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polars.LazyFrame.select_seq

LazyFrame.select_seq(
    *exprs: IntoExpr | Iterable[IntoExpr],
    **named_exprs: IntoExpr,
) → LazyFrame

Select columns from this LazyFrame.

This will run all expression sequentially instead of in parallel. Use this when the work per expression is cheap.

engine:In MemoryStreamingDistributed
Parameters:
*exprs

Column(s) to select, specified as positional arguments. Accepts expression input. Strings are parsed as column names, other non-expression inputs are parsed as literals.

**named_exprs

Additional columns to select, specified as keyword arguments. The columns will be renamed to the keyword used.

See also

select

© 2020 Ritchie Vink
© 2022 Polars contributors
Licensed under the MIT License.
https://docs.pola.rs/api/python/stable/reference/lazyframe/api/polars.LazyFrame.select_seq.html

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