Re: Parallelized polymorphic aggs, and aggtype vs aggoutputtype

On 23 June 2016 at 08:53, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> I wrote:
>> David Rowley <david.rowley@2ndquadrant.com> writes:
>>> I've gone and implemented the dummy argument approach for
>>> deserialization functions.
>
>> How do you feel about the further idea of locking down the signatures
>> to be exactly "serialize(internal) returns bytea" and "deserialize(bytea,
>> internal) returns internal", and removing pg_aggregate.aggserialtype?
>> I don't see very much value in allowing any other nominal transmission
>> type besides bytea; and the less flexibility in these function signatures,
>> the less chance of confusion/misuse of other internal-related functions.

I don't object to removing it. If we find a use for non-bytea serial
types down the line, then we can add it again.

> Not hearing any objections, pushed that way.

Many thanks for committing those fixes.


-- David Rowley                   http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services