polars with decimal - Githubissues

pola-rs / polars

Dataframes powered by a multithreaded, vectorized query engine, written in Rust

https://docs.pola.rs

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Open cfkstat opened 4 months ago

cfkstat commented 4 months ago

Polars 1.0 read_parquet not convert decimal into float，how to control this like polars 0.20，because the decimal use more memory than float 64.

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ritchie46 commented 4 months ago

read_parquet().with_columns(pl.col(pl.Decimal()).cast(pl.Float64))