From: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
---|---|
To: | Andres Freund <andres(at)anarazel(dot)de> |
Cc: | pgsql-hackers(at)postgresql(dot)org, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Doug Doole <ddoole(at)salesforce(dot)com> |
Subject: | Re: WIP: Faster Expression Processing v4 |
Date: | 2017-03-11 00:15:59 |
Message-ID: | c05c01e6-21e4-4ac2-7c8e-e20d4a342506@2ndquadrant.com |
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Lists: | pgsql-hackers |
On 3/10/17 14:40, Andres Freund wrote:
> I'd really like to get it in. The performance improvements on its own
> are significant, and it provides the basis for significantly larger
> improvements again (JIT) - those followup improvements are large patches
> again though, so I'd rather not do all of that next cycle.
>
> My next step (over the weekend) is to add tests to execQual.c to get it
> a good chunk closer to 100% test coverage, and then do the same for the
> new implementation (there's probably very little additional tests needed
> after the conversion). Given all tests pass before/after, and there's a
> lot of them, I think we can have a reasonable confidence of a low bug
> density.
That seems like a plan, but now would probably be a good time for some
other hackers to take note of this proposal.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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