polars.Expr.rechunk#
- Expr.rechunk() Expr [source]#
Create a single chunk of memory for this Series.
Examples
>>> df = pl.DataFrame({"a": [1, 1, 2]})
Create a Series with 3 nulls, append column a then rechunk
>>> df.select(pl.repeat(None, 3).append(pl.col("a")).rechunk()) shape: (6, 1) ┌────────┐ │ repeat │ │ --- │ │ i64 │ ╞════════╡ │ null │ │ null │ │ null │ │ 1 │ │ 1 │ │ 2 │ └────────┘