Re: Parallel Aggregates for string_agg and array_agg

David Rowley <david.rowley@2ndquadrant.com>

From: David Rowley <david.rowley@2ndquadrant.com>

To: Tom Lane <tgl@sss.pgh.pa.us>

Cc: Stephen Frost <sfrost@snowman.net>, Tomas Vondra <tomas.vondra@2ndquadrant.com>, Andres Freund <andres@anarazel.de>, PostgreSQL-development <pgsql-hackers@postgresql.org>

Date: 2018-03-28T15:36:42Z

Lists: pgsql-hackers

Attachments

parallel_string_agg_array_agg_tests.patch (application/octet-stream) patch

On 27 March 2018 at 09:27, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> The main thing that remains undone is to get some test coverage ---
> AFAICS, none of these new functions get exercised in the standard
> regression tests.

I've attached a patch which implements some tests for the new functions.

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

Commits

Fix unstable aggregate regression test
- f5d0e866404a 16.3 landed
- d6a6957d53e3 17.0 landed
Allow parallel aggregate on string_agg and array_agg
- 16fd03e95654 16.0 landed
Improve performance of ORDER BY / DISTINCT aggregates
- 1349d2790bf4 16.0 cited
Support ORDER BY within aggregate function calls, at long last providing a
- 34d26872ed81 9.0.0 cited
Fix broken markup.
- 6a6efb964092 9.0.0 cited