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remove ambiguous TTL from glossary (#18588) (#18593)
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ti-chi-bot authored Aug 15, 2024
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Expand Up @@ -168,7 +168,3 @@ Top SQL helps locate SQL queries that contribute to a high load of a TiDB or TiK
### TSO

Because TiKV is a distributed storage system, it requires a global timing service, Timestamp Oracle (TSO), to assign a monotonically increasing timestamp. In TiKV, such a feature is provided by PD, and in Google [Spanner](http://static.googleusercontent.com/media/research.google.com/en//archive/spanner-osdi2012.pdf), this feature is provided by multiple atomic clocks and GPS.

### TTL

[Time to live (TTL)](/time-to-live.md) is a feature that allows you to manage TiDB data lifetime at the row level. For a table with the TTL attribute, TiDB automatically checks data lifetime and deletes expired data at the row level.

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