Tom Lane 0a5d5a49d9 Cache the result of makesign() across calls of gtrgm_penalty(). ... Since gtrgm_penalty() is usually called many times in a row with the same "newval" (to determine which item on an index page newval fits into best), the makesign() calculation is repetitious. It's expensive enough to make it worth caching the result, so do so. On my machine this is good for more than a 40% savings in the time needed to build a trigram index on /usr/share/dict/words. This is all per a suggestion of Heikki's. In passing, make some mostly-cosmetic improvements in the caching logic in the other functions in this file that rely on caching info in fn_extra.		2011-09-30 23:54:27 -04:00
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data
expected
sql
.gitignore	Support "make check" in contrib	2011-04-25 22:27:11 +03:00
Makefile
pg_trgm--1.0.sql	Fix contrib/pg_trgm to have smoother updates from 9.0.	2011-02-17 15:04:33 -05:00
pg_trgm--unpackaged--1.0.sql	Fix contrib/pg_trgm to have smoother updates from 9.0.	2011-02-17 15:04:33 -05:00
pg_trgm.control
trgm_gin.c	Remove unnecessary #include references, per pgrminclude script.	2011-09-01 10:04:27 -04:00
trgm_gist.c	Cache the result of makesign() across calls of gtrgm_penalty().	2011-09-30 23:54:27 -04:00
trgm_op.c	Remove unnecessary #include references, per pgrminclude script.	2011-09-01 10:04:27 -04:00
trgm.h	Remove many -Wcast-qual warnings	2011-09-11 21:54:32 +03:00