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v8.1.1: Turn off hash agg spill by default #18338

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Aug 27, 2024
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v8.1.1: Turn off hash agg spill by default #18338

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xzhangxian1008 Aug 12, 2024
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minor wording updates
qiancai Aug 12, 2024
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Update system-variables.md
qiancai Aug 12, 2024
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qiancai Aug 19, 2024
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2 changes: 1 addition & 1 deletion system-variables.md
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Expand Up @@ -2185,7 +2185,7 @@ mysql> SELECT job_info FROM mysql.analyze_jobs ORDER BY end_time DESC LIMIT 1;
- 是否持久化到集群：是
- 是否受 Hint [SET_VAR](/optimizer-hints.md#set_varvar_namevar_value) 控制：否
- 类型：布尔型
- 默认值：`ON`
- 默认值：在 v8.1.0 为 `ON`，从 v8.1.1 起为 `OFF`
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- 这个变量用来控制 TiDB 是否支持并行 HashAgg 进行落盘。当该变量设置为 `ON` 时，并行 HashAgg 将支持落盘。该变量将在功能正式发布后废弃。

### `tidb_enable_pipelined_window_function`
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