Extract Data Source is a compressed snapshot of data from a regular data source.
This data is saved to a local file and can be updated from the original data source at any time.
The extract data file is optimized for data grouping. It reduces the initial dashboard load time.
The Dashboard API provides the DashboardExtractDataSource class that can be used as any other Dashboard.DataSources. You should specify the original data source and the extract data file.
A special in-memory cache allows you to improve performance when accessing extract data. You can use the static class ExtractCacheOptions to specify a cache type for better results.
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