planner: fix tiflash path will be identified as table dual (#49338)#49395

Merged

ti-chi-bot[bot] merged 3 commits intopingcap:release-7.1from ti-chi-bot:cherry-pick-49338-to-release-7.1

Dec 18, 2023

Commits on Dec 12, 2023

This is an automated cherry-pick of pingcap#49338

AilinKid
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ti-chi-bot
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Commits on Dec 18, 2023

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AilinKid
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AilinKid
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