Re: pg_trgm indexes giving bad estimations? - Mailing list pgsql-performance

From Tom Lane
Subject Re: pg_trgm indexes giving bad estimations?
Date
Msg-id 13752.1162360877@sss.pgh.pa.us
Whole thread Raw
In response to Re: pg_trgm indexes giving bad estimations?  (Ben <bench@silentmedia.com>)
List pgsql-performance
Ben <bench@silentmedia.com> writes:
> Unfortunately, it's not at all clear to me from reading
> http://www.postgresql.org/docs/8.1/interactive/xoper-optimization.html#AEN33077
> how like impliments selectivity. Any pointers on where to look?

likesel() and subsidiary functions in src/backend/utils/adt/selfuncs.c

            regards, tom lane

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