>dd'::hstore;
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select 'aa=>bb , "cc"=>dd'::hstore;
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select 'aa=>bb ,"cc"=>dd'::hstore;
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select 'aa=>"bb", cc=>dd'::hstore;
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select 'aa=>"bb" , cc=>dd'::hstore;
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select 'aa=>"bb" ,cc=>dd'::hstore;
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select 'aa=>null'::hstore;
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select 'aa=>NuLl'::hstore;
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select 'aa=>"NuLl"'::hstore;
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2010-07-20 03:22:52 +02:00
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select e'\\=a=>q=w'::hstore;
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select e'"=a"=>q\\=w'::hstore;
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select e'"\\"a"=>q>w'::hstore;
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select e'\\"a=>q"w'::hstore;
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2006-09-05 20:00:58 +02:00
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select ''::hstore;
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select ' '::hstore;
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2022-12-27 20:50:56 +01:00
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-- invalid input
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select ' =>null'::hstore;
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select 'aa=>"'::hstore;
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-- also try it with non-error-throwing API
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select pg_input_is_valid('a=>b', 'hstore');
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select pg_input_is_valid('a=b', 'hstore');
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2023-02-28 00:04:13 +01:00
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select * from pg_input_error_info('a=b', 'hstore');
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select * from pg_input_error_info(' =>b', 'hstore');
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2022-12-27 20:50:56 +01:00
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2006-09-05 20:00:58 +02:00
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-- -> operator
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select 'aa=>b, c=>d , b=>16'::hstore->'c';
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select 'aa=>b, c=>d , b=>16'::hstore->'b';
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select 'aa=>b, c=>d , b=>16'::hstore->'aa';
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select ('aa=>b, c=>d , b=>16'::hstore->'gg') is null;
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select ('aa=>NULL, c=>d , b=>16'::hstore->'aa') is null;
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2007-03-14 15:21:53 +01:00
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select ('aa=>"NULL", c=>d , b=>16'::hstore->'aa') is null;
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2006-09-05 20:00:58 +02:00
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2009-09-30 21:50:22 +02:00
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-- -> array operator
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select 'aa=>"NULL", c=>d , b=>16'::hstore -> ARRAY['aa','c'];
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select 'aa=>"NULL", c=>d , b=>16'::hstore -> ARRAY['c','aa'];
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select 'aa=>NULL, c=>d , b=>16'::hstore -> ARRAY['aa','c',null];
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select 'aa=>1, c=>3, b=>2, d=>4'::hstore -> ARRAY[['b','d'],['aa','c']];
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2006-09-05 20:00:58 +02:00
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-- exists/defined
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2006-10-11 18:42:51 +02:00
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select exist('a=>NULL, b=>qq', 'a');
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select exist('a=>NULL, b=>qq', 'b');
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select exist('a=>NULL, b=>qq', 'c');
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2007-03-14 15:21:53 +01:00
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select exist('a=>"NULL", b=>qq', 'a');
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2006-10-11 18:42:51 +02:00
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select defined('a=>NULL, b=>qq', 'a');
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select defined('a=>NULL, b=>qq', 'b');
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select defined('a=>NULL, b=>qq', 'c');
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2007-03-14 15:21:53 +01:00
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select defined('a=>"NULL", b=>qq', 'a');
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2009-09-30 21:50:22 +02:00
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select hstore 'a=>NULL, b=>qq' ? 'a';
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select hstore 'a=>NULL, b=>qq' ? 'b';
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select hstore 'a=>NULL, b=>qq' ? 'c';
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select hstore 'a=>"NULL", b=>qq' ? 'a';
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select hstore 'a=>NULL, b=>qq' ?| ARRAY['a','b'];
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select hstore 'a=>NULL, b=>qq' ?| ARRAY['b','a'];
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select hstore 'a=>NULL, b=>qq' ?| ARRAY['c','a'];
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select hstore 'a=>NULL, b=>qq' ?| ARRAY['c','d'];
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select hstore 'a=>NULL, b=>qq' ?| '{}'::text[];
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select hstore 'a=>NULL, b=>qq' ?& ARRAY['a','b'];
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select hstore 'a=>NULL, b=>qq' ?& ARRAY['b','a'];
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select hstore 'a=>NULL, b=>qq' ?& ARRAY['c','a'];
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select hstore 'a=>NULL, b=>qq' ?& ARRAY['c','d'];
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select hstore 'a=>NULL, b=>qq' ?& '{}'::text[];
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2006-09-05 20:00:58 +02:00
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2010-11-23 21:27:50 +01:00
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-- delete
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2006-09-05 20:00:58 +02:00
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select delete('a=>1 , b=>2, c=>3'::hstore, 'a');
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select delete('a=>null , b=>2, c=>3'::hstore, 'a');
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select delete('a=>1 , b=>2, c=>3'::hstore, 'b');
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select delete('a=>1 , b=>2, c=>3'::hstore, 'c');
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select delete('a=>1 , b=>2, c=>3'::hstore, 'd');
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2009-09-30 21:50:22 +02:00
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select 'a=>1 , b=>2, c=>3'::hstore - 'a'::text;
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select 'a=>null , b=>2, c=>3'::hstore - 'a'::text;
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select 'a=>1 , b=>2, c=>3'::hstore - 'b'::text;
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select 'a=>1 , b=>2, c=>3'::hstore - 'c'::text;
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select 'a=>1 , b=>2, c=>3'::hstore - 'd'::text;
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select pg_column_size('a=>1 , b=>2, c=>3'::hstore - 'b'::text)
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= pg_column_size('a=>1, b=>2'::hstore);
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-- delete (array)
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select delete('a=>1 , b=>2, c=>3'::hstore, ARRAY['d','e']);
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select delete('a=>1 , b=>2, c=>3'::hstore, ARRAY['d','b']);
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select delete('a=>1 , b=>2, c=>3'::hstore, ARRAY['a','c']);
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select delete('a=>1 , b=>2, c=>3'::hstore, ARRAY[['b'],['c'],['a']]);
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select delete('a=>1 , b=>2, c=>3'::hstore, '{}'::text[]);
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select 'a=>1 , b=>2, c=>3'::hstore - ARRAY['d','e'];
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select 'a=>1 , b=>2, c=>3'::hstore - ARRAY['d','b'];
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select 'a=>1 , b=>2, c=>3'::hstore - ARRAY['a','c'];
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select 'a=>1 , b=>2, c=>3'::hstore - ARRAY[['b'],['c'],['a']];
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select 'a=>1 , b=>2, c=>3'::hstore - '{}'::text[];
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select pg_column_size('a=>1 , b=>2, c=>3'::hstore - ARRAY['a','c'])
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= pg_column_size('b=>2'::hstore);
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select pg_column_size('a=>1 , b=>2, c=>3'::hstore - '{}'::text[])
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= pg_column_size('a=>1, b=>2, c=>3'::hstore);
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-- delete (hstore)
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select delete('aa=>1 , b=>2, c=>3'::hstore, 'aa=>4, b=>2'::hstore);
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select delete('aa=>1 , b=>2, c=>3'::hstore, 'aa=>NULL, c=>3'::hstore);
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select delete('aa=>1 , b=>2, c=>3'::hstore, 'aa=>1, b=>2, c=>3'::hstore);
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select delete('aa=>1 , b=>2, c=>3'::hstore, 'b=>2'::hstore);
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select delete('aa=>1 , b=>2, c=>3'::hstore, ''::hstore);
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select 'aa=>1 , b=>2, c=>3'::hstore - 'aa=>4, b=>2'::hstore;
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select 'aa=>1 , b=>2, c=>3'::hstore - 'aa=>NULL, c=>3'::hstore;
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select 'aa=>1 , b=>2, c=>3'::hstore - 'aa=>1, b=>2, c=>3'::hstore;
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select 'aa=>1 , b=>2, c=>3'::hstore - 'b=>2'::hstore;
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select 'aa=>1 , b=>2, c=>3'::hstore - ''::hstore;
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select pg_column_size('a=>1 , b=>2, c=>3'::hstore - 'b=>2'::hstore)
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= pg_column_size('a=>1, c=>3'::hstore);
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select pg_column_size('a=>1 , b=>2, c=>3'::hstore - ''::hstore)
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= pg_column_size('a=>1, b=>2, c=>3'::hstore);
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2006-09-05 20:00:58 +02:00
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-- ||
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select 'aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f';
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select 'aa=>1 , b=>2, cq=>3'::hstore || 'aq=>l';
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select 'aa=>1 , b=>2, cq=>3'::hstore || 'aa=>l';
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select 'aa=>1 , b=>2, cq=>3'::hstore || '';
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select ''::hstore || 'cq=>l, b=>g, fg=>f';
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2009-09-30 21:50:22 +02:00
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select pg_column_size(''::hstore || ''::hstore) = pg_column_size(''::hstore);
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select pg_column_size('aa=>1'::hstore || 'b=>2'::hstore)
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= pg_column_size('aa=>1, b=>2'::hstore);
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select pg_column_size('aa=>1, b=>2'::hstore || ''::hstore)
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= pg_column_size('aa=>1, b=>2'::hstore);
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select pg_column_size(''::hstore || 'aa=>1, b=>2'::hstore)
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= pg_column_size('aa=>1, b=>2'::hstore);
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2006-09-05 20:00:58 +02:00
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2011-11-08 14:07:21 +01:00
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-- hstore(text,text)
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select 'a=>g, b=>c'::hstore || hstore('asd', 'gf');
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select 'a=>g, b=>c'::hstore || hstore('b', 'gf');
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select 'a=>g, b=>c'::hstore || hstore('b', 'NULL');
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select 'a=>g, b=>c'::hstore || hstore('b', NULL);
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select ('a=>g, b=>c'::hstore || hstore(NULL, 'b')) is null;
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select pg_column_size(hstore('b', 'gf'))
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2009-09-30 21:50:22 +02:00
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= pg_column_size('b=>gf'::hstore);
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2011-11-08 14:07:21 +01:00
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select pg_column_size('a=>g, b=>c'::hstore || hstore('b', 'gf'))
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2009-09-30 21:50:22 +02:00
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= pg_column_size('a=>g, b=>gf'::hstore);
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2010-07-02 22:36:49 +02:00
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-- slice()
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select slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['g','h','i']);
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select slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['c','b']);
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select slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['aa','b']);
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select slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['c','b','aa']);
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select pg_column_size(slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['c','b']))
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2009-09-30 21:50:22 +02:00
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= pg_column_size('b=>2, c=>3'::hstore);
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2010-07-02 22:36:49 +02:00
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select pg_column_size(slice(hstore 'aa=>1, b=>2, c=>3', ARRAY['c','b','aa']))
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2009-09-30 21:50:22 +02:00
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= pg_column_size('aa=>1, b=>2, c=>3'::hstore);
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-- array input
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select '{}'::text[]::hstore;
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select ARRAY['a','g','b','h','asd']::hstore;
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select ARRAY['a','g','b','h','asd','i']::hstore;
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select ARRAY[['a','g'],['b','h'],['asd','i']]::hstore;
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select ARRAY[['a','g','b'],['h','asd','i']]::hstore;
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select ARRAY[[['a','g'],['b','h'],['asd','i']]]::hstore;
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select hstore('{}'::text[]);
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select hstore(ARRAY['a','g','b','h','asd']);
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select hstore(ARRAY['a','g','b','h','asd','i']);
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select hstore(ARRAY[['a','g'],['b','h'],['asd','i']]);
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select hstore(ARRAY[['a','g','b'],['h','asd','i']]);
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select hstore(ARRAY[[['a','g'],['b','h'],['asd','i']]]);
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select hstore('[0:5]={a,g,b,h,asd,i}'::text[]);
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select hstore('[0:2][1:2]={{a,g},{b,h},{asd,i}}'::text[]);
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2010-06-15 21:48:30 +02:00
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-- pairs of arrays
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select hstore(ARRAY['a','b','asd'], ARRAY['g','h','i']);
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select hstore(ARRAY['a','b','asd'], ARRAY['g','h',NULL]);
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select hstore(ARRAY['z','y','x'], ARRAY['1','2','3']);
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select hstore(ARRAY['aaa','bb','c','d'], ARRAY[null::text,null,null,null]);
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select hstore(ARRAY['aaa','bb','c','d'], null);
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select quote_literal(hstore('{}'::text[], '{}'::text[]));
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select quote_literal(hstore('{}'::text[], null));
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select hstore(ARRAY['a'], '{}'::text[]); -- error
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select hstore('{}'::text[], ARRAY['a']); -- error
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select pg_column_size(hstore(ARRAY['a','b','asd'], ARRAY['g','h','i']))
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= pg_column_size('a=>g, b=>h, asd=>i'::hstore);
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2009-09-30 21:50:22 +02:00
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-- records
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select hstore(v) from (values (1, 'foo', 1.2, 3::float8)) v(a,b,c,d);
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create domain hstestdom1 as integer not null default 0;
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create table testhstore0 (a integer, b text, c numeric, d float8);
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create table testhstore1 (a integer, b text, c numeric, d float8, e hstestdom1);
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insert into testhstore0 values (1, 'foo', 1.2, 3::float8);
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insert into testhstore1 values (1, 'foo', 1.2, 3::float8);
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select hstore(v) from testhstore1 v;
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select hstore(null::testhstore0);
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select hstore(null::testhstore1);
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select pg_column_size(hstore(v))
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= pg_column_size('a=>1, b=>"foo", c=>"1.2", d=>"3", e=>"0"'::hstore)
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|
|
|
|
from testhstore1 v;
|
2011-11-08 14:07:21 +01:00
|
|
|
select populate_record(v, hstore('c', '3.45')) from testhstore1 v;
|
|
|
|
|
select populate_record(v, hstore('d', '3.45')) from testhstore1 v;
|
|
|
|
|
select populate_record(v, hstore('e', '123')) from testhstore1 v;
|
|
|
|
|
select populate_record(v, hstore('e', null)) from testhstore1 v;
|
|
|
|
|
select populate_record(v, hstore('c', null)) from testhstore1 v;
|
|
|
|
|
select populate_record(v, hstore('b', 'foo') || hstore('a', '123')) from testhstore1 v;
|
|
|
|
|
select populate_record(v, hstore('b', 'foo') || hstore('e', null)) from testhstore0 v;
|
|
|
|
|
select populate_record(v, hstore('b', 'foo') || hstore('e', null)) from testhstore1 v;
|
2009-09-30 21:50:22 +02:00
|
|
|
select populate_record(v, '') from testhstore0 v;
|
|
|
|
|
select populate_record(v, '') from testhstore1 v;
|
2011-11-08 14:07:21 +01:00
|
|
|
select populate_record(null::testhstore1, hstore('c', '3.45') || hstore('a', '123'));
|
|
|
|
|
select populate_record(null::testhstore1, hstore('c', '3.45') || hstore('e', '123'));
|
2009-09-30 21:50:22 +02:00
|
|
|
select populate_record(null::testhstore0, '');
|
|
|
|
|
select populate_record(null::testhstore1, '');
|
2011-11-08 14:07:21 +01:00
|
|
|
select v #= hstore('c', '3.45') from testhstore1 v;
|
|
|
|
|
select v #= hstore('d', '3.45') from testhstore1 v;
|
|
|
|
|
select v #= hstore('e', '123') from testhstore1 v;
|
|
|
|
|
select v #= hstore('c', null) from testhstore1 v;
|
|
|
|
|
select v #= hstore('e', null) from testhstore0 v;
|
|
|
|
|
select v #= hstore('e', null) from testhstore1 v;
|
|
|
|
|
select v #= (hstore('b', 'foo') || hstore('a', '123')) from testhstore1 v;
|
|
|
|
|
select v #= (hstore('b', 'foo') || hstore('e', '123')) from testhstore1 v;
|
2009-09-30 21:50:22 +02:00
|
|
|
select v #= hstore '' from testhstore0 v;
|
|
|
|
|
select v #= hstore '' from testhstore1 v;
|
2011-11-08 14:07:21 +01:00
|
|
|
select null::testhstore1 #= (hstore('c', '3.45') || hstore('a', '123'));
|
|
|
|
|
select null::testhstore1 #= (hstore('c', '3.45') || hstore('e', '123'));
|
2009-09-30 21:50:22 +02:00
|
|
|
select null::testhstore0 #= hstore '';
|
|
|
|
|
select null::testhstore1 #= hstore '';
|
|
|
|
|
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;
|
2006-09-05 20:00:58 +02:00
|
|
|
|
|
|
|
|
-- keys/values
|
|
|
|
|
select akeys('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f');
|
|
|
|
|
select akeys('""=>1');
|
|
|
|
|
select akeys('');
|
|
|
|
|
select avals('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f');
|
|
|
|
|
select avals('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>NULL');
|
|
|
|
|
select avals('""=>1');
|
|
|
|
|
select avals('');
|
|
|
|
|
|
2009-09-30 21:50:22 +02:00
|
|
|
select hstore_to_array('aa=>1, cq=>l, b=>g, fg=>NULL'::hstore);
|
|
|
|
|
select %% 'aa=>1, cq=>l, b=>g, fg=>NULL';
|
|
|
|
|
|
|
|
|
|
select hstore_to_matrix('aa=>1, cq=>l, b=>g, fg=>NULL'::hstore);
|
|
|
|
|
select %# 'aa=>1, cq=>l, b=>g, fg=>NULL';
|
|
|
|
|
|
2006-09-05 20:00:58 +02:00
|
|
|
select * from skeys('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f');
|
|
|
|
|
select * from skeys('""=>1');
|
|
|
|
|
select * from skeys('');
|
|
|
|
|
select * from svals('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>f');
|
|
|
|
|
select *, svals is null from svals('aa=>1 , b=>2, cq=>3'::hstore || 'cq=>l, b=>g, fg=>NULL');
|
|
|
|
|
select * from svals('""=>1');
|
|
|
|
|
select * from svals('');
|
|
|
|
|
|
|
|
|
|
select * from each('aaa=>bq, b=>NULL, ""=>1 ');
|
|
|
|
|
|
2006-09-10 19:36:52 +02:00
|
|
|
-- @>
|
2007-03-14 15:21:53 +01:00
|
|
|
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b';
|
|
|
|
|
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b, c=>NULL';
|
|
|
|
|
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b, g=>NULL';
|
2006-09-10 19:36:52 +02:00
|
|
|
select 'a=>b, b=>1, c=>NULL'::hstore @> 'g=>NULL';
|
|
|
|
|
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>c';
|
|
|
|
|
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b';
|
|
|
|
|
select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b, c=>q';
|
2006-09-05 20:00:58 +02:00
|
|
|
|
|
|
|
|
CREATE TABLE testhstore (h hstore);
|
|
|
|
|
\copy testhstore from 'data/hstore.data'
|
|
|
|
|
|
2006-09-10 19:36:52 +02:00
|
|
|
select count(*) from testhstore where h @> 'wait=>NULL';
|
|
|
|
|
select count(*) from testhstore where h @> 'wait=>CC';
|
|
|
|
|
select count(*) from testhstore where h @> 'wait=>CC, public=>t';
|
2007-03-14 15:21:53 +01:00
|
|
|
select count(*) from testhstore where h ? 'public';
|
2009-09-30 21:50:22 +02:00
|
|
|
select count(*) from testhstore where h ?| ARRAY['public','disabled'];
|
|
|
|
|
select count(*) from testhstore where h ?& ARRAY['public','disabled'];
|
2006-09-05 20:00:58 +02:00
|
|
|
|
|
|
|
|
create index hidx on testhstore using gist(h);
|
|
|
|
|
set enable_seqscan=off;
|
|
|
|
|
|
2006-09-10 19:36:52 +02:00
|
|
|
select count(*) from testhstore where h @> 'wait=>NULL';
|
|
|
|
|
select count(*) from testhstore where h @> 'wait=>CC';
|
|
|
|
|
select count(*) from testhstore where h @> 'wait=>CC, public=>t';
|
2007-03-14 15:21:53 +01:00
|
|
|
select count(*) from testhstore where h ? 'public';
|
2009-09-30 21:50:22 +02:00
|
|
|
select count(*) from testhstore where h ?| ARRAY['public','disabled'];
|
Implement operator class parameters
PostgreSQL provides set of template index access methods, where opclasses have
much freedom in the semantics of indexing. These index AMs are GiST, GIN,
SP-GiST and BRIN. There opclasses define representation of keys, operations on
them and supported search strategies. So, it's natural that opclasses may be
faced some tradeoffs, which require user-side decision. This commit implements
opclass parameters allowing users to set some values, which tell opclass how to
index the particular dataset.
This commit doesn't introduce new storage in system catalog. Instead it uses
pg_attribute.attoptions, which is used for table column storage options but
unused for index attributes.
In order to evade changing signature of each opclass support function, we
implement unified way to pass options to opclass support functions. Options
are set to fn_expr as the constant bytea expression. It's possible due to the
fact that opclass support functions are executed outside of expressions, so
fn_expr is unused for them.
This commit comes with some examples of opclass options usage. We parametrize
signature length in GiST. That applies to multiple opclasses: tsvector_ops,
gist__intbig_ops, gist_ltree_ops, gist__ltree_ops, gist_trgm_ops and
gist_hstore_ops. Also we parametrize maximum number of integer ranges for
gist__int_ops. However, the main future usage of this feature is expected
to be json, where users would be able to specify which way to index particular
json parts.
Catversion is bumped.
Discussion: https://postgr.es/m/d22c3a18-31c7-1879-fc11-4c1ce2f5e5af%40postgrespro.ru
Author: Nikita Glukhov, revised by me
Reviwed-by: Nikolay Shaplov, Robert Haas, Tom Lane, Tomas Vondra, Alvaro Herrera
2020-03-30 18:17:11 +02:00
|
|
|
select count(*) from testhstore where h ?& ARRAY['public','disabled'];
|
|
|
|
|
|
|
|
|
|
drop index hidx;
|
|
|
|
|
create index hidx on testhstore using gist(h gist_hstore_ops(siglen=0));
|
|
|
|
|
create index hidx on testhstore using gist(h gist_hstore_ops(siglen=2025));
|
|
|
|
|
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';
|
|
|
|
|
select count(*) from testhstore where h @> 'wait=>CC';
|
|
|
|
|
select count(*) from testhstore where h @> 'wait=>CC, public=>t';
|
|
|
|
|
select count(*) from testhstore where h ? 'public';
|
|
|
|
|
select count(*) from testhstore where h ?| ARRAY['public','disabled'];
|
2009-09-30 21:50:22 +02:00
|
|
|
select count(*) from testhstore where h ?& ARRAY['public','disabled'];
|
2007-03-14 15:21:53 +01:00
|
|
|
|
|
|
|
|
drop index hidx;
|
|
|
|
|
create index hidx on testhstore using gin (h);
|
|
|
|
|
set enable_seqscan=off;
|
|
|
|
|
|
|
|
|
|
select count(*) from testhstore where h @> 'wait=>NULL';
|
|
|
|
|
select count(*) from testhstore where h @> 'wait=>CC';
|
|
|
|
|
select count(*) from testhstore where h @> 'wait=>CC, public=>t';
|
|
|
|
|
select count(*) from testhstore where h ? 'public';
|
2009-09-30 21:50:22 +02:00
|
|
|
select count(*) from testhstore where h ?| ARRAY['public','disabled'];
|
|
|
|
|
select count(*) from testhstore where h ?& ARRAY['public','disabled'];
|
2006-09-05 20:00:58 +02:00
|
|
|
|
|
|
|
|
select count(*) from (select (each(h)).key from testhstore) as wow ;
|
|
|
|
|
select key, count(*) from (select (each(h)).key from testhstore) as wow group by key order by count desc, key;
|
2009-09-30 21:50:22 +02:00
|
|
|
|
|
|
|
|
-- sort/hash
|
|
|
|
|
select count(distinct h) from testhstore;
|
|
|
|
|
set enable_hashagg = false;
|
|
|
|
|
select count(*) from (select h from (select * from testhstore union all select * from testhstore) hs group by h) hs2;
|
|
|
|
|
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;
|
|
|
|
|
select distinct * from (values (hstore '' || ''),('')) v(h);
|
|
|
|
|
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';
|
|
|
|
|
select count(*) from testhstore where h = 'pos=>98, line=>371, node=>CBA, indexed=>t';
|
2013-03-10 22:35:36 +01:00
|
|
|
|
Introduce jsonb, a structured format for storing json.
The new format accepts exactly the same data as the json type. However, it is
stored in a format that does not require reparsing the orgiginal text in order
to process it, making it much more suitable for indexing and other operations.
Insignificant whitespace is discarded, and the order of object keys is not
preserved. Neither are duplicate object keys kept - the later value for a given
key is the only one stored.
The new type has all the functions and operators that the json type has,
with the exception of the json generation functions (to_json, json_agg etc.)
and with identical semantics. In addition, there are operator classes for
hash and btree indexing, and two classes for GIN indexing, that have no
equivalent in the json type.
This feature grew out of previous work by Oleg Bartunov and Teodor Sigaev, which
was intended to provide similar facilities to a nested hstore type, but which
in the end proved to have some significant compatibility issues.
Authors: Oleg Bartunov, Teodor Sigaev, Peter Geoghegan and Andrew Dunstan.
Review: Andres Freund
2014-03-23 21:40:19 +01:00
|
|
|
-- json and jsonb
|
2013-03-10 22:35:36 +01:00
|
|
|
select hstore_to_json('"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4');
|
|
|
|
|
select cast( hstore '"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4' as json);
|
2016-02-03 07:39:08 +01:00
|
|
|
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"');
|
2013-03-10 22:35:36 +01:00
|
|
|
|
Introduce jsonb, a structured format for storing json.
The new format accepts exactly the same data as the json type. However, it is
stored in a format that does not require reparsing the orgiginal text in order
to process it, making it much more suitable for indexing and other operations.
Insignificant whitespace is discarded, and the order of object keys is not
preserved. Neither are duplicate object keys kept - the later value for a given
key is the only one stored.
The new type has all the functions and operators that the json type has,
with the exception of the json generation functions (to_json, json_agg etc.)
and with identical semantics. In addition, there are operator classes for
hash and btree indexing, and two classes for GIN indexing, that have no
equivalent in the json type.
This feature grew out of previous work by Oleg Bartunov and Teodor Sigaev, which
was intended to provide similar facilities to a nested hstore type, but which
in the end proved to have some significant compatibility issues.
Authors: Oleg Bartunov, Teodor Sigaev, Peter Geoghegan and Andrew Dunstan.
Review: Andres Freund
2014-03-23 21:40:19 +01:00
|
|
|
select hstore_to_jsonb('"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4');
|
|
|
|
|
select cast( hstore '"a key" =>1, b => t, c => null, d=> 12345, e => 012345, f=> 1.234, g=> 2.345e+4' as jsonb);
|
2016-02-03 07:39:08 +01:00
|
|
|
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"');
|
Introduce jsonb, a structured format for storing json.
The new format accepts exactly the same data as the json type. However, it is
stored in a format that does not require reparsing the orgiginal text in order
to process it, making it much more suitable for indexing and other operations.
Insignificant whitespace is discarded, and the order of object keys is not
preserved. Neither are duplicate object keys kept - the later value for a given
key is the only one stored.
The new type has all the functions and operators that the json type has,
with the exception of the json generation functions (to_json, json_agg etc.)
and with identical semantics. In addition, there are operator classes for
hash and btree indexing, and two classes for GIN indexing, that have no
equivalent in the json type.
This feature grew out of previous work by Oleg Bartunov and Teodor Sigaev, which
was intended to provide similar facilities to a nested hstore type, but which
in the end proved to have some significant compatibility issues.
Authors: Oleg Bartunov, Teodor Sigaev, Peter Geoghegan and Andrew Dunstan.
Review: Andres Freund
2014-03-23 21:40:19 +01:00
|
|
|
|
2013-03-10 22:35:36 +01:00
|
|
|
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;
|
|
|
|
|
select json_agg(q) from (select f1, hstore_to_json_loose(f2) as f2 from test_json_agg) q;
|
2018-11-23 19:37:34 +01:00
|
|
|
|
2020-12-12 00:58:07 +01:00
|
|
|
-- Test subscripting
|
|
|
|
|
insert into test_json_agg default values;
|
|
|
|
|
select f2['d'], f2['x'] is null as x_isnull from test_json_agg;
|
|
|
|
|
select f2['d']['e'] from test_json_agg; -- error
|
|
|
|
|
select f2['d':'e'] from test_json_agg; -- error
|
|
|
|
|
update test_json_agg set f2['d'] = f2['e'], f2['x'] = 'xyzzy';
|
|
|
|
|
select f2 from test_json_agg;
|
|
|
|
|
|
2021-01-04 17:52:00 +01:00
|
|
|
-- Test subscripting in plpgsql
|
|
|
|
|
do $$ declare h hstore;
|
|
|
|
|
begin h['a'] := 'b'; raise notice 'h = %, h[a] = %', h, h['a']; end $$;
|
|
|
|
|
|
2018-11-23 19:37:34 +01:00
|
|
|
-- 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);
|
