Horton

Re: Less-silly selectivity for JSONB matching operators

Alexey Bashtanov <bashtanov@imap.cc>

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From: Alexey Bashtanov <bashtanov@imap.cc>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-hackers@lists.postgresql.org
Date: 2020-03-31T16:34:01Z
Lists: pgsql-hackers 
> I was wondering about DEFAULT_MATCHING_SEL.  The difference in purpose
> from DEFAULT_MATCH_SEL wouldn't be too obvious, but then it probably
> wouldn't be anyway.
Fine with me, especially if both new functions are renamed accordingly.

Best, Alex

Commits

  1. Improve selectivity estimation for assorted match-style operators.

  2. Implement operator class parameters