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Resurrect the code for the rewrite(ARRAY[...]) aggregate function,

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and put it into contrib/tsearch2 compatibility module.
This commit is contained in:
Tom Lane
2007-11-13 22:14:50 +00:00
parent abd183e4e7
commit 4394c1b09c
6 changed files with 253 additions and 28 deletions
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90
contrib/tsearch2/expected/tsearch2.out
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@ -472,6 +472,24 @@ select rewrite('bar & new & qq & foo & york', 'select keyword, sample from test
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | ( 'big' & 'appl' | 'new' & 'york' ) )
(1 row)
select rewrite( ARRAY['moscow', keyword, sample] ) from test_tsquery;
rewrite
---------------------
'moskva' | 'moscow'
(1 row)
select rewrite( ARRAY['moscow & hotel', keyword, sample] ) from test_tsquery;
rewrite
-----------------------------------
( 'moskva' | 'moscow' ) & 'hotel'
(1 row)
select rewrite( ARRAY['bar & new & qq & foo & york', keyword, sample] ) from test_tsquery;
rewrite
-------------------------------------------------------------------------------------
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | ( 'big' & 'appl' | 'new' & 'york' ) )
(1 row)
select keyword from test_tsquery where keyword @> 'new';
keyword
----------------
@ -495,6 +513,42 @@ select keyword from test_tsquery where keyword <@ 'moscow';
'moscow'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'moscow') as query where keyword <@ query;
rewrite
---------------------
'moskva' | 'moscow'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'moscow & hotel') as query where keyword <@ query;
rewrite
-----------------------------------
( 'moskva' | 'moscow' ) & 'hotel'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'bar & new & qq & foo & york') as query where keyword <@ query;
rewrite
-------------------------------------------------------------------------------------
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | ( 'big' & 'appl' | 'new' & 'york' ) )
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'moscow') as query where query @> keyword;
rewrite
---------------------
'moskva' | 'moscow'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'moscow & hotel') as query where query @> keyword;
rewrite
-----------------------------------
( 'moskva' | 'moscow' ) & 'hotel'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'bar & new & qq & foo & york') as query where query @> keyword;
rewrite
-------------------------------------------------------------------------------------
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | ( 'big' & 'appl' | 'new' & 'york' ) )
(1 row)
create index qq on test_tsquery using gist (keyword gist_tp_tsquery_ops);
set enable_seqscan='off';
select keyword from test_tsquery where keyword @> 'new';
@ -520,6 +574,42 @@ select keyword from test_tsquery where keyword <@ 'moscow';
'moscow'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'moscow') as query where keyword <@ query;
rewrite
---------------------
'moskva' | 'moscow'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'moscow & hotel') as query where keyword <@ query;
rewrite
-----------------------------------
( 'moskva' | 'moscow' ) & 'hotel'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'bar & new & qq & foo & york') as query where keyword <@ query;
rewrite
-------------------------------------------------------------------------------------
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | ( 'big' & 'appl' | 'new' & 'york' ) )
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'moscow') as query where query @> keyword;
rewrite
---------------------
'moskva' | 'moscow'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'moscow & hotel') as query where query @> keyword;
rewrite
-----------------------------------
( 'moskva' | 'moscow' ) & 'hotel'
(1 row)
select rewrite( ARRAY[query, keyword, sample] ) from test_tsquery, to_tsquery('english', 'bar & new & qq & foo & york') as query where query @> keyword;
rewrite
-------------------------------------------------------------------------------------
'citi' & 'foo' & ( 'bar' | 'qq' ) & ( 'nyc' | ( 'big' & 'appl' | 'new' & 'york' ) )
(1 row)
set enable_seqscan='on';
select lexize('simple', 'ASD56 hsdkf');
lexize