I need to check for duplicate rows across both tables in this dataset. Let me start by examining the structure and then look for exact duplicates. ```json { "action": "tool_call", "reasoning": "First, I'll check for exact duplicate rows in the ittf_rankings table by grouping on all meaningful columns (excluding metadata columns like _ingestion_timestamp, _batch_id, etc.) and finding groups with count > 1.", "tool": "query_sql", "args": { "sql": "SELECT Rank, Previous, ID, Assoc, Gender, Name, Points, \"Previous Points\", WeekNum, MonthNum, YearNum, COUNT(*) as duplicate_count FROM raw.ittf_rankings GROUP BY Rank, Previous, ID, Assoc, Gender, Name, Points, \"Previous Points\", WeekNum, MonthNum, YearNum HAVING COUNT(*) > 1 ORDER BY duplicate_count DESC LIMIT 50", "purpose": "Find exact duplicate rows in ittf_rankings table based on all business columns" } } ```