| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Amit Langote <amitlangote09(at)gmail(dot)com>, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>, Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com>, Beena Emerson <memissemerson(at)gmail(dot)com>, amul sul <sulamul(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
| Subject: | Re: [HACKERS] Runtime Partition Pruning |
| Date: | 2018-04-24 17:16:11 |
| Message-ID: | 20180424171611.kfou3ccn73n3k5cz@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
On 2018-04-19 12:04:35 +1200, David Rowley wrote:
> On 19 April 2018 at 03:13, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> > 10% is more than a "slight" improvement, I'd say! It's certainly got
> > to be worth avoiding the repeated calls to ExecInitExpr, whatever we
> > do about the memory contexts.
Yea, that seems important. Good that that got in.
What I wonder, after skimming this change, is where the relevant
expression context is reset? That's not really related to this change
but the wider thread, I just noticed it while looking at this.
Greetings,
Andres Freund
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