BRIE: add experimental notice in BACKUP and RESTORE sql (#15528)#15541

Merged

ti-chi-bot[bot] merged 3 commits intopingcap:release-5.1from ti-chi-bot:cherry-pick-15528-to-release-5.1

Nov 28, 2023

+8

Commits on Nov 28, 2023

This is an automated cherry-pick of pingcap#15528

YuJuncen
authored and
ti-chi-bot
committed
Discard changes to migrate-from-tidb-to-tidb.md
Oreoxmt
authored
Discard changes to replicate-between-primary-and-secondary-clusters.md
Oreoxmt
authored