Dear Postgres, Recently I work on grouping sets and I find the last param numGroups of create_groupingsets_path is not used. In create_groupingsets_path we use rollup->numGroups to do cost_agg. So I remove the param numGroups for create_groupingsets_path.
I generate a diff.patch, which is sent as an attachment. I really hope this can be committed to Postgres. Thank you a lot! Best wishes to you! zxuejing
diff.patch
Description: diff.patch
