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Make contrib/pg_trgm also support regex searches with GiST indexes.

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This wasn't addressed in the original patch, but it doesn't take very
much additional code to cover the case, so let's get it done.

Since pg_trgm 1.1 hasn't been released yet, I just changed the definition
of what's in it, rather than inventing a 1.2.
This commit is contained in:
Tom Lane
2013-04-10 13:30:14 -04:00
parent e543631f3c
commit 6f5b8beb64
10 changed files with 352 additions and 35 deletions
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23
contrib/pg_trgm/sql/pg_trgm.sql
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@ -90,3 +90,26 @@ select * from test2 where t like '%bcd%';
select * from test2 where t like E'%\\bcd%';
select * from test2 where t ilike '%BCD%';
select * from test2 where t ilike 'qua%';
select * from test2 where t like '%z foo bar%';
select * from test2 where t like ' z foo%';
explain (costs off)
select * from test2 where t ~ '[abc]{3}';
explain (costs off)
select * from test2 where t ~* 'DEF';
select * from test2 where t ~ '[abc]{3}';
select * from test2 where t ~ 'a[bc]+d';
select * from test2 where t ~ '(abc)*$';
select * from test2 where t ~* 'DEF';
select * from test2 where t ~ 'dEf';
select * from test2 where t ~* '^q';
select * from test2 where t ~* '[abc]{3}[def]{3}';
select * from test2 where t ~* 'ab[a-z]{3}';
select * from test2 where t ~* '(^| )qua';
select * from test2 where t ~ 'q.*rk$';
select * from test2 where t ~ 'q';
select * from test2 where t ~ '[a-z]{3}';
select * from test2 where t ~* '(a{10}|b{10}|c{10}){10}';
select * from test2 where t ~ 'z foo bar';
select * from test2 where t ~ ' z foo bar';
select * from test2 where t ~ ' z foo bar';
select * from test2 where t ~ ' z foo';