Horton

Re: WIP patch: distinguish selectivity of < from <= and > from >=

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Kuntal Ghosh <kuntalghosh.2007@gmail.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2017-07-07T15:12:49Z
Lists: pgsql-hackers

Attachments

I wrote:
> I looked at that again and realized that one of the answers I was missing
> lies in the behavior of analyze.c's compute_scalar_stats().

I updated the patch's comments based on this.  I'll just attach the
selfuncs.c part of the patch, since nothing else changed.

			regards, tom lane

Commits

  1. Distinguish selectivity of < from <= and > from >=.