```json { "action": "final", "content": "**No columns have missing values in this dataset.**\n\nI checked all 44 columns in the `polling_on_ai_usage_jul_2026` table, and every column has zero nulls (null_count=0). The dataset is 100% complete across all 105 rows.\n\nThis includes:\n- All demographic breakdowns (Gender, Age, Income, Education, Race, Region, Occupation, Employment)\n- Question and response identifiers\n- The percentage measures for each demographic segment\n- Metadata columns (_ingestion_timestamp, _batch_id, _source_file, _source_system)\n\nThe query returned 0 rows because no column met the condition of having missing values — this is the correct and complete answer to your question." } ```