| From: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Stephen Frost <sfrost(at)snowman(dot)net>, Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Parallel Aggregates for string_agg and array_agg |
| Date: | 2018-03-29 03:49:02 |
| Message-ID: | CAKJS1f95uF3h0PdMj-zqnTcJXnF68bT4nUKgiXtAdEz44W5HWg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On 29 March 2018 at 03:05, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> wrote:
> On 03/28/2018 03:54 PM, Tom Lane wrote:
>> I had in mind to look at exprType() of the argument.
>
> Right, I'm fine with that.
Attached is v9, which is based on Tom's v8 but includes the new tests
and I think the required fix to disable use of the serial/deserial
function for array_agg().
--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
| Attachment | Content-Type | Size |
|---|---|---|
| combinefn_for_string_and_array_aggs_v9.patch | application/octet-stream | 45.3 KB |
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