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datafusion-config
| Default | (empty) |
| Allowed Values | Colon-separated key:value pairs (e.g., batch_size:16384,coalesce_batches:true) |
| Category | Query Execution |
Detailed Explanation:
Allows passing additional key-value configuration parameters directly to the DataFusion engine. Format is comma-separated key:value pairs using colons, not equals signs.
Recommendation: Leave empty (default) unless you have specific DataFusion tuning requirements validated through testing.