planner: fix group_concat function couldn't resolve the index of its order-by item (#46419)#47119

Merged

ti-chi-bot[bot] merged 5 commits intopingcap:release-6.1from ti-chi-bot:cherry-pick-46419-to-release-6.1

Oct 30, 2023

+50

Commits on Sep 20, 2023

This is an automated cherry-pick of pingcap#46419

AilinKid
authored and
ti-chi-bot
committed

Commits on Oct 30, 2023