tables: fix prefix index, when the charset is utf8, truncate it from runes (#7109) #7126
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winkyao
added
release-note
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/run-all-tests tidb-test=release-2.0 tidb-private-test=release-2.0 tikv=release-2.0 |
zimulala
added
status/LGT2
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/run-common-test tidb-test=release-2.0 tidb-private-test=release-2.0 tikv=release-2.0 |
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/run-common-test tidb-test=release-2.0 tikv=release-2.0 |
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What have you changed? (mandatory)
Cherry-pick from #7109
What is the type of the changes? (mandatory)
How has this PR been tested? (mandatory)
UT
Does this PR affect documentation (docs/docs-cn) update? (mandatory)
NO
Does this PR affect tidb-ansible update? (mandatory)
NO
Does this PR need to be added to the release notes? (mandatory)
YES,
fix prefix index, when the charset is utf8 or utf8mb4, truncate it from runes.Refer to a related PR or issue link (optional)
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