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May 8, 2025 11:16
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Terminal command to inspect a parquet schema overview (with python-polars)
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| parq () { | |
| python -c "import polars as po; schema = po.read_parquet_schema('$1'); n = max(map(len,schema.keys())); [ print(f'{k.ljust(n,\" \")}: {v}') for k, v in schema.items() ]" | |
| } |
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usage:
out:
short_column_name : String long_very_very_long_column_name: Int64