| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Rafia Sabih <rafia(dot)sabih(at)enterprisedb(dot)com>, tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>, Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Parallel bitmap heap scan |
| Date: | 2017-02-07 21:45:18 |
| Message-ID: | 20170207214518.tyyzt75rqppfeefv@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
On 2017-02-07 16:36:55 -0500, Robert Haas wrote:
> On Tue, Feb 7, 2017 at 4:15 PM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> > FWIW, I think it'd have been better to not add the new callbacks as
> > parameters to *_create(), but rather have them be "templatized" like the
> > rest of simplehash. That'd require that callback to check the context,
> > to know whether it should use shared memory or not, but that seems fine
> > to me. Right now this pushes the head of simplehash above a
> > cacheline...
>
> Something like the attached?
Yes.
> +#ifndef SH_USE_NONDEFAULT_ALLOCATOR
> +
That should probably be documented in the file header.
Thanks!
Andres
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