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planner: add variable tidb_enable_inl_join_inner_multi_pattern (#12944) #13296

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Apr 21, 2023
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planner: add variable tidb_enable_inl_join_inner_multi_pattern (#12944) #13296

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planner: add variable tidb_enable_inl_join_inner_multi_pattern
Oreoxmt Mar 17, 2023
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Update system-variables.md
ran-huang Apr 19, 2023
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8 changes: 8 additions & 0 deletions system-variables.md
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Expand Up @@ -1684,6 +1684,14 @@ MPP is a distributed computing framework provided by the TiFlash engine, which a
- If the TiDB version before the upgrade is earlier than v6.1.0, the default value of this variable after the upgrade is `ON`.
- If the TiDB version before the upgrade is v6.1.0 or later, the default value of the variable after the upgrade follows the value before the upgrade.

### `tidb_enable_inl_join_inner_multi_pattern` <span class="version-mark">New in v7.0.0</span>
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- Scope: SESSION | GLOBAL
- Persists to cluster: Yes
- Type: Boolean
- Default value: `OFF`
- This variable controls whether Index Join is supported when the inner table has `Selection` or `Projection` operators on it. The default value `OFF` means that Index Join is not supported in this scenario.

### tidb_enable_ordered_result_mode

- Scope: SESSION | GLOBAL
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