pub fn cast(column: &Column, type_name: &str) -> Result<Column, String>Expand description
Cast column to the given type (PySpark cast). Fails on invalid conversion. String-to-boolean uses custom parsing (“true”/“false”/“1”/“0”) since Polars does not support Utf8->Boolean. String-to-date accepts date and datetime strings (e.g. “2025-01-01 10:30:00” truncates to date) for Spark parity.