seniorApache Spark
Predicate Pushdown in NoSQL Sinks (e.g., Cassandra/MongoDB).
Updated May 5, 2026
Short answer
Predicate pushdown allows Spark to filter data at the NoSQL database layer instead of fetching it all.
Deep explanation
This depends on the 'Data Source V2' connector implementation. If Spark knows the sink can handle a filter (e.g., WHERE id = 1), it pushes the filter to the NoSQL engine.
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