forked from docs/doc-exports
Reviewed-by: Wagner, Fabian <fabian.wagner@t-systems.com> Co-authored-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-committed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
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821 B
Does DDM Support Distributed JOINs?
Yes. DDM supports distributed JOINs.
- Redundant fields are added during table design.
- Cross-shard JOIN is implemented by using broadcast tables, ER shards, and ShareJoin.
- Currently, DDM does not allow cross-schema update or deletion of multiple tables.
Parent topic: SQL Syntax