On 22 June 2018 at 18:28, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> wrote:
> I've written fixes for items 1-6 above.
>
> I did:
>
> 1. Use an array instead of a List.
> 2. Don't do this loop. palloc0() the partitions array instead. Let
> UPDATE add whatever subplans exist to the zeroed array.
> 3. Track what we initialize in a gapless array and cleanup just those
> ones. Make this array small and increase it only when we need more
> space.
> 4. Only allocate the map array when we need to store a map.
> 5. Work that out in relcache beforehand.
> 6. ditto
I've added this to the July 'fest:
https://commitfest.postgresql.org/18/1690/
--
David Rowley http://www.2ndQuadrant.com/
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