perf-tuning: add blacklist-control-plan.md (#3253) #3761
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@lzmhhh123 please accept the invitation then you can push to the cherry-pick pull requests. |
yikeke
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Jun 22, 2020
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| 当函数的计算过程由于下推而出现异常时，可通过黑名单功能禁止其下推来快速恢复业务。具体而言，你可以将上述支持的函数或运算符名加入黑名单 `mysql.expr_pushdown_blacklist` 中，以禁止特定表达式下推。 | ||
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/merge |
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/run-all-tests |
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cherry-pick #3253 to release-3.1
What is changed, added or deleted? (Required)
Add blacklist-control-plan.md
Which TiDB version(s) do your changes apply to? (Required)
What is the related PR or file link(s)?