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Add extra_columns parameter to all native scan functions and make default behavior consistent #22782

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@nameexhaustion

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@nameexhaustion
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Currently every scan function has its own default behavior that can't be configured.

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added
acceptedReady for implementation
A-io-parquetArea: reading/writing Parquet files
A-io-csvArea: reading/writing CSV files
A-io-jsonArea: reading/writing JSON files
A-apiArea: changes to the public API
on May 16, 2025
changed the title [-]Add `extra_columns` parameter to all (native) scan functions[/-] [+]Add `extra_columns` parameter to all native scan functions[/+] on May 16, 2025
added this to the 2.0.0 milestone on May 18, 2025
changed the title [-]Add `extra_columns` parameter to all native scan functions[/-] [+]Add `extra_columns` parameter to all native scan functions and make defaults consistent[/+] on May 18, 2025
changed the title [-]Add `extra_columns` parameter to all native scan functions and make defaults consistent[/-] [+]Add `extra_columns` parameter to all native scan functions and make default behavior consistent[/+] on May 18, 2025
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A-apiArea: changes to the public APIA-io-csvArea: reading/writing CSV filesA-io-jsonArea: reading/writing JSON filesA-io-parquetArea: reading/writing Parquet filesacceptedReady for implementationenhancementNew feature or an improvement of an existing feature

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        Add `extra_columns` parameter to all native scan functions and make default behavior consistent · Issue #22782 · pola-rs/polars