I need to identify the categorical columns and count their distinct values. From the dataset card, I can see the CLASSIFIERS section lists categorical columns, but I should get a comprehensive view of all columns and their distinct counts. Let me query the column metadata to get distinct counts for all columns: ```json { "action": "tool_call", "reasoning": "The dataset card shows CLASSIFIERS (Player1, Player2, HomeWinner) but I need to check all columns systematically. The analytics.column_overview metadata table contains distinct_count for every column, which will give me the exact answer for all categorical columns in one query.", "tool": "query_sql", "args": { "sql": "SELECT table_name, column_name, phys_type, semantic_role, distinct_count, approx_distinct_count FROM analytics.column_overview WHERE table_name = 'raw.table_tennis_sept2022' ORDER BY distinct_count DESC", "purpose": "Get distinct value counts for all columns to identify categorical columns and their cardinality", "source": "raw" } } ```