Thestr.split(",")method splits each string in the 'text' column by commas. This is useful for parsing CSV-like data. Concatenate Strings This example shows how to concatenate strings from multiple columns. concat.py import polars as pl df = pl.DataFrame({ "first_name": ["John", "Jane...
Dataframes powered by a multithreaded, vectorized query engine, written in Rust - polars/py-polars/polars/lazyframe/frame.py at py-1.5.0 · pola-rs/polars
It seems the issue arises when doing a diagonal concat and one of the lazyframes is missing a column which is of type enum. If I directly concatenate LazyFrames without going via parquet, I do not get the error. If I use Categorical instead of enum, I do not get the error. 👍 1...