Re: WIP Patch: Precalculate stable functions, infrastructure v1

From: Aleksander Alekseev <a(dot)alekseev(at)postgrespro(dot)ru>
To: Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>
Cc: Marina Polyakova <m(dot)polyakova(at)postgrespro(dot)ru>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: WIP Patch: Precalculate stable functions, infrastructure v1
Date: 2017-05-10 15:30:04
Message-ID: 20170510153004.GA32073@e733.localdomain
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Hi Marina,

I've noticed that this patch needs a review and decided to take a look.
Here is a short summary:

* Patches apply to the master branch. There are a trailing whitespaces,
though.
* All tests pass.
* I see 8-10% performance improvement on full text search queries.
* It seems that there is no obvious performance degradation on regular
queries (according to pgbench).

In short, it looks very promising.

--
Best regards,
Aleksander Alekseev

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