postgresql/src/test/regress/expected/tsearch.out

--
-- Sanity checks for text search catalogs
--
-- NB: we assume the oidjoins test will have caught any dangling links,
-- that is OID or REGPROC fields that are not zero and do not match some
-- row in the linked-to table.  However, if we want to enforce that a link
-- field can't be 0, we have to check it here.
-- Find unexpected zero link entries
SELECT oid, prsname
FROM pg_ts_parser
WHERE prsnamespace = 0 OR prsstart = 0 OR prstoken = 0 OR prsend = 0 OR
      -- prsheadline is optional
      prslextype = 0;
 oid | prsname 
-----+---------
(0 rows)

SELECT oid, dictname
FROM pg_ts_dict
WHERE dictnamespace = 0 OR dictowner = 0 OR dicttemplate = 0;
 oid | dictname 
-----+----------
(0 rows)

SELECT oid, tmplname
FROM pg_ts_template
WHERE tmplnamespace = 0 OR tmpllexize = 0;  -- tmplinit is optional
 oid | tmplname 
-----+----------
(0 rows)

SELECT oid, cfgname
FROM pg_ts_config
WHERE cfgnamespace = 0 OR cfgowner = 0 OR cfgparser = 0;
 oid | cfgname 
-----+---------
(0 rows)

SELECT mapcfg, maptokentype, mapseqno
FROM pg_ts_config_map
WHERE mapcfg = 0 OR mapdict = 0;
 mapcfg | maptokentype | mapseqno 
--------+--------------+----------
(0 rows)

-- Look for pg_ts_config_map entries that aren't one of parser's token types
SELECT * FROM
  ( SELECT oid AS cfgid, (ts_token_type(cfgparser)).tokid AS tokid
    FROM pg_ts_config ) AS tt
RIGHT JOIN pg_ts_config_map AS m
    ON (tt.cfgid=m.mapcfg AND tt.tokid=m.maptokentype)
WHERE
    tt.cfgid IS NULL OR tt.tokid IS NULL;
 cfgid | tokid | mapcfg | maptokentype | mapseqno | mapdict 
-------+-------+--------+--------------+----------+---------
(0 rows)

-- test basic text search behavior without indexes, then with
SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
 count 
-------
   158
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'wr&qh';
 count 
-------
    17
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'eq&yt';
 count 
-------
     6
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'eq|yt';
 count 
-------
    98
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '(eq&yt)|(wr&qh)';
 count 
-------
    23
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '(eq|yt)&(wr|qh)';
 count 
-------
    39
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'w:*|q:*';
 count 
-------
   494
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ any ('{wr,qh}');
 count 
-------
   158
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'no_such_lexeme';
 count 
-------
     0
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '!no_such_lexeme';
 count 
-------
   508
(1 row)

create index wowidx on test_tsvector using gist (a);
SET enable_seqscan=OFF;
SET enable_indexscan=ON;
SET enable_bitmapscan=OFF;
explain (costs off) SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
                      QUERY PLAN                       
-------------------------------------------------------
 Aggregate
   ->  Index Scan using wowidx on test_tsvector
         Index Cond: (a @@ '''wr'' | ''qh'''::tsquery)
(3 rows)

SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
 count 
-------
   158
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'wr&qh';
 count 
-------
    17
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'eq&yt';
 count 
-------
     6
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'eq|yt';
 count 
-------
    98
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '(eq&yt)|(wr&qh)';
 count 
-------
    23
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '(eq|yt)&(wr|qh)';
 count 
-------
    39
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'w:*|q:*';
 count 
-------
   494
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ any ('{wr,qh}');
 count 
-------
   158
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'no_such_lexeme';
 count 
-------
     0
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '!no_such_lexeme';
 count 
-------
   508
(1 row)

SET enable_indexscan=OFF;
SET enable_bitmapscan=ON;
explain (costs off) SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
                         QUERY PLAN                          
-------------------------------------------------------------
 Aggregate
   ->  Bitmap Heap Scan on test_tsvector
         Recheck Cond: (a @@ '''wr'' | ''qh'''::tsquery)
         ->  Bitmap Index Scan on wowidx
               Index Cond: (a @@ '''wr'' | ''qh'''::tsquery)
(5 rows)

SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
 count 
-------
   158
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'wr&qh';
 count 
-------
    17
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'eq&yt';
 count 
-------
     6
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'eq|yt';
 count 
-------
    98
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '(eq&yt)|(wr&qh)';
 count 
-------
    23
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '(eq|yt)&(wr|qh)';
 count 
-------
    39
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'w:*|q:*';
 count 
-------
   494
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ any ('{wr,qh}');
 count 
-------
   158
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'no_such_lexeme';
 count 
-------
     0
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '!no_such_lexeme';
 count 
-------
   508
(1 row)

RESET enable_seqscan;
RESET enable_indexscan;
RESET enable_bitmapscan;
DROP INDEX wowidx;
CREATE INDEX wowidx ON test_tsvector USING gin (a);
SET enable_seqscan=OFF;
-- GIN only supports bitmapscan, so no need to test plain indexscan
explain (costs off) SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
                         QUERY PLAN                          
-------------------------------------------------------------
 Aggregate
   ->  Bitmap Heap Scan on test_tsvector
         Recheck Cond: (a @@ '''wr'' | ''qh'''::tsquery)
         ->  Bitmap Index Scan on wowidx
               Index Cond: (a @@ '''wr'' | ''qh'''::tsquery)
(5 rows)

SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
 count 
-------
   158
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'wr&qh';
 count 
-------
    17
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'eq&yt';
 count 
-------
     6
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'eq|yt';
 count 
-------
    98
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '(eq&yt)|(wr&qh)';
 count 
-------
    23
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '(eq|yt)&(wr|qh)';
 count 
-------
    39
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'w:*|q:*';
 count 
-------
   494
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ any ('{wr,qh}');
 count 
-------
   158
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ 'no_such_lexeme';
 count 
-------
     0
(1 row)

SELECT count(*) FROM test_tsvector WHERE a @@ '!no_such_lexeme';
 count 
-------
   508
(1 row)

RESET enable_seqscan;
INSERT INTO test_tsvector VALUES ('???', 'DFG:1A,2B,6C,10 FGH');
SELECT * FROM ts_stat('SELECT a FROM test_tsvector') ORDER BY ndoc DESC, nentry DESC, word LIMIT 10;
 word | ndoc | nentry 
------+------+--------
 qq   |  108 |    108
 qt   |  102 |    102
 qe   |  100 |    100
 qh   |   98 |     98
 qw   |   98 |     98
 qa   |   97 |     97
 ql   |   94 |     94
 qs   |   94 |     94
 qi   |   92 |     92
 qr   |   92 |     92
(10 rows)

SELECT * FROM ts_stat('SELECT a FROM test_tsvector', 'AB') ORDER BY ndoc DESC, nentry DESC, word;
 word | ndoc | nentry 
------+------+--------
 DFG  |    1 |      2
(1 row)

--dictionaries and to_tsvector
SELECT ts_lexize('english_stem', 'skies');
 ts_lexize 
-----------
 {sky}
(1 row)

SELECT ts_lexize('english_stem', 'identity');
 ts_lexize 
-----------
 {ident}
(1 row)

SELECT * FROM ts_token_type('default');
 tokid |      alias      |               description                
-------+-----------------+------------------------------------------
     1 | asciiword       | Word, all ASCII
     2 | word            | Word, all letters
     3 | numword         | Word, letters and digits
     4 | email           | Email address
     5 | url             | URL
     6 | host            | Host
     7 | sfloat          | Scientific notation
     8 | version         | Version number
     9 | hword_numpart   | Hyphenated word part, letters and digits
    10 | hword_part      | Hyphenated word part, all letters
    11 | hword_asciipart | Hyphenated word part, all ASCII
    12 | blank           | Space symbols
    13 | tag             | XML tag
    14 | protocol        | Protocol head
    15 | numhword        | Hyphenated word, letters and digits
    16 | asciihword      | Hyphenated word, all ASCII
    17 | hword           | Hyphenated word, all letters
    18 | url_path        | URL path
    19 | file            | File or path name
    20 | float           | Decimal notation
    21 | int             | Signed integer
    22 | uint            | Unsigned integer
    23 | entity          | XML entity
(23 rows)

SELECT * FROM ts_parse('default', '345 qwe@efd.r '' http://www.com/ http://aew.werc.ewr/?ad=qwe&dw 1aew.werc.ewr/?ad=qwe&dw 2aew.werc.ewr http://3aew.werc.ewr/?ad=qwe&dw http://4aew.werc.ewr http://5aew.werc.ewr:8100/?  ad=qwe&dw 6aew.werc.ewr:8100/?ad=qwe&dw 7aew.werc.ewr:8100/?ad=qwe&dw=%20%32 +4.0e-10 qwe qwe qwqwe 234.435 455 5.005 teodor@stack.net teodor@123-stack.net 123_teodor@stack.net 123-teodor@stack.net qwe-wer asdf <fr>qwer jf sdjk<we hjwer <werrwe> ewr1> ewri2 <a href="qwe<qwe>">
/usr/local/fff /awdf/dwqe/4325 rewt/ewr wefjn /wqe-324/ewr gist.h gist.h.c gist.c. readline 4.2 4.2. 4.2, readline-4.2 readline-4.2. 234
<i <b> wow  < jqw <> qwerty');
 tokid |                token                 
-------+--------------------------------------
    22 | 345
    12 |  
     1 | qwe
    12 | @
    19 | efd.r
    12 |  ' 
    14 | http://
     6 | www.com
    12 | / 
    14 | http://
     5 | aew.werc.ewr/?ad=qwe&dw
     6 | aew.werc.ewr
    18 | /?ad=qwe&dw
    12 |  
     5 | 1aew.werc.ewr/?ad=qwe&dw
     6 | 1aew.werc.ewr
    18 | /?ad=qwe&dw
    12 |  
     6 | 2aew.werc.ewr
    12 |  
    14 | http://
     5 | 3aew.werc.ewr/?ad=qwe&dw
     6 | 3aew.werc.ewr
    18 | /?ad=qwe&dw
    12 |  
    14 | http://
     6 | 4aew.werc.ewr
    12 |  
    14 | http://
     5 | 5aew.werc.ewr:8100/?
     6 | 5aew.werc.ewr:8100
    18 | /?
    12 |   
     1 | ad
    12 | =
     1 | qwe
    12 | &
     1 | dw
    12 |  
     5 | 6aew.werc.ewr:8100/?ad=qwe&dw
     6 | 6aew.werc.ewr:8100
    18 | /?ad=qwe&dw
    12 |  
     5 | 7aew.werc.ewr:8100/?ad=qwe&dw=%20%32
     6 | 7aew.werc.ewr:8100
    18 | /?ad=qwe&dw=%20%32
    12 |  
     7 | +4.0e-10
    12 |  
     1 | qwe
    12 |  
     1 | qwe
    12 |  
     1 | qwqwe
    12 |  
    20 | 234.435
    12 |  
    22 | 455
    12 |  
    20 | 5.005
    12 |  
     4 | teodor@stack.net
    12 |  
     4 | teodor@123-stack.net
    12 |  
     4 | 123_teodor@stack.net
    12 |  
     4 | 123-teodor@stack.net
    12 |  
    16 | qwe-wer
    11 | qwe
    12 | -
    11 | wer
    12 |  
     1 | asdf
    12 |  
    13 | <fr>
     1 | qwer
    12 |  
     1 | jf
    12 |  
     1 | sdjk
    12 | <
     1 | we
    12 |  
     1 | hjwer
    12 |  
    13 | <werrwe>
    12 |  
     3 | ewr1
    12 | > 
     3 | ewri2
    12 |  
    13 | <a href="qwe<qwe>">
    12 |                                     +
       | 
    19 | /usr/local/fff
    12 |  
    19 | /awdf/dwqe/4325
    12 |  
    19 | rewt/ewr
    12 |  
     1 | wefjn
    12 |  
    19 | /wqe-324/ewr
    12 |  
    19 | gist.h
    12 |  
    19 | gist.h.c
    12 |  
    19 | gist.c
    12 | . 
     1 | readline
    12 |  
    20 | 4.2
    12 |  
    20 | 4.2
    12 | . 
    20 | 4.2
    12 | , 
     1 | readline
    20 | -4.2
    12 |  
     1 | readline
    20 | -4.2
    12 | . 
    22 | 234
    12 |                                     +
       | 
    12 | <
     1 | i
    12 |  
    13 | <b>
    12 |  
     1 | wow
    12 |   
    12 | < 
     1 | jqw
    12 |  
    12 | <> 
     1 | qwerty
(139 rows)

SELECT to_tsvector('english', '345 qwe@efd.r '' http://www.com/ http://aew.werc.ewr/?ad=qwe&dw 1aew.werc.ewr/?ad=qwe&dw 2aew.werc.ewr http://3aew.werc.ewr/?ad=qwe&dw http://4aew.werc.ewr http://5aew.werc.ewr:8100/?  ad=qwe&dw 6aew.werc.ewr:8100/?ad=qwe&dw 7aew.werc.ewr:8100/?ad=qwe&dw=%20%32 +4.0e-10 qwe qwe qwqwe 234.435 455 5.005 teodor@stack.net teodor@123-stack.net 123_teodor@stack.net 123-teodor@stack.net qwe-wer asdf <fr>qwer jf sdjk<we hjwer <werrwe> ewr1> ewri2 <a href="qwe<qwe>">
/usr/local/fff /awdf/dwqe/4325 rewt/ewr wefjn /wqe-324/ewr gist.h gist.h.c gist.c. readline 4.2 4.2. 4.2, readline-4.2 readline-4.2. 234
<i <b> wow  < jqw <> qwerty');
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              to_tsvector                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 '+4.0e-10':28 '-4.2':63,65 '/?':18 '/?ad=qwe&dw':7,10,14,24 '/?ad=qwe&dw=%20%32':27 '/awdf/dwqe/4325':51 '/usr/local/fff':50 '/wqe-324/ewr':54 '123-teodor@stack.net':38 '123_teodor@stack.net':37 '1aew.werc.ewr':9 '1aew.werc.ewr/?ad=qwe&dw':8 '234':66 '234.435':32 '2aew.werc.ewr':11 '345':1 '3aew.werc.ewr':13 '3aew.werc.ewr/?ad=qwe&dw':12 '4.2':59,60,61 '455':33 '4aew.werc.ewr':15 '5.005':34 '5aew.werc.ewr:8100':17 '5aew.werc.ewr:8100/?':16 '6aew.werc.ewr:8100':23 '6aew.werc.ewr:8100/?ad=qwe&dw':22 '7aew.werc.ewr:8100':26 '7aew.werc.ewr:8100/?ad=qwe&dw=%20%32':25 'ad':19 'aew.werc.ewr':6 'aew.werc.ewr/?ad=qwe&dw':5 'asdf':42 'dw':21 'efd.r':3 'ewr1':48 'ewri2':49 'gist.c':57 'gist.h':55 'gist.h.c':56 'hjwer':47 'jf':44 'jqw':69 'qwe':2,20,29,30,40 'qwe-wer':39 'qwer':43 'qwerti':70 'qwqwe':31 'readlin':58,62,64 'rewt/ewr':52 'sdjk':45 'teodor@123-stack.net':36 'teodor@stack.net':35 'wefjn':53 'wer':41 'wow':68 'www.com':4
(1 row)

SELECT length(to_tsvector('english', '345 qwe@efd.r '' http://www.com/ http://aew.werc.ewr/?ad=qwe&dw 1aew.werc.ewr/?ad=qwe&dw 2aew.werc.ewr http://3aew.werc.ewr/?ad=qwe&dw http://4aew.werc.ewr http://5aew.werc.ewr:8100/?  ad=qwe&dw 6aew.werc.ewr:8100/?ad=qwe&dw 7aew.werc.ewr:8100/?ad=qwe&dw=%20%32 +4.0e-10 qwe qwe qwqwe 234.435 455 5.005 teodor@stack.net teodor@123-stack.net 123_teodor@stack.net 123-teodor@stack.net qwe-wer asdf <fr>qwer jf sdjk<we hjwer <werrwe> ewr1> ewri2 <a href="qwe<qwe>">
/usr/local/fff /awdf/dwqe/4325 rewt/ewr wefjn /wqe-324/ewr gist.h gist.h.c gist.c. readline 4.2 4.2. 4.2, readline-4.2 readline-4.2. 234
<i <b> wow  < jqw <> qwerty'));
 length 
--------
     56
(1 row)

-- ts_debug
SELECT * from ts_debug('english', '<myns:foo-bar_baz.blurfl>abc&nm1;def&#xa9;ghi&#245;jkl</myns:foo-bar_baz.blurfl>');
   alias   |   description   |           token            |  dictionaries  |  dictionary  | lexemes 
-----------+-----------------+----------------------------+----------------+--------------+---------
 tag       | XML tag         | <myns:foo-bar_baz.blurfl>  | {}             |              | 
 asciiword | Word, all ASCII | abc                        | {english_stem} | english_stem | {abc}
 entity    | XML entity      | &nm1;                      | {}             |              | 
 asciiword | Word, all ASCII | def                        | {english_stem} | english_stem | {def}
 entity    | XML entity      | &#xa9;                     | {}             |              | 
 asciiword | Word, all ASCII | ghi                        | {english_stem} | english_stem | {ghi}
 entity    | XML entity      | &#245;                     | {}             |              | 
 asciiword | Word, all ASCII | jkl                        | {english_stem} | english_stem | {jkl}
 tag       | XML tag         | </myns:foo-bar_baz.blurfl> | {}             |              | 
(9 rows)

-- check parsing of URLs
SELECT * from ts_debug('english', 'http://www.harewoodsolutions.co.uk/press.aspx</span>');
  alias   |  description  |                 token                  | dictionaries | dictionary |                 lexemes                  
----------+---------------+----------------------------------------+--------------+------------+------------------------------------------
 protocol | Protocol head | http://                                | {}           |            | 
 url      | URL           | www.harewoodsolutions.co.uk/press.aspx | {simple}     | simple     | {www.harewoodsolutions.co.uk/press.aspx}
 host     | Host          | www.harewoodsolutions.co.uk            | {simple}     | simple     | {www.harewoodsolutions.co.uk}
 url_path | URL path      | /press.aspx                            | {simple}     | simple     | {/press.aspx}
 tag      | XML tag       | </span>                                | {}           |            | 
(5 rows)

SELECT * from ts_debug('english', 'http://aew.wer0c.ewr/id?ad=qwe&dw<span>');
  alias   |  description  |           token            | dictionaries | dictionary |           lexemes            
----------+---------------+----------------------------+--------------+------------+------------------------------
 protocol | Protocol head | http://                    | {}           |            | 
 url      | URL           | aew.wer0c.ewr/id?ad=qwe&dw | {simple}     | simple     | {aew.wer0c.ewr/id?ad=qwe&dw}
 host     | Host          | aew.wer0c.ewr              | {simple}     | simple     | {aew.wer0c.ewr}
 url_path | URL path      | /id?ad=qwe&dw              | {simple}     | simple     | {/id?ad=qwe&dw}
 tag      | XML tag       | <span>                     | {}           |            | 
(5 rows)

SELECT * from ts_debug('english', 'http://5aew.werc.ewr:8100/?');
  alias   |  description  |        token         | dictionaries | dictionary |        lexemes         
----------+---------------+----------------------+--------------+------------+------------------------
 protocol | Protocol head | http://              | {}           |            | 
 url      | URL           | 5aew.werc.ewr:8100/? | {simple}     | simple     | {5aew.werc.ewr:8100/?}
 host     | Host          | 5aew.werc.ewr:8100   | {simple}     | simple     | {5aew.werc.ewr:8100}
 url_path | URL path      | /?                   | {simple}     | simple     | {/?}
(4 rows)

SELECT * from ts_debug('english', '5aew.werc.ewr:8100/?xx');
  alias   | description |         token          | dictionaries | dictionary |         lexemes          
----------+-------------+------------------------+--------------+------------+--------------------------
 url      | URL         | 5aew.werc.ewr:8100/?xx | {simple}     | simple     | {5aew.werc.ewr:8100/?xx}
 host     | Host        | 5aew.werc.ewr:8100     | {simple}     | simple     | {5aew.werc.ewr:8100}
 url_path | URL path    | /?xx                   | {simple}     | simple     | {/?xx}
(3 rows)

SELECT token, alias,
  dictionaries, dictionaries is null as dnull, array_dims(dictionaries) as ddims,
  lexemes, lexemes is null as lnull, array_dims(lexemes) as ldims
from ts_debug('english', 'a title');
 token |   alias   |  dictionaries  | dnull | ddims | lexemes | lnull | ldims 
-------+-----------+----------------+-------+-------+---------+-------+-------
 a     | asciiword | {english_stem} | f     | [1:1] | {}      | f     | 
       | blank     | {}             | f     |       |         | t     | 
 title | asciiword | {english_stem} | f     | [1:1] | {titl}  | f     | [1:1]
(3 rows)

-- to_tsquery
SELECT to_tsquery('english', 'qwe & sKies ');
  to_tsquery   
---------------
 'qwe' & 'sky'
(1 row)

SELECT to_tsquery('simple', 'qwe & sKies ');
   to_tsquery    
-----------------
 'qwe' & 'skies'
(1 row)

SELECT to_tsquery('english', '''the wether'':dc & ''           sKies '':BC ');
       to_tsquery       
------------------------
 'wether':CD & 'sky':BC
(1 row)

SELECT to_tsquery('english', 'asd&(and|fghj)');
   to_tsquery   
----------------
 'asd' & 'fghj'
(1 row)

SELECT to_tsquery('english', '(asd&and)|fghj');
   to_tsquery   
----------------
 'asd' | 'fghj'
(1 row)

SELECT to_tsquery('english', '(asd&!and)|fghj');
   to_tsquery   
----------------
 'asd' | 'fghj'
(1 row)

SELECT to_tsquery('english', '(the|and&(i&1))&fghj');
  to_tsquery  
--------------
 '1' & 'fghj'
(1 row)

SELECT plainto_tsquery('english', 'the and z 1))& fghj');
  plainto_tsquery   
--------------------
 'z' & '1' & 'fghj'
(1 row)

SELECT plainto_tsquery('english', 'foo bar') && plainto_tsquery('english', 'asd');
       ?column?        
-----------------------
 'foo' & 'bar' & 'asd'
(1 row)

SELECT plainto_tsquery('english', 'foo bar') || plainto_tsquery('english', 'asd fg');
           ?column?           
------------------------------
 'foo' & 'bar' | 'asd' & 'fg'
(1 row)

SELECT plainto_tsquery('english', 'foo bar') || !!plainto_tsquery('english', 'asd fg');
             ?column?              
-----------------------------------
 'foo' & 'bar' | !( 'asd' & 'fg' )
(1 row)

SELECT plainto_tsquery('english', 'foo bar') && 'asd | fg';
             ?column?             
----------------------------------
 'foo' & 'bar' & ( 'asd' | 'fg' )
(1 row)

-- Check stop word deletion, a and s are stop-words
SELECT to_tsquery('english', '!(a & !b) & c');
 to_tsquery  
-------------
 !!'b' & 'c'
(1 row)

SELECT to_tsquery('english', '!(a & !b)');
 to_tsquery 
------------
 !!'b'
(1 row)

SELECT to_tsquery('english', '(1 <-> 2) <-> a');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', '(1 <-> a) <-> 2');
 to_tsquery  
-------------
 '1' <2> '2'
(1 row)

SELECT to_tsquery('english', '(a <-> 1) <-> 2');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', 'a <-> (1 <-> 2)');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', '1 <-> (a <-> 2)');
 to_tsquery  
-------------
 '1' <2> '2'
(1 row)

SELECT to_tsquery('english', '1 <-> (2 <-> a)');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', '(1 <-> 2) <3> a');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', '(1 <-> a) <3> 2');
 to_tsquery  
-------------
 '1' <4> '2'
(1 row)

SELECT to_tsquery('english', '(a <-> 1) <3> 2');
 to_tsquery  
-------------
 '1' <3> '2'
(1 row)

SELECT to_tsquery('english', 'a <3> (1 <-> 2)');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', '1 <3> (a <-> 2)');
 to_tsquery  
-------------
 '1' <4> '2'
(1 row)

SELECT to_tsquery('english', '1 <3> (2 <-> a)');
 to_tsquery  
-------------
 '1' <3> '2'
(1 row)

SELECT to_tsquery('english', '(1 <3> 2) <-> a');
 to_tsquery  
-------------
 '1' <3> '2'
(1 row)

SELECT to_tsquery('english', '(1 <3> a) <-> 2');
 to_tsquery  
-------------
 '1' <4> '2'
(1 row)

SELECT to_tsquery('english', '(a <3> 1) <-> 2');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', 'a <-> (1 <3> 2)');
 to_tsquery  
-------------
 '1' <3> '2'
(1 row)

SELECT to_tsquery('english', '1 <-> (a <3> 2)');
 to_tsquery  
-------------
 '1' <4> '2'
(1 row)

SELECT to_tsquery('english', '1 <-> (2 <3> a)');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', '((a <-> 1) <-> 2) <-> s');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', '(2 <-> (a <-> 1)) <-> s');
 to_tsquery  
-------------
 '2' <2> '1'
(1 row)

SELECT to_tsquery('english', '((1 <-> a) <-> 2) <-> s');
 to_tsquery  
-------------
 '1' <2> '2'
(1 row)

SELECT to_tsquery('english', '(2 <-> (1 <-> a)) <-> s');
 to_tsquery  
-------------
 '2' <-> '1'
(1 row)

SELECT to_tsquery('english', 's <-> ((a <-> 1) <-> 2)');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', 's <-> (2 <-> (a <-> 1))');
 to_tsquery  
-------------
 '2' <2> '1'
(1 row)

SELECT to_tsquery('english', 's <-> ((1 <-> a) <-> 2)');
 to_tsquery  
-------------
 '1' <2> '2'
(1 row)

SELECT to_tsquery('english', 's <-> (2 <-> (1 <-> a))');
 to_tsquery  
-------------
 '2' <-> '1'
(1 row)

SELECT to_tsquery('english', '((a <-> 1) <-> s) <-> 2');
 to_tsquery  
-------------
 '1' <2> '2'
(1 row)

SELECT to_tsquery('english', '(s <-> (a <-> 1)) <-> 2');
 to_tsquery  
-------------
 '1' <-> '2'
(1 row)

SELECT to_tsquery('english', '((1 <-> a) <-> s) <-> 2');
 to_tsquery  
-------------
 '1' <3> '2'
(1 row)

SELECT to_tsquery('english', '(s <-> (1 <-> a)) <-> 2');
 to_tsquery  
-------------
 '1' <2> '2'
(1 row)

SELECT to_tsquery('english', '2 <-> ((a <-> 1) <-> s)');
 to_tsquery  
-------------
 '2' <2> '1'
(1 row)

SELECT to_tsquery('english', '2 <-> (s <-> (a <-> 1))');
 to_tsquery  
-------------
 '2' <3> '1'
(1 row)

SELECT to_tsquery('english', '2 <-> ((1 <-> a) <-> s)');
 to_tsquery  
-------------
 '2' <-> '1'
(1 row)

SELECT to_tsquery('english', '2 <-> (s <-> (1 <-> a))');
 to_tsquery  
-------------
 '2' <2> '1'
(1 row)

SELECT to_tsquery('english', 'foo <-> (a <-> (the <-> bar))');
   to_tsquery    
-----------------
 'foo' <3> 'bar'
(1 row)

SELECT to_tsquery('english', '((foo <-> a) <-> the) <-> bar');
   to_tsquery    
-----------------
 'foo' <3> 'bar'
(1 row)

SELECT to_tsquery('english', 'foo <-> a <-> the <-> bar');
   to_tsquery    
-----------------
 'foo' <3> 'bar'
(1 row)

SELECT phraseto_tsquery('english', 'PostgreSQL can be extended by the user in many ways');
                     phraseto_tsquery                      
-----------------------------------------------------------
 'postgresql' <3> 'extend' <3> 'user' <2> 'mani' <-> 'way'
(1 row)

SELECT ts_rank_cd(to_tsvector('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
'), to_tsquery('english', 'paint&water'));
 ts_rank_cd 
------------
       0.05
(1 row)

SELECT ts_rank_cd(to_tsvector('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
'), to_tsquery('english', 'breath&motion&water'));
 ts_rank_cd 
------------
 0.00833333
(1 row)

SELECT ts_rank_cd(to_tsvector('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
'), to_tsquery('english', 'ocean'));
 ts_rank_cd 
------------
        0.1
(1 row)

SELECT ts_rank_cd(to_tsvector('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
'), to_tsquery('english', 'painted <-> Ship'));
 ts_rank_cd 
------------
        0.1
(1 row)

SELECT ts_rank_cd(strip(to_tsvector('both stripped')),
                  to_tsquery('both & stripped'));
 ts_rank_cd 
------------
          0
(1 row)

SELECT ts_rank_cd(to_tsvector('unstripped') || strip(to_tsvector('stripped')),
                  to_tsquery('unstripped & stripped'));
 ts_rank_cd 
------------
          0
(1 row)

--headline tests
SELECT ts_headline('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
', to_tsquery('english', 'paint&water'));
               ts_headline               
-----------------------------------------
 <b>painted</b> Ocean.                  +
 <b>Water</b>, <b>water</b>, every where+
   And all the boards did shrink;       +
 <b>Water</b>, <b>water</b>, every
(1 row)

SELECT ts_headline('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
', to_tsquery('english', 'breath&motion&water'));
           ts_headline            
----------------------------------
 <b>breath</b> nor <b>motion</b>,+
 As idle as a painted Ship       +
   Upon a painted Ocean.         +
 <b>Water</b>, <b>water</b>
(1 row)

SELECT ts_headline('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
', to_tsquery('english', 'ocean'));
           ts_headline            
----------------------------------
 <b>Ocean</b>.                   +
 Water, water, every where       +
   And all the boards did shrink;+
 Water, water, every where
(1 row)

SELECT ts_headline('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
', phraseto_tsquery('english', 'painted Ocean'));
           ts_headline            
----------------------------------
 <b>painted</b> <b>Ocean</b>.    +
 Water, water, every where       +
   And all the boards did shrink;+
 Water, water, every
(1 row)

SELECT ts_headline('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
', phraseto_tsquery('english', 'idle as a painted Ship'));
                 ts_headline                 
---------------------------------------------
 <b>idle</b> as a <b>painted</b> <b>Ship</b>+
   Upon a <b>painted</b> Ocean.             +
 Water, water, every where                  +
   And all the boards
(1 row)

SELECT ts_headline('english', '
<html>
<!-- some comment -->
<body>
Sea view wow <u>foo bar</u> <i>qq</i>
<a href="http://www.google.com/foo.bar.html" target="_blank">YES &nbsp;</a>
ff-bg
<script>
       document.write(15);
</script>
</body>
</html>',
to_tsquery('english', 'sea&foo'), 'HighlightAll=true');
                                 ts_headline                                 
-----------------------------------------------------------------------------
                                                                            +
 <html>                                                                     +
 <!-- some comment -->                                                      +
 <body>                                                                     +
 <b>Sea</b> view wow <u><b>foo</b> bar</u> <i>qq</i>                        +
 <a href="http://www.google.com/foo.bar.html" target="_blank">YES &nbsp;</a>+
 ff-bg                                                                      +
 <script>                                                                   +
        document.write(15);                                                 +
 </script>                                                                  +
 </body>                                                                    +
 </html>
(1 row)

SELECT ts_headline('simple', '1 2 3 1 3'::text, '1 <-> 3', 'MaxWords=2, MinWords=1');
    ts_headline    
-------------------
 <b>1</b> <b>3</b>
(1 row)

SELECT ts_headline('simple', '1 2 3 1 3'::text, '1 & 3', 'MaxWords=4, MinWords=1');
         ts_headline          
------------------------------
 <b>1</b> 2 <b>3</b> <b>1</b>
(1 row)

SELECT ts_headline('simple', '1 2 3 1 3'::text, '1 <-> 3', 'MaxWords=4, MinWords=1');
    ts_headline    
-------------------
 <b>1</b> <b>3</b>
(1 row)

--Check if headline fragments work
SELECT ts_headline('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
', to_tsquery('english', 'ocean'), 'MaxFragments=1');
            ts_headline             
------------------------------------
 after day,                        +
   We stuck, nor breath nor motion,+
 As idle as a painted Ship         +
   Upon a painted <b>Ocean</b>.    +
 Water, water, every where         +
   And all the boards did shrink;  +
 Water, water, every where,        +
   Nor any drop
(1 row)

--Check if more than one fragments are displayed
SELECT ts_headline('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
', to_tsquery('english', 'Coleridge & stuck'), 'MaxFragments=2');
                 ts_headline                  
----------------------------------------------
 after day, day after day,                   +
   We <b>stuck</b>, nor breath nor motion,   +
 As idle as a painted Ship                   +
   Upon a painted Ocean.                     +
 Water, water, every where                   +
   And all the boards did shrink;            +
 Water, water, every where ... drop to drink.+
 S. T. <b>Coleridge</b>
(1 row)

--Fragments when there all query words are not in the document
SELECT ts_headline('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
', to_tsquery('english', 'ocean & seahorse'), 'MaxFragments=1');
            ts_headline             
------------------------------------
                                   +
 Day after day, day after day,     +
   We stuck, nor breath nor motion,+
 As idle as
(1 row)

--FragmentDelimiter option
SELECT ts_headline('english', '
Day after day, day after day,
  We stuck, nor breath nor motion,
As idle as a painted Ship
  Upon a painted Ocean.
Water, water, every where
  And all the boards did shrink;
Water, water, every where,
  Nor any drop to drink.
S. T. Coleridge (1772-1834)
', to_tsquery('english', 'Coleridge & stuck'), 'MaxFragments=2,FragmentDelimiter=***');
                ts_headline                 
--------------------------------------------
 after day, day after day,                 +
   We <b>stuck</b>, nor breath nor motion, +
 As idle as a painted Ship                 +
   Upon a painted Ocean.                   +
 Water, water, every where                 +
   And all the boards did shrink;          +
 Water, water, every where***drop to drink.+
 S. T. <b>Coleridge</b>
(1 row)

--Rewrite sub system
CREATE TABLE test_tsquery (txtkeyword TEXT, txtsample TEXT);
\set ECHO none
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';
 count 
-------
     2
(1 row)

SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new & york';
 count 
-------
     3
(1 row)

SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new & york';
 count 
-------
     1
(1 row)

SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new & york';
 count 
-------
     4
(1 row)

SELECT COUNT(*) FROM test_tsquery WHERE keyword >  'new & york';
 count 
-------
     3
(1 row)

CREATE UNIQUE INDEX bt_tsq ON test_tsquery (keyword);
SET enable_seqscan=OFF;
SELECT COUNT(*) FROM test_tsquery WHERE keyword <  'new & york';
 count 
-------
     2
(1 row)

SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new & york';
 count 
-------
     3
(1 row)

SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new & york';
 count 
-------
     1
(1 row)

SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new & york';
 count 
-------
     4
(1 row)

SELECT COUNT(*) FROM test_tsquery WHERE keyword >  'new & york';
 count 
-------
     3
(1 row)

RESET enable_seqscan;
SELECT ts_rewrite('foo & bar & qq & new & york',  'new & york'::tsquery, 'big & apple | nyc | new & york & city');
                                  ts_rewrite                                  
------------------------------------------------------------------------------
 'foo' & 'bar' & 'qq' & ( 'city' & 'new' & 'york' | 'nyc' | 'big' & 'apple' )
(1 row)

SELECT ts_rewrite(ts_rewrite('new & !york ', 'york', '!jersey'),
                  'jersey', 'mexico');
     ts_rewrite     
--------------------
 'new' & !!'mexico'
(1 row)

SELECT ts_rewrite('moscow', 'SELECT keyword, sample FROM test_tsquery'::text );
     ts_rewrite      
---------------------
 'moskva' | 'moscow'
(1 row)

SELECT ts_rewrite('moscow & hotel', 'SELECT keyword, sample FROM test_tsquery'::text );
            ts_rewrite             
-----------------------------------
 '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' )
(1 row)

SELECT ts_rewrite( 'moscow', 'SELECT keyword, sample FROM test_tsquery');
     ts_rewrite      
---------------------
 'moskva' | 'moscow'
(1 row)

SELECT ts_rewrite( 'moscow & hotel', 'SELECT keyword, sample FROM test_tsquery');
            ts_rewrite             
-----------------------------------
 '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' )
(1 row)

SELECT ts_rewrite('1 & (2 <-> 3)', 'SELECT keyword, sample FROM test_tsquery'::text );
 ts_rewrite  
-------------
 '2' <-> '4'
(1 row)

SELECT ts_rewrite('1 & (2 <2> 3)', 'SELECT keyword, sample FROM test_tsquery'::text );
    ts_rewrite     
-------------------
 '1' & '2' <2> '3'
(1 row)

SELECT ts_rewrite('5 <-> (1 & (2 <-> 3))', 'SELECT keyword, sample FROM test_tsquery'::text );
       ts_rewrite        
-------------------------
 '5' <-> ( '2' <-> '4' )
(1 row)

SELECT ts_rewrite('5 <-> (6 | 8)', 'SELECT keyword, sample FROM test_tsquery'::text );
      ts_rewrite       
-----------------------
 '5' <-> ( '6' | '8' )
(1 row)

-- Check empty substitution
SELECT ts_rewrite(to_tsquery('5 & (6 | 5)'), to_tsquery('5'), to_tsquery(''));
NOTICE:  text-search query doesn't contain lexemes: ""
 ts_rewrite 
------------
 '6'
(1 row)

SELECT ts_rewrite(to_tsquery('!5'), to_tsquery('5'), to_tsquery(''));
NOTICE:  text-search query doesn't contain lexemes: ""
 ts_rewrite 
------------
 
(1 row)

SELECT keyword FROM test_tsquery WHERE keyword @> 'new';
    keyword     
----------------
 'new' & 'york'
(1 row)

SELECT keyword FROM test_tsquery WHERE keyword @> 'moscow';
 keyword  
----------
 'moscow'
(1 row)

SELECT keyword FROM test_tsquery WHERE keyword <@ 'new';
 keyword 
---------
(0 rows)

SELECT keyword FROM test_tsquery WHERE keyword <@ 'moscow';
 keyword  
----------
 'moscow'
(1 row)

SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
     ts_rewrite      
---------------------
 'moskva' | 'moscow'
(1 row)

SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
            ts_rewrite             
-----------------------------------
 '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' )
(1 row)

SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
     ts_rewrite      
---------------------
 'moskva' | 'moscow'
(1 row)

SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
            ts_rewrite             
-----------------------------------
 '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' )
(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'
(1 row)

SELECT keyword FROM test_tsquery WHERE keyword @> 'moscow';
 keyword  
----------
 'moscow'
(1 row)

SELECT keyword FROM test_tsquery WHERE keyword <@ 'new';
 keyword 
---------
(0 rows)

SELECT keyword FROM test_tsquery WHERE keyword <@ 'moscow';
 keyword  
----------
 'moscow'
(1 row)

SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
     ts_rewrite      
---------------------
 'moskva' | 'moscow'
(1 row)

SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
            ts_rewrite             
-----------------------------------
 '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' )
(1 row)

SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
     ts_rewrite      
---------------------
 'moskva' | 'moscow'
(1 row)

SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
            ts_rewrite             
-----------------------------------
 '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' )
(1 row)

SELECT ts_rewrite(tsquery_phrase('foo', 'foo'), 'foo', 'bar | baz');
               ts_rewrite                
-----------------------------------------
 ( 'bar' | 'baz' ) <-> ( 'bar' | 'baz' )
(1 row)

SELECT to_tsvector('foo bar') @@
  ts_rewrite(tsquery_phrase('foo', 'foo'), 'foo', 'bar | baz');
 ?column? 
----------
 f
(1 row)

SELECT to_tsvector('bar baz') @@
  ts_rewrite(tsquery_phrase('foo', 'foo'), 'foo', 'bar | baz');
 ?column? 
----------
 t
(1 row)

RESET enable_seqscan;
--test GUC
SET default_text_search_config=simple;
SELECT to_tsvector('SKIES My booKs');
        to_tsvector         
----------------------------
 'books':3 'my':2 'skies':1
(1 row)

SELECT plainto_tsquery('SKIES My booKs');
     plainto_tsquery      
--------------------------
 'skies' & 'my' & 'books'
(1 row)

SELECT to_tsquery('SKIES & My | booKs');
        to_tsquery        
--------------------------
 'skies' & 'my' | 'books'
(1 row)

SET default_text_search_config=english;
SELECT to_tsvector('SKIES My booKs');
   to_tsvector    
------------------
 'book':3 'sky':1
(1 row)

SELECT plainto_tsquery('SKIES My booKs');
 plainto_tsquery 
-----------------
 'sky' & 'book'
(1 row)

SELECT to_tsquery('SKIES & My | booKs');
   to_tsquery   
----------------
 'sky' | 'book'
(1 row)

--trigger
CREATE TRIGGER tsvectorupdate
BEFORE UPDATE OR INSERT ON test_tsvector
FOR EACH ROW EXECUTE PROCEDURE tsvector_update_trigger(a, 'pg_catalog.english', t);
SELECT count(*) FROM test_tsvector WHERE a @@ to_tsquery('345&qwerty');
 count 
-------
     0
(1 row)

INSERT INTO test_tsvector (t) VALUES ('345 qwerty');
SELECT count(*) FROM test_tsvector WHERE a @@ to_tsquery('345&qwerty');
 count 
-------
     1
(1 row)

UPDATE test_tsvector SET t = null WHERE t = '345 qwerty';
SELECT count(*) FROM test_tsvector WHERE a @@ to_tsquery('345&qwerty');
 count 
-------
     0
(1 row)

INSERT INTO test_tsvector (t) VALUES ('345 qwerty');
SELECT count(*) FROM test_tsvector WHERE a @@ to_tsquery('345&qwerty');
 count 
-------
     1
(1 row)

-- test finding items in GIN's pending list
create temp table pendtest (ts tsvector);
create index pendtest_idx on pendtest using gin(ts);
insert into pendtest values (to_tsvector('Lore ipsam'));
insert into pendtest values (to_tsvector('Lore ipsum'));
select * from pendtest where 'ipsu:*'::tsquery @@ ts;
         ts         
--------------------
 'ipsum':2 'lore':1
(1 row)

select * from pendtest where 'ipsa:*'::tsquery @@ ts;
         ts         
--------------------
 'ipsam':2 'lore':1
(1 row)

select * from pendtest where 'ips:*'::tsquery @@ ts;
         ts         
--------------------
 'ipsam':2 'lore':1
 'ipsum':2 'lore':1
(2 rows)

select * from pendtest where 'ipt:*'::tsquery @@ ts;
 ts 
----
(0 rows)

select * from pendtest where 'ipi:*'::tsquery @@ ts;
 ts 
----
(0 rows)

--check OP_PHRASE on index
create temp table phrase_index_test(fts tsvector);
insert into phrase_index_test values ('A fat cat has just eaten a rat.');
insert into phrase_index_test values (to_tsvector('english', 'A fat cat has just eaten a rat.'));
create index phrase_index_test_idx on phrase_index_test using gin(fts);
set enable_seqscan = off;
select * from phrase_index_test where fts @@ phraseto_tsquery('english', 'fat cat');
                fts                
-----------------------------------
 'cat':3 'eaten':6 'fat':2 'rat':8
(1 row)

set enable_seqscan = on;