add has_distinct property in expression.Expr#215
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Signed-off-by: tison <wander4096@gmail.com>
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@hanfei1991 @BusyJay PTAL ref pingcap/tidb#22867 pingcap/tiflash#1428 I'm unsure how to pass tidb build stage without merging this pr so that tidb knows the new schema. |
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@hanfei1991 @BusyJay this pr still blocks for at least 1 approving review required, maybe our bot doesn't land on this repo. Please take action for continue the progress, thanks. |
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Mar 8, 2021
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/LGTM |
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ref pingcap/tiflash#1428