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docs:Add tidb_opt_force_inline_cte system vars usage description in docs. #10343

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8 changes: 8 additions & 0 deletions system-variables.md
Original file line number Diff line number Diff line change
Expand Up @@ -2377,6 +2377,14 @@ explain select * from t where age=5;
- Default value: `OFF`
- This variable is used to control whether to allow `INSERT`, `REPLACE`, and `UPDATE` statements to operate on the `_tidb_rowid` column. This variable can be used only when you import data using TiDB tools.

### tidb_opt_force_inline_cte <span class="version-mark">New in v6.3.0</span>

- Scope: SESSION | GLOBAL
- Persists to cluster: Yes
- Type: Boolean
- Default value: `OFF`
- This variable is used to control whether CTEs in the entire session are force inlined or not. The default value is `OFF`, which means that inline cte is not enabled by default. However, you can still enable inline cte by specifying `MERGE()hint`. If the variable is set to `ON`, all CTEs (except recursive CTE) for this session are forced to enable inlining.
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### tidb_partition_prune_mode <span class="version-mark">New in v5.1</span>

- Scope: SESSION | GLOBAL
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