- Snowflake MERGE fails with 'Duplicate row detected during DML action' (100090): find and fix itData Platform · 7 Nov 2026
- Delta MERGE fails with 'multiple source rows matched': find the duplicate keys and fix the loadData Platform · 6 Nov 2026
- foreachBatch MERGE in Azure Databricks: duplicates after restarts, 'multiple source rows matched' and merges that get slower every dayDatabricks on Azure · 28 Oct 2026
- Optimization: faster Delta MERGE on Azure Databricks - pruning, deletion vectors and source deduplicationDatabricks on Azure · 25 Oct 2026
- Sev1: duplicate records after a pipeline re-run — clean up and make loads idempotentData Platform · 25 Oct 2026