Re: [HACKERS] [Proposal] Make the optimiser aware of partitions ordering

On Thu, Sep 21, 2017 at 10:52 AM, Ashutosh Bapat
<ashutosh.bapat@enterprisedb.com> wrote:
> With 9140cf8269b0c4ae002b2748d93979d535891311, we store the
> RelOptInfos of partitions in the RelOptInfo of partitioned table. For
> range partitioned table without default partition, they are arranged
> in the ascending order of partition bounds. This patch may avoid
> MergeAppend if the sort keys match partition keys by creating an
> Append path by picking sorted paths from partition RelOptInfos in
> order. You may use slightly modified version of
> add_paths_to_append_rel().


Yes, I just saw this commit this morning, and this is exactly what I
was missing, thanks for the pointer and the patch!


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