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update serverless tidb_gc_life_time restriction (#19511) #19512

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merged 3 commits into from
Nov 29, 2024
Merged

update serverless tidb_gc_life_time restriction (#19511) #19512

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0738419
update description
AmoebaProtozoa Nov 27, 2024
c2d73c0
update limited-sql-feature
AmoebaProtozoa Nov 27, 2024
2be43da
Discard changes to tidb-cloud/limited-sql-features.md
qiancai Nov 29, 2024
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6 changes: 1 addition & 5 deletions system-variables.md
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Expand Up @@ -2840,16 +2840,12 @@ For a system upgraded to v5.0 from an earlier version, if you have not modified

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

> **Note:**
>
> This variable is read-only for [TiDB Cloud Serverless](https://docs.pingcap.com/tidbcloud/select-cluster-tier#tidb-cloud-serverless).

- Scope: GLOBAL
- Persists to cluster: Yes
- Applies to hint [SET_VAR](/optimizer-hints.md#set_varvar_namevar_value): No
- Type: Duration
- Default value: `10m0s`
- Range: `[10m0s, 8760h0m0s]`
- Range: `[10m0s, 8760h0m0s]` for TiDB Self-Managed and [TiDB Cloud Dedicated](https://docs.pingcap.com/tidbcloud/select-cluster-tier#tidb-cloud-dedicated), `[10m0s, 168h0m0s]` for [TiDB Cloud Serverless](https://docs.pingcap.com/tidbcloud/select-cluster-tier#tidb-cloud-serverless)
- The time limit during which data is retained for each GC, in the format of Go Duration. When a GC happens, the current time minus this value is the safe point.

> **Note:**
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