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AI-generatedConfiguring Idempotent Writes with Delta Lake MERGE in foreachBatch
Configuring Idempotent Writes with Delta Lake MERGE in foreachBatch The goal is to use Structured Streaming’s foreachBatch to write each micro‑batch to a Delta Lake table via a MERGE statement, relying on the merge’s upsert behavior to obtain exactly‑once semantics even when Spark retries a batch. Delta Lake’s MERGE requires a deterministic match condition t