Fix parsing of complex morphs to tsquery
When to_tsquery() or websearch_to_tsquery() meet a complex morph containing
multiple words residing adjacent position, these words are connected
with OP_AND operator. That leads to surprising results. For instace,
both websearch_to_tsquery('"pg_class pg"') and to_tsquery('pg_class <-> pg')
produce '( pg & class ) <-> pg' tsquery. This tsquery requires
'pg' and 'class' words to reside on the same position and doesn't match
to to_tsvector('pg_class pg'). It appears to be ridiculous behavior, which
needs to be fixed.
This commit makes to_tsquery() or websearch_to_tsquery() connect words
residing adjacent position with OP_PHRASE. Therefore, now those words are
normally chained with other OP_PHRASE operator. The examples of above now
produces 'pg <-> class <-> pg' tsquery, which matches to
to_tsvector('pg_class pg').
Another effect of this commit is that complex morph word positions now need to
match the tsvector even if there is no surrounding OP_PHRASE. This behavior
change generally looks like an improvement but making this commit not
backpatchable.
Reported-by: Barry Pederson
Bug: #16592
Discussion: https://postgr.es/m/16592-70b110ff9731c07d@postgresql.org
Discussion: https://postgr.es/m/CAPpHfdv0EzVhf6CWfB1_TTZqXV_2Sn-jSY3zSd7ePH%3D-%2B1V2DQ%40mail.gmail.com
Author: Alexander Korotkov
Reviewed-by: Tom Lane, Neil Chen
This commit is contained in:
Alexander Korotkov
parent
dfb75e478c
commit
0c4f355c6a
|
|
@ -20,10 +20,20 @@
|
|||
#include "utils/jsonfuncs.h"
|
||||
|
||||
|
||||
/*
|
||||
* Opaque data structure, which is passed by parse_tsquery() to pushval_morph().
|
||||
*/
|
||||
typedef struct MorphOpaque
|
||||
{
|
||||
Oid cfg_id;
|
||||
int qoperator; /* query operator */
|
||||
|
||||
/*
|
||||
* Single tsquery morph could be parsed into multiple words. When these
|
||||
* words reside in adjacent positions, they are connected using this
|
||||
* operator. Usually, that is OP_PHRASE, which requires word positions of
|
||||
* a complex morph to exactly match the tsvector.
|
||||
*/
|
||||
int qoperator;
|
||||
} MorphOpaque;
|
||||
|
||||
typedef struct TSVectorBuildState
|
||||
|
|
@ -573,7 +583,14 @@ to_tsquery_byid(PG_FUNCTION_ARGS)
|
|||
MorphOpaque data;
|
||||
|
||||
data.cfg_id = PG_GETARG_OID(0);
|
||||
data.qoperator = OP_AND;
|
||||
|
||||
/*
|
||||
* Passing OP_PHRASE as a qoperator makes tsquery require matching of word
|
||||
* positions of a complex morph exactly match the tsvector. Also, when
|
||||
* the complex morphs are connected with OP_PHRASE operator, we connect
|
||||
* all their words into the OP_PHRASE sequence.
|
||||
*/
|
||||
data.qoperator = OP_PHRASE;
|
||||
|
||||
query = parse_tsquery(text_to_cstring(in),
|
||||
pushval_morph,
|
||||
|
|
@ -603,6 +620,12 @@ plainto_tsquery_byid(PG_FUNCTION_ARGS)
|
|||
MorphOpaque data;
|
||||
|
||||
data.cfg_id = PG_GETARG_OID(0);
|
||||
|
||||
/*
|
||||
* parse_tsquery() with P_TSQ_PLAIN flag takes the whole input text as a
|
||||
* single morph. Passing OP_PHRASE as a qoperator makes tsquery require
|
||||
* matching of all words independently on their positions.
|
||||
*/
|
||||
data.qoperator = OP_AND;
|
||||
|
||||
query = parse_tsquery(text_to_cstring(in),
|
||||
|
|
@ -634,6 +657,12 @@ phraseto_tsquery_byid(PG_FUNCTION_ARGS)
|
|||
MorphOpaque data;
|
||||
|
||||
data.cfg_id = PG_GETARG_OID(0);
|
||||
|
||||
/*
|
||||
* parse_tsquery() with P_TSQ_PLAIN flag takes the whole input text as a
|
||||
* single morph. Passing OP_PHRASE as a qoperator makes tsquery require
|
||||
* matching of word positions.
|
||||
*/
|
||||
data.qoperator = OP_PHRASE;
|
||||
|
||||
query = parse_tsquery(text_to_cstring(in),
|
||||
|
|
@ -665,7 +694,13 @@ websearch_to_tsquery_byid(PG_FUNCTION_ARGS)
|
|||
|
||||
data.cfg_id = PG_GETARG_OID(0);
|
||||
|
||||
data.qoperator = OP_AND;
|
||||
/*
|
||||
* Passing OP_PHRASE as a qoperator makes tsquery require matching of word
|
||||
* positions of a complex morph exactly match the tsvector. Also, when
|
||||
* the complex morphs are given in quotes, we connect all their words into
|
||||
* the OP_PHRASE sequence.
|
||||
*/
|
||||
data.qoperator = OP_PHRASE;
|
||||
|
||||
query = parse_tsquery(text_to_cstring(in),
|
||||
pushval_morph,
|
||||
|
|
|
|||
|
|
@ -1997,31 +1997,31 @@ ALTER TABLE test_tsquery ADD COLUMN keyword tsquery;
|
|||
UPDATE test_tsquery SET keyword = to_tsquery('english', txtkeyword);
|
||||
ALTER TABLE test_tsquery ADD COLUMN sample tsquery;
|
||||
UPDATE test_tsquery SET sample = to_tsquery('english', txtsample::text);
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new <-> york';
|
||||
count
|
||||
-------
|
||||
2
|
||||
(1 row)
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new <-> york';
|
||||
count
|
||||
-------
|
||||
3
|
||||
(1 row)
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new <-> york';
|
||||
count
|
||||
-------
|
||||
1
|
||||
(1 row)
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new <-> york';
|
||||
count
|
||||
-------
|
||||
4
|
||||
(1 row)
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new <-> york';
|
||||
count
|
||||
-------
|
||||
3
|
||||
|
|
@ -2029,31 +2029,31 @@ SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new & york';
|
|||
|
||||
CREATE UNIQUE INDEX bt_tsq ON test_tsquery (keyword);
|
||||
SET enable_seqscan=OFF;
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new <-> york';
|
||||
count
|
||||
-------
|
||||
2
|
||||
(1 row)
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new <-> york';
|
||||
count
|
||||
-------
|
||||
3
|
||||
(1 row)
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new <-> york';
|
||||
count
|
||||
-------
|
||||
1
|
||||
(1 row)
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new <-> york';
|
||||
count
|
||||
-------
|
||||
4
|
||||
(1 row)
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new <-> york';
|
||||
count
|
||||
-------
|
||||
3
|
||||
|
|
@ -2085,10 +2085,10 @@ SELECT ts_rewrite('moscow & hotel', 'SELECT keyword, sample FROM test_tsquery'::
|
|||
'hotel' & ( 'moskva' | 'moscow' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite('bar & new & qq & foo & york', 'SELECT keyword, sample FROM test_tsquery'::text );
|
||||
ts_rewrite
|
||||
---------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' & 'appl' | 'new' & 'york' )
|
||||
SELECT ts_rewrite('bar & qq & foo & (new <-> york)', 'SELECT keyword, sample FROM test_tsquery'::text );
|
||||
ts_rewrite
|
||||
-------------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' <-> 'appl' | 'new' <-> 'york' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite( 'moscow', 'SELECT keyword, sample FROM test_tsquery');
|
||||
|
|
@ -2103,10 +2103,10 @@ SELECT ts_rewrite( 'moscow & hotel', 'SELECT keyword, sample FROM test_tsquery')
|
|||
'hotel' & ( 'moskva' | 'moscow' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite( 'bar & new & qq & foo & york', 'SELECT keyword, sample FROM test_tsquery');
|
||||
ts_rewrite
|
||||
---------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' & 'appl' | 'new' & 'york' )
|
||||
SELECT ts_rewrite( 'bar & qq & foo & (new <-> york)', 'SELECT keyword, sample FROM test_tsquery');
|
||||
ts_rewrite
|
||||
-------------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' <-> 'appl' | 'new' <-> 'york' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite('1 & (2 <-> 3)', 'SELECT keyword, sample FROM test_tsquery'::text );
|
||||
|
|
@ -2149,9 +2149,9 @@ NOTICE: text-search query doesn't contain lexemes: ""
|
|||
(1 row)
|
||||
|
||||
SELECT keyword FROM test_tsquery WHERE keyword @> 'new';
|
||||
keyword
|
||||
----------------
|
||||
'new' & 'york'
|
||||
keyword
|
||||
------------------
|
||||
'new' <-> 'york'
|
||||
(1 row)
|
||||
|
||||
SELECT keyword FROM test_tsquery WHERE keyword @> 'moscow';
|
||||
|
|
@ -2183,10 +2183,10 @@ SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_t
|
|||
'hotel' & ( 'moskva' | 'moscow' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
|
||||
ts_rewrite
|
||||
---------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' & 'appl' | 'new' & 'york' )
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & qq & foo & (new <-> york)') AS query;
|
||||
ts_rewrite
|
||||
-------------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' <-> 'appl' | 'new' <-> 'york' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
|
||||
|
|
@ -2201,18 +2201,18 @@ SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_t
|
|||
'hotel' & ( 'moskva' | 'moscow' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
|
||||
ts_rewrite
|
||||
---------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' & 'appl' | 'new' & 'york' )
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & qq & foo & (new <-> york)') AS query;
|
||||
ts_rewrite
|
||||
-------------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' <-> 'appl' | 'new' <-> 'york' )
|
||||
(1 row)
|
||||
|
||||
CREATE INDEX qq ON test_tsquery USING gist (keyword tsquery_ops);
|
||||
SET enable_seqscan=OFF;
|
||||
SELECT keyword FROM test_tsquery WHERE keyword @> 'new';
|
||||
keyword
|
||||
----------------
|
||||
'new' & 'york'
|
||||
keyword
|
||||
------------------
|
||||
'new' <-> 'york'
|
||||
(1 row)
|
||||
|
||||
SELECT keyword FROM test_tsquery WHERE keyword @> 'moscow';
|
||||
|
|
@ -2244,10 +2244,10 @@ SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_t
|
|||
'hotel' & ( 'moskva' | 'moscow' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
|
||||
ts_rewrite
|
||||
---------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' & 'appl' | 'new' & 'york' )
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & qq & foo & (new <-> york)') AS query;
|
||||
ts_rewrite
|
||||
-------------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' <-> 'appl' | 'new' <-> 'york' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
|
||||
|
|
@ -2262,10 +2262,10 @@ SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_t
|
|||
'hotel' & ( 'moskva' | 'moscow' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
|
||||
ts_rewrite
|
||||
---------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' & 'appl' | 'new' & 'york' )
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & qq & foo & (new <-> york)') AS query;
|
||||
ts_rewrite
|
||||
-------------------------------------------------------------------------------------
|
||||
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | 'big' <-> 'appl' | 'new' <-> 'york' )
|
||||
(1 row)
|
||||
|
||||
SELECT ts_rewrite(tsquery_phrase('foo', 'foo'), 'foo', 'bar | baz');
|
||||
|
|
@ -2456,19 +2456,19 @@ select websearch_to_tsquery('simple', 'fat:A : cat:B');
|
|||
select websearch_to_tsquery('simple', 'fat*rat');
|
||||
websearch_to_tsquery
|
||||
----------------------
|
||||
'fat' & 'rat'
|
||||
'fat' <-> 'rat'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('simple', 'fat-rat');
|
||||
websearch_to_tsquery
|
||||
---------------------------
|
||||
'fat-rat' & 'fat' & 'rat'
|
||||
websearch_to_tsquery
|
||||
-------------------------------
|
||||
'fat-rat' <-> 'fat' <-> 'rat'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('simple', 'fat_rat');
|
||||
websearch_to_tsquery
|
||||
----------------------
|
||||
'fat' & 'rat'
|
||||
'fat' <-> 'rat'
|
||||
(1 row)
|
||||
|
||||
-- weights are completely ignored
|
||||
|
|
@ -2665,64 +2665,64 @@ select websearch_to_tsquery('simple', 'abc OR1234');
|
|||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('simple', 'abc or-abc');
|
||||
websearch_to_tsquery
|
||||
---------------------------------
|
||||
'abc' & 'or-abc' & 'or' & 'abc'
|
||||
websearch_to_tsquery
|
||||
-------------------------------------
|
||||
'abc' & 'or-abc' <-> 'or' <-> 'abc'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('simple', 'abc OR_abc');
|
||||
websearch_to_tsquery
|
||||
----------------------
|
||||
'abc' & 'or' & 'abc'
|
||||
websearch_to_tsquery
|
||||
------------------------
|
||||
'abc' & 'or' <-> 'abc'
|
||||
(1 row)
|
||||
|
||||
-- test quotes
|
||||
select websearch_to_tsquery('english', '"pg_class pg');
|
||||
websearch_to_tsquery
|
||||
-----------------------
|
||||
'pg' & 'class' & 'pg'
|
||||
websearch_to_tsquery
|
||||
-------------------------
|
||||
'pg' <-> 'class' & 'pg'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('english', 'pg_class pg"');
|
||||
websearch_to_tsquery
|
||||
-----------------------
|
||||
'pg' & 'class' & 'pg'
|
||||
websearch_to_tsquery
|
||||
-------------------------
|
||||
'pg' <-> 'class' & 'pg'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('english', '"pg_class pg"');
|
||||
websearch_to_tsquery
|
||||
-----------------------------
|
||||
( 'pg' & 'class' ) <-> 'pg'
|
||||
websearch_to_tsquery
|
||||
---------------------------
|
||||
'pg' <-> 'class' <-> 'pg'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('english', 'abc "pg_class pg"');
|
||||
websearch_to_tsquery
|
||||
-------------------------------------
|
||||
'abc' & ( 'pg' & 'class' ) <-> 'pg'
|
||||
websearch_to_tsquery
|
||||
-----------------------------------
|
||||
'abc' & 'pg' <-> 'class' <-> 'pg'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('english', '"pg_class pg" def');
|
||||
websearch_to_tsquery
|
||||
-------------------------------------
|
||||
( 'pg' & 'class' ) <-> 'pg' & 'def'
|
||||
websearch_to_tsquery
|
||||
-----------------------------------
|
||||
'pg' <-> 'class' <-> 'pg' & 'def'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('english', 'abc "pg pg_class pg" def');
|
||||
websearch_to_tsquery
|
||||
------------------------------------------------------
|
||||
'abc' & 'pg' <-> ( 'pg' & 'class' ) <-> 'pg' & 'def'
|
||||
websearch_to_tsquery
|
||||
--------------------------------------------------------
|
||||
'abc' & 'pg' <-> ( 'pg' <-> 'class' ) <-> 'pg' & 'def'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('english', ' or "pg pg_class pg" or ');
|
||||
websearch_to_tsquery
|
||||
--------------------------------------
|
||||
'pg' <-> ( 'pg' & 'class' ) <-> 'pg'
|
||||
websearch_to_tsquery
|
||||
----------------------------------------
|
||||
'pg' <-> ( 'pg' <-> 'class' ) <-> 'pg'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('english', '""pg pg_class pg""');
|
||||
websearch_to_tsquery
|
||||
------------------------------
|
||||
'pg' & 'pg' & 'class' & 'pg'
|
||||
websearch_to_tsquery
|
||||
--------------------------------
|
||||
'pg' & 'pg' <-> 'class' & 'pg'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('english', 'abc """"" def');
|
||||
|
|
@ -2829,7 +2829,7 @@ NOTICE: text-search query contains only stop words or doesn't contain lexemes,
|
|||
select websearch_to_tsquery('''abc''''def''');
|
||||
websearch_to_tsquery
|
||||
----------------------
|
||||
'abc' & 'def'
|
||||
'abc' <-> 'def'
|
||||
(1 row)
|
||||
|
||||
select websearch_to_tsquery('\abc');
|
||||
|
|
|
|||
|
|
@ -554,10 +554,10 @@ to_tsquery('english','Lorem') && phraseto_tsquery('english','ullamcorper urna'),
|
|||
CREATE TABLE test_tsquery (txtkeyword TEXT, txtsample TEXT);
|
||||
\set ECHO none
|
||||
\copy test_tsquery from stdin
|
||||
'New York' new & york | big & apple | nyc
|
||||
'New York' new <-> york | big <-> apple | nyc
|
||||
Moscow moskva | moscow
|
||||
'Sanct Peter' Peterburg | peter | 'Sanct Peterburg'
|
||||
'foo bar qq' foo & (bar | qq) & city
|
||||
foo & bar & qq foo & (bar | qq) & city
|
||||
1 & (2 <-> 3) 2 <-> 4
|
||||
5 <-> 6 5 <-> 7
|
||||
\.
|
||||
|
|
@ -569,21 +569,21 @@ ALTER TABLE test_tsquery ADD COLUMN sample tsquery;
|
|||
UPDATE test_tsquery SET sample = to_tsquery('english', txtsample::text);
|
||||
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new <-> york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new <-> york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new <-> york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new <-> york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new <-> york';
|
||||
|
||||
CREATE UNIQUE INDEX bt_tsq ON test_tsquery (keyword);
|
||||
|
||||
SET enable_seqscan=OFF;
|
||||
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new & york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new <-> york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new <-> york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new <-> york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new <-> york';
|
||||
SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new <-> york';
|
||||
|
||||
RESET enable_seqscan;
|
||||
|
||||
|
|
@ -593,11 +593,11 @@ SELECT ts_rewrite(ts_rewrite('new & !york ', 'york', '!jersey'),
|
|||
|
||||
SELECT ts_rewrite('moscow', 'SELECT keyword, sample FROM test_tsquery'::text );
|
||||
SELECT ts_rewrite('moscow & hotel', 'SELECT keyword, sample FROM test_tsquery'::text );
|
||||
SELECT ts_rewrite('bar & new & qq & foo & york', 'SELECT keyword, sample FROM test_tsquery'::text );
|
||||
SELECT ts_rewrite('bar & qq & foo & (new <-> york)', 'SELECT keyword, sample FROM test_tsquery'::text );
|
||||
|
||||
SELECT ts_rewrite( 'moscow', 'SELECT keyword, sample FROM test_tsquery');
|
||||
SELECT ts_rewrite( 'moscow & hotel', 'SELECT keyword, sample FROM test_tsquery');
|
||||
SELECT ts_rewrite( 'bar & new & qq & foo & york', 'SELECT keyword, sample FROM test_tsquery');
|
||||
SELECT ts_rewrite( 'bar & qq & foo & (new <-> york)', 'SELECT keyword, sample FROM test_tsquery');
|
||||
|
||||
SELECT ts_rewrite('1 & (2 <-> 3)', 'SELECT keyword, sample FROM test_tsquery'::text );
|
||||
SELECT ts_rewrite('1 & (2 <2> 3)', 'SELECT keyword, sample FROM test_tsquery'::text );
|
||||
|
|
@ -614,10 +614,10 @@ SELECT keyword FROM test_tsquery WHERE keyword <@ 'new';
|
|||
SELECT keyword FROM test_tsquery WHERE keyword <@ 'moscow';
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & qq & foo & (new <-> york)') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & qq & foo & (new <-> york)') AS query;
|
||||
|
||||
CREATE INDEX qq ON test_tsquery USING gist (keyword tsquery_ops);
|
||||
SET enable_seqscan=OFF;
|
||||
|
|
@ -628,10 +628,10 @@ SELECT keyword FROM test_tsquery WHERE keyword <@ 'new';
|
|||
SELECT keyword FROM test_tsquery WHERE keyword <@ 'moscow';
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & qq & foo & (new <-> york)') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
|
||||
SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & qq & foo & (new <-> york)') AS query;
|
||||
|
||||
SELECT ts_rewrite(tsquery_phrase('foo', 'foo'), 'foo', 'bar | baz');
|
||||
SELECT to_tsvector('foo bar') @@
|
||||
|
|
|
|||
Loading…
Reference in New Issue