Trim ORDER BY/DISTINCT aggregate pathkeys in gather_grouping_paths Similar to d8a295389, trim off any PathKeys which are for ORDER BY / DISTINCT aggregate functions from the PathKey List for the Gather Merge paths created by gather_grouping_paths(). These additional PathKeys are not valid to use after grouping has taken place as these PathKeys belong to columns which are inputs to an aggregate function and, therefore are unavailable after aggregation.
Reported-by: Alexander Lakhin Discussion: https://postgr.es/m/cf63174c-8c89-3953-cb49-48f41f749...@gmail.com Backpatch-through: 16, where 1349d2790 was added Branch ------ REL_16_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/4e1ff2aadefbfbf798a4d318514ac85b2fbdc5aa Modified Files -------------- src/backend/optimizer/plan/planner.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-)
