executor: Fix tidb crash on index merge reader (#40904)#40982

Closed

ti-chi-bot wants to merge 5 commits intopingcap:release-5.4from ti-chi-bot:cherry-pick-40904-to-release-5.4

+34-8

Commits on Feb 2, 2023

This is an automated cherry-pick of pingcap#40904

windtalker
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ti-chi-bot
committed