Cache data
Endpoints
Overview
Manage the in-memory cache.
Distinct Value Cache
The Distinct Value Cache (DVC) lets you cache distinct values of one or more columns in a table, improving the performance of queries that return distinct tag and field values.
The DVC is an in-memory cache that stores distinct values for specific columns in a table. When you create an DVC, you can specify what columns’ distinct values to cache, the maximum number of distinct value combinations to cache, and the maximum age of cached values. A DVC is associated with a table, which can have multiple DVCs.
Last value cache
The Last Value Cache (LVC) lets you cache the most recent values for specific fields in a table, improving the performance of queries that return the most recent value of a field for specific series or the last N values of a field.
The LVC is an in-memory cache that stores the last N number of values for specific fields of series in a table. When you create an LVC, you can specify what fields to cache, what tags to use to identify each series, and the number of values to cache for each unique series. An LVC is associated with a table, which can have multiple LVCs.