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Execution plan don't select index Merge #36332

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yilongrong opened this issue Jul 19, 2022 · 1 comment
Open

Execution plan don't select index Merge #36332

yilongrong opened this issue Jul 19, 2022 · 1 comment
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severity/moderate sig/planner SIG: Planner type/bug The issue is confirmed as a bug.

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@yilongrong
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Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

image

2. What did you expect to see? (Required)

Execution plan should select index merge

image

3. What did you see instead (Required)

Execution plan select indexlookup

4. What is your TiDB version? (Required)

v6.1.0
@yilongrong yilongrong added the type/bug The issue is confirmed as a bug. label Jul 19, 2022
@chrysan
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chrysan commented Jul 20, 2022

It's a known limitation of index merge, duplicated with #26764

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severity/moderate sig/planner SIG: Planner type/bug The issue is confirmed as a bug.
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@chrysan @ChenPeng2013 @yilongrong