Re: [HACKERS] path toward faster partition pruning

On Tue, Feb 27, 2018 at 8:12 PM, Amit Langote
<Langote_Amit_f8@lab.ntt.co.jp> wrote:
> Ah, OK. I was missing that there is no need to have both parttypcoll and
> partcollation in PartitionSchemeData, as the Vars in rel->partexprs are
> built from a bare PartitionKey (not PartitionSchemeData), and after that
> point, parttypcoll no longer needs to kept around.
>
> I noticed that there is a typo in the patch.
>
> +       memcpy(part_scheme->partcollation, partkey->parttypcoll,
>
> s/parttypcoll/partcollation/g

Committed your version.

> BTW, should there be a relevant test in partition_join.sql?  If yes,
> attached a patch (partitionwise-join-collation-test-1.patch) to add one.

I don't feel strongly about it, but I'm not going to try to prevent
you from adding one, either.

-- 
Robert Haas
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