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This page contains DuckDB's built-in limit values.
| Limit | Default value | Configuration option |
|---|---|---|
| Array size | 100000 | - |
| BLOB size | 4 GB | - |
| Expression depth | 1000 | max_expression_depth |
| Memory allocation for a vector | 128 GB | - |
| Memory use | 80% of RAM | memory_limit |
| String size | 4 GB | - |
| Temporary directory size | unlimited | max_temp_directory_size |