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Documentation Index

Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt

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DirectQuery schema can have both external tables and in-memory Datastore tables. However, it’s important to note that joins between external tables and in-memory ones are not possible. In other words, the in-memory tables can only exist as isolated stores. In-memory tables are not directly linked to the base table.
Composite DirectQuery database
These isolated tables can be used for instance in measures via a Copper join or via get-by-key queries. Having this data in-memory avoids a round-trip to the external database (which includes network calls) when computing the measures. For instance, if some get-by-key queries are executed for a lot of locations in a measure, having a local datastore can make the query a lot faster.