I need to get a comprehensive list of all columns across all tables with their data types and semantic meanings. The evidence so far shows only the first 50 columns from a subset of tables. Let me query the complete column catalog to get all columns. ```json { "action": "tool_call", "reasoning": "The evidence shows only 50 columns from a few tables, but the dataset has 43 tables with 2,039,355 rows total. I need to query the complete column catalog to get all columns with their types and semantic roles. The meta.columns table should contain this information for all tables.", "tool": "query_sql", "args": { "sql": "SELECT table_name, column_name, phys_type AS data_type, semantic_role, rough_kind FROM meta.columns ORDER BY table_name, column_name", "purpose": "Get complete list of all columns across all tables with their data types and semantic meanings" } } ```