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The Last Value Cache only works with SQL, not InfluxQL; SQL is the default language.
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{{% /note %}}
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### Deleting a Last Values Cache
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### Deleting a Last values cache
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Removing a Last Values Cache is also easy and straightforward, with the instructions below.
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Removing a Last values cache is also easy and straightforward, with the instructions below.
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```
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@@ -421,7 +421,7 @@ Options:
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## Distinct Values Cache
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Similar to the Last Values Cache, the database can cache in RAM the distinct values for a single column in a table or a heirarchy of columns. This is useful for fast metadata lookups, which can return in under 30 milliseoncds. Many of the options are similar to the last value cache. See the CLI output for more information:
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Similar to the Last values cache, the database can cache in RAM the distinct values for a single column in a table or a heirarchy of columns. This is useful for fast metadata lookups, which can return in under 30 milliseoncds. Many of the options are similar to the last value cache. See the CLI output for more information:
After you've tested it, you can create the plugin in the server(the file will need to be there in the plugin-dir) and then create a trigger to trigger it on WAL flushes.
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### Diskless Architecture
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### Diskless architecture
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InfluxDB 3 is able to operate using only object storage with no locally attached disk. While it can use only a disk with no dependencies, the ability to operate without one is a new capability with this release. The figure below illustrates the write path for data landing in the database.
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