planner/core: fix index out of bound bug when empty dual table is remove for mpp query (#28251)#28279

Merged

ti-chi-bot merged 2 commits intopingcap:release-5.1from ti-srebot:release-5.1-452d34c1ee27

Feb 10, 2022

+39-2

Commits on Sep 23, 2021

cherry pick pingcap#28251 to release-5.1

windtalker
authored and
ti-srebot
committed

Commits on Feb 10, 2022

Merge branch 'release-5.1' into release-5.1-452d34c1ee27
ti-chi-bot
authored