Re: [HACKERS] path toward faster partition pruning - Mailing list pgsql-hackers

From Amit Langote
Subject Re: [HACKERS] path toward faster partition pruning
Date
Msg-id c91299c4-199b-0f16-339b-a29d6d2a39ee@lab.ntt.co.jp
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In response to Re: [HACKERS] path toward faster partition pruning  (David Rowley <david.rowley@2ndquadrant.com>)
Responses Re: [HACKERS] path toward faster partition pruning  (Michael Paquier <michael@paquier.xyz>)
Re: [HACKERS] path toward faster partition pruning  (Alvaro Herrera <alvherre@2ndquadrant.com>)
List pgsql-hackers
On 2018/05/09 11:31, David Rowley wrote:
> On 9 May 2018 at 14:29, Amit Langote <Langote_Amit_f8@lab.ntt.co.jp> wrote:
>> On 2018/05/09 11:20, Michael Paquier wrote:
>>> While looking at this code, is there any reason to not make
>>> gen_partprune_steps static?  This is only used in partprune.c for now,
>>> so the intention is to make it available for future patches?
>>
>> Yeah, making it static might be a good idea.  I had made it externally
>> visible, because I was under the impression that the runtime pruning
>> related code would want to call it from elsewhere within the planner.
>> But, instead it introduced a make_partition_pruneinfo() which in turn
>> calls get_partprune_steps.
> 
> Yeah. Likely left over from when run-time pruning was generating the
> steps during execution rather than during planning.

Here is a patch that does that.

Thanks,
Amit

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