On Wed, May 10, 2017 at 10:13 PM, Robert Haas <robertmhaas@gmail.com> wrote:
> On Wed, May 10, 2017 at 8:34 AM, Ashutosh Bapat
> <ashutosh.bapat@enterprisedb.com> wrote:
>> Hash partitioning will partition the data based on the hash value of the
>> partition key. Does that require collation? Should we throw an error/warning if
>> collation is specified in PARTITION BY clause?
>
> Collation is only relevant for ordering, not equality. Since hash
> opclasses provide only equality, not ordering, it's not relevant here.
> I'm not sure whether we should error out if it's specified or just
> silently ignore it. Maybe an ERROR is a good idea? But not sure.
>
IMHO, we could simply have a WARNING, and ignore collation, thoughts?
Updated patches attached.
Regards,
Amul
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