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Fix description for tidb_opt_mpp_outer_join_fixed_build_side (#9981) #9987

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Aug 15, 2022
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Fix description for tidb_opt_mpp_outer_join_fixed_build_side (#9981) #9987

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Fix description for tidb_opt_mpp_outer_join_fixed_build_side
TomShawn Aug 15, 2022
e8bb3af
Update system-variables.md
TomShawn Aug 15, 2022
912cf42
Update system-variables.md
TomShawn Aug 15, 2022
6d3bae4
Update system-variables.md
TomShawn Aug 15, 2022
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4 changes: 2 additions & 2 deletions system-variables.md
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Expand Up @@ -1861,7 +1861,7 @@ mysql> desc select count(distinct a) from test.t;
- Persists to cluster: Yes
- Type: Boolean
- Default value: `ON`
- Specifies whether to allow using outer table as the build side in outer join for TiFlash.
- When the variable value is `ON`, the left join operator always uses inner table as the build side and the right join operator always uses outer table as the build side. If you set the value to `OFF`, the outer join operator can use either side of the tables as the build side.

### tidb_opt_prefer_range_scan <span class="version-mark">New in v5.0</span>

Expand Down Expand Up @@ -2368,7 +2368,7 @@ Query OK, 0 rows affected, 1 warning (0.00 sec)
- Scope: SESSION ｜ GLOBAL
- Persists to cluster: Yes
- Type: Boolean
- Default value: `true`
- Default value: `ON`
- This variable controls whether TiDB tracks the memory usage of aggregate functions.

> **Warning:**
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