Tom Lane 9728eda792 Fix contrib/pg_trgm's similarity() function for trigram-free strings. ...

Cases such as similarity('', '') produced a NaN result due to computing
0/0.  Per discussion, make it return zero instead.

This appears to be the basic cause of bug #7867 from Michele Baravalle,
although it remains unclear why her installation doesn't think Cyrillic
letters are letters.

Back-patch to all active branches.

2013-02-13 14:07:06 -05:00

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data

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expected

Fix contrib/pg_trgm's similarity() function for trigram-free strings.

2013-02-13 14:07:06 -05:00

sql

Fix contrib/pg_trgm's similarity() function for trigram-free strings.

2013-02-13 14:07:06 -05:00

.gitignore

Support "make check" in contrib

2011-04-25 22:27:11 +03:00

Makefile

Convert contrib modules to use the extension facility.

2011-02-13 22:54:49 -05:00

pg_trgm--1.0.sql

Throw a useful error message if an extension script file is fed to psql.

2011-10-12 15:45:03 -04:00

pg_trgm--unpackaged--1.0.sql

Throw a useful error message if an extension script file is fed to psql.

2011-10-12 15:45:03 -04:00

pg_trgm.control

Convert contrib modules to use the extension facility.

2011-02-13 22:54:49 -05:00

trgm_gin.c

Remove unnecessary #include references, per pgrminclude script.

2011-09-01 10:04:27 -04:00

trgm_gist.c

Replace int2/int4 in C code with int16/int32

2012-06-25 01:51:46 +03:00

trgm_op.c

Fix contrib/pg_trgm's similarity() function for trigram-free strings.

2013-02-13 14:07:06 -05:00

trgm.h

Remove many -Wcast-qual warnings

2011-09-11 21:54:32 +03:00