I need to check for duplicate rows across the tables in this dataset. Let me start by examining the main fact tables for exact duplicates. ```json { "action": "tool_call", "reasoning": "Checking for exact duplicate rows in the matches table, which is the largest fact table with 964 rows. I'll group by all columns and find rows that appear more than once.", "tool": "query_sql", "args": { "sql": "SELECT COUNT(*) as total_rows, COUNT(*) - COUNT(DISTINCT (Date, home_team, away_team, home_score, away_score, Round, Venue, Host, Referee)) as exact_duplicates FROM raw.matches_1930_2022", "purpose": "Count exact duplicate rows in matches_1930_2022 by comparing total rows to distinct row combinations" } } ```