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1db5af2794
The original coding of this function overlooked the possibility that it could be passed anything except simple OpExpr indexquals. But ScalarArrayOpExpr is possible too, and the code would probably crash (and surely give ridiculous answers) in such a case. Add logic to try to estimate sanely for such cases. In passing, fix the treatment of inner-indexscan cost estimation: it was failing to scale up properly for multiple iterations of a nestloop. (I think somebody might've thought that index_pages_fetched() is linear, but of course it's not.) Report, diagnosis, and preliminary patch by Marti Raudsepp; I refactored it a bit and fixed the cost estimation. Back-patch into 9.1 where the bogus code was introduced.
383 lines
15 KiB
SQL
383 lines
15 KiB
SQL
--
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-- Sanity checks for text search catalogs
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--
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-- NB: we assume the oidjoins test will have caught any dangling links,
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-- that is OID or REGPROC fields that are not zero and do not match some
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-- row in the linked-to table. However, if we want to enforce that a link
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-- field can't be 0, we have to check it here.
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-- Find unexpected zero link entries
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SELECT oid, prsname
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FROM pg_ts_parser
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WHERE prsnamespace = 0 OR prsstart = 0 OR prstoken = 0 OR prsend = 0 OR
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-- prsheadline is optional
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prslextype = 0;
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SELECT oid, dictname
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FROM pg_ts_dict
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WHERE dictnamespace = 0 OR dictowner = 0 OR dicttemplate = 0;
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SELECT oid, tmplname
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FROM pg_ts_template
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WHERE tmplnamespace = 0 OR tmpllexize = 0; -- tmplinit is optional
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SELECT oid, cfgname
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FROM pg_ts_config
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WHERE cfgnamespace = 0 OR cfgowner = 0 OR cfgparser = 0;
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SELECT mapcfg, maptokentype, mapseqno
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FROM pg_ts_config_map
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WHERE mapcfg = 0 OR mapdict = 0;
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-- Look for pg_ts_config_map entries that aren't one of parser's token types
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SELECT * FROM
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( SELECT oid AS cfgid, (ts_token_type(cfgparser)).tokid AS tokid
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FROM pg_ts_config ) AS tt
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RIGHT JOIN pg_ts_config_map AS m
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ON (tt.cfgid=m.mapcfg AND tt.tokid=m.maptokentype)
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WHERE
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tt.cfgid IS NULL OR tt.tokid IS NULL;
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-- test basic text search behavior without indexes, then with
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SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'wr&qh';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'eq&yt';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'eq|yt';
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SELECT count(*) FROM test_tsvector WHERE a @@ '(eq&yt)|(wr&qh)';
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SELECT count(*) FROM test_tsvector WHERE a @@ '(eq|yt)&(wr|qh)';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'w:*|q:*';
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create index wowidx on test_tsvector using gist (a);
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SET enable_seqscan=OFF;
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SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'wr&qh';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'eq&yt';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'eq|yt';
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SELECT count(*) FROM test_tsvector WHERE a @@ '(eq&yt)|(wr&qh)';
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SELECT count(*) FROM test_tsvector WHERE a @@ '(eq|yt)&(wr|qh)';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'w:*|q:*';
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SELECT count(*) FROM test_tsvector WHERE a @@ any ('{wr,qh}');
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RESET enable_seqscan;
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DROP INDEX wowidx;
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CREATE INDEX wowidx ON test_tsvector USING gin (a);
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SET enable_seqscan=OFF;
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SELECT count(*) FROM test_tsvector WHERE a @@ 'wr|qh';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'wr&qh';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'eq&yt';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'eq|yt';
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SELECT count(*) FROM test_tsvector WHERE a @@ '(eq&yt)|(wr&qh)';
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SELECT count(*) FROM test_tsvector WHERE a @@ '(eq|yt)&(wr|qh)';
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SELECT count(*) FROM test_tsvector WHERE a @@ 'w:*|q:*';
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SELECT count(*) FROM test_tsvector WHERE a @@ any ('{wr,qh}');
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RESET enable_seqscan;
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INSERT INTO test_tsvector VALUES ('???', 'DFG:1A,2B,6C,10 FGH');
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SELECT * FROM ts_stat('SELECT a FROM test_tsvector') ORDER BY ndoc DESC, nentry DESC, word LIMIT 10;
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SELECT * FROM ts_stat('SELECT a FROM test_tsvector', 'AB') ORDER BY ndoc DESC, nentry DESC, word;
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--dictionaries and to_tsvector
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SELECT ts_lexize('english_stem', 'skies');
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SELECT ts_lexize('english_stem', 'identity');
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SELECT * FROM ts_token_type('default');
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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 qwe-wer asdf <fr>qwer jf sdjk<we hjwer <werrwe> ewr1> ewri2 <a href="qwe<qwe>">
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/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
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<i <b> wow < jqw <> qwerty');
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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 qwe-wer asdf <fr>qwer jf sdjk<we hjwer <werrwe> ewr1> ewri2 <a href="qwe<qwe>">
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/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
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<i <b> wow < jqw <> qwerty');
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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 qwe-wer asdf <fr>qwer jf sdjk<we hjwer <werrwe> ewr1> ewri2 <a href="qwe<qwe>">
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/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
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<i <b> wow < jqw <> qwerty'));
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-- ts_debug
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SELECT * from ts_debug('english', '<myns:foo-bar_baz.blurfl>abc&nm1;def©ghiõjkl</myns:foo-bar_baz.blurfl>');
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-- check parsing of URLs
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SELECT * from ts_debug('english', 'http://www.harewoodsolutions.co.uk/press.aspx</span>');
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SELECT * from ts_debug('english', 'http://aew.wer0c.ewr/id?ad=qwe&dw<span>');
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SELECT * from ts_debug('english', 'http://5aew.werc.ewr:8100/?');
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SELECT * from ts_debug('english', '5aew.werc.ewr:8100/?xx');
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-- to_tsquery
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SELECT to_tsquery('english', 'qwe & sKies ');
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SELECT to_tsquery('simple', 'qwe & sKies ');
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SELECT to_tsquery('english', '''the wether'':dc & '' sKies '':BC ');
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SELECT to_tsquery('english', 'asd&(and|fghj)');
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SELECT to_tsquery('english', '(asd&and)|fghj');
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SELECT to_tsquery('english', '(asd&!and)|fghj');
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SELECT to_tsquery('english', '(the|and&(i&1))&fghj');
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SELECT plainto_tsquery('english', 'the and z 1))& fghj');
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SELECT plainto_tsquery('english', 'foo bar') && plainto_tsquery('english', 'asd');
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SELECT plainto_tsquery('english', 'foo bar') || plainto_tsquery('english', 'asd fg');
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SELECT plainto_tsquery('english', 'foo bar') || !!plainto_tsquery('english', 'asd fg');
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SELECT plainto_tsquery('english', 'foo bar') && 'asd | fg';
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SELECT ts_rank_cd(to_tsvector('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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'), to_tsquery('english', 'paint&water'));
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SELECT ts_rank_cd(to_tsvector('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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'), to_tsquery('english', 'breath&motion&water'));
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SELECT ts_rank_cd(to_tsvector('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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'), to_tsquery('english', 'ocean'));
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--headline tests
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SELECT ts_headline('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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', to_tsquery('english', 'paint&water'));
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SELECT ts_headline('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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', to_tsquery('english', 'breath&motion&water'));
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SELECT ts_headline('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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', to_tsquery('english', 'ocean'));
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SELECT ts_headline('english', '
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<html>
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<!-- some comment -->
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<body>
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Sea view wow <u>foo bar</u> <i>qq</i>
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<a href="http://www.google.com/foo.bar.html" target="_blank">YES </a>
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ff-bg
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<script>
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document.write(15);
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</script>
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</body>
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</html>',
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to_tsquery('english', 'sea&foo'), 'HighlightAll=true');
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--Check if headline fragments work
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SELECT ts_headline('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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', to_tsquery('english', 'ocean'), 'MaxFragments=1');
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--Check if more than one fragments are displayed
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SELECT ts_headline('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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', to_tsquery('english', 'Coleridge & stuck'), 'MaxFragments=2');
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--Fragments when there all query words are not in the document
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SELECT ts_headline('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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', to_tsquery('english', 'ocean & seahorse'), 'MaxFragments=1');
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--FragmentDelimiter option
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SELECT ts_headline('english', '
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Day after day, day after day,
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We stuck, nor breath nor motion,
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As idle as a painted Ship
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Upon a painted Ocean.
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Water, water, every where
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And all the boards did shrink;
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Water, water, every where,
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Nor any drop to drink.
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S. T. Coleridge (1772-1834)
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', to_tsquery('english', 'Coleridge & stuck'), 'MaxFragments=2,FragmentDelimiter=***');
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--Rewrite sub system
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CREATE TABLE test_tsquery (txtkeyword TEXT, txtsample TEXT);
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\set ECHO none
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\copy test_tsquery from stdin
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'New York' new & york | big & apple | nyc
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Moscow moskva | moscow
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'Sanct Peter' Peterburg | peter | 'Sanct Peterburg'
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'foo bar qq' foo & (bar | qq) & city
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\.
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\set ECHO all
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ALTER TABLE test_tsquery ADD COLUMN keyword tsquery;
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UPDATE test_tsquery SET keyword = to_tsquery('english', txtkeyword);
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ALTER TABLE test_tsquery ADD COLUMN sample tsquery;
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UPDATE test_tsquery SET sample = to_tsquery('english', txtsample::text);
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SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new & york';
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SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new & york';
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SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new & york';
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SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new & york';
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SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new & york';
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CREATE UNIQUE INDEX bt_tsq ON test_tsquery (keyword);
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SET enable_seqscan=OFF;
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SELECT COUNT(*) FROM test_tsquery WHERE keyword < 'new & york';
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SELECT COUNT(*) FROM test_tsquery WHERE keyword <= 'new & york';
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SELECT COUNT(*) FROM test_tsquery WHERE keyword = 'new & york';
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SELECT COUNT(*) FROM test_tsquery WHERE keyword >= 'new & york';
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SELECT COUNT(*) FROM test_tsquery WHERE keyword > 'new & york';
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RESET enable_seqscan;
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SELECT ts_rewrite('foo & bar & qq & new & york', 'new & york'::tsquery, 'big & apple | nyc | new & york & city');
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SELECT ts_rewrite('moscow', 'SELECT keyword, sample FROM test_tsquery'::text );
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SELECT ts_rewrite('moscow & hotel', 'SELECT keyword, sample FROM test_tsquery'::text );
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SELECT ts_rewrite('bar & new & qq & foo & york', 'SELECT keyword, sample FROM test_tsquery'::text );
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SELECT ts_rewrite( 'moscow', 'SELECT keyword, sample FROM test_tsquery');
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SELECT ts_rewrite( 'moscow & hotel', 'SELECT keyword, sample FROM test_tsquery');
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SELECT ts_rewrite( 'bar & new & qq & foo & york', 'SELECT keyword, sample FROM test_tsquery');
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SELECT keyword FROM test_tsquery WHERE keyword @> 'new';
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SELECT keyword FROM test_tsquery WHERE keyword @> 'moscow';
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SELECT keyword FROM test_tsquery WHERE keyword <@ 'new';
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SELECT keyword FROM test_tsquery WHERE keyword <@ 'moscow';
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
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CREATE INDEX qq ON test_tsquery USING gist (keyword tsquery_ops);
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SET enable_seqscan=OFF;
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SELECT keyword FROM test_tsquery WHERE keyword @> 'new';
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SELECT keyword FROM test_tsquery WHERE keyword @> 'moscow';
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SELECT keyword FROM test_tsquery WHERE keyword <@ 'new';
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SELECT keyword FROM test_tsquery WHERE keyword <@ 'moscow';
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'moscow & hotel') AS query;
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SELECT ts_rewrite( query, 'SELECT keyword, sample FROM test_tsquery' ) FROM to_tsquery('english', 'bar & new & qq & foo & york') AS query;
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RESET enable_seqscan;
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--test GUC
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SET default_text_search_config=simple;
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SELECT to_tsvector('SKIES My booKs');
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SELECT plainto_tsquery('SKIES My booKs');
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SELECT to_tsquery('SKIES & My | booKs');
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SET default_text_search_config=english;
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SELECT to_tsvector('SKIES My booKs');
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SELECT plainto_tsquery('SKIES My booKs');
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SELECT to_tsquery('SKIES & My | booKs');
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--trigger
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CREATE TRIGGER tsvectorupdate
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BEFORE UPDATE OR INSERT ON test_tsvector
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FOR EACH ROW EXECUTE PROCEDURE tsvector_update_trigger(a, 'pg_catalog.english', t);
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SELECT count(*) FROM test_tsvector WHERE a @@ to_tsquery('345&qwerty');
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INSERT INTO test_tsvector (t) VALUES ('345 qwerty');
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SELECT count(*) FROM test_tsvector WHERE a @@ to_tsquery('345&qwerty');
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UPDATE test_tsvector SET t = null WHERE t = '345 qwerty';
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SELECT count(*) FROM test_tsvector WHERE a @@ to_tsquery('345&qwerty');
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INSERT INTO test_tsvector (t) VALUES ('345 qwerty');
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SELECT count(*) FROM test_tsvector WHERE a @@ to_tsquery('345&qwerty');
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-- test finding items in GIN's pending list
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create temp table pendtest (ts tsvector);
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create index pendtest_idx on pendtest using gin(ts);
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insert into pendtest values (to_tsvector('Lore ipsam'));
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insert into pendtest values (to_tsvector('Lore ipsum'));
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select * from pendtest where 'ipsu:*'::tsquery @@ ts;
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select * from pendtest where 'ipsa:*'::tsquery @@ ts;
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select * from pendtest where 'ips:*'::tsquery @@ ts;
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select * from pendtest where 'ipt:*'::tsquery @@ ts;
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select * from pendtest where 'ipi:*'::tsquery @@ ts;
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