Correct obsolete UNION hash aggs comment.
authorPeter Geoghegan <pg@bowt.ie>
Wed, 29 Jul 2020 00:14:06 +0000 (17:14 -0700)
committerPeter Geoghegan <pg@bowt.ie>
Wed, 29 Jul 2020 00:14:06 +0000 (17:14 -0700)
commitb6c15e71f33fe9aa7f38cc7bde26d420fbaaef5b
tree901140e24b508b52024f7f445b36d4a29ef8f5ea
parente362f469c50f6e671285640cc2087345ab55a9b2
Correct obsolete UNION hash aggs comment.

Oversight in commit 1f39bce0, which added disk-based hash aggregation.

Backpatch: 13-, where disk-based hash aggregation was introduced.
src/backend/optimizer/prep/prepunion.c