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spark-connect-js

StreamingOutputMode

type StreamingOutputMode = "append" | "complete" | "update";

Defined in: streaming/types.ts:18

Output mode of a streaming write.

  • "append" only writes new rows since the last trigger.
  • "complete" rewrites the entire aggregated result every trigger; valid only for aggregations.
  • "update" writes rows that changed since the last trigger.

Not every sink supports every mode; consult Spark’s docs for the source-sink matrix.