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statistics: set the right range for tidb_analyze_partition_concurrency (
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Oreoxmt authored Oct 10, 2024
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Expand Up @@ -977,7 +977,8 @@ MPP 是 TiFlash 引擎提供的分布式计算框架,允许节点之间的数
- 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
- 默认值:`2`。TiDB v7.4.0 及其之前版本默认值为 `1`
- 这个变量用于 TiDB analyze 分区表时,对分区表统计信息进行读写的并发度。
- 范围:`[1, 128]`。在 v8.4.0 之前版本中,取值范围是 `[1, 18446744073709551615]`
- 这个变量用于 TiDB analyze 分区表时,写入分区表统计信息的并发度。
### `tidb_analyze_version` <span class="version-mark">从 v5.1.0 版本开始引入</span>
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