polars_core/utils/
schema.rs

1use polars_utils::format_pl_smallstr;
2
3use crate::prelude::*;
4
5/// Convert a collection of [`DataType`] into a schema.
6///
7/// Field names are set as `column_0`, `column_1`, and so on.
8///
9/// [`DataType`]: crate::datatypes::DataType
10pub fn dtypes_to_schema<I>(dtypes: I) -> Schema
11where
12    I: IntoIterator<Item = DataType>,
13{
14    dtypes
15        .into_iter()
16        .enumerate()
17        .map(|(i, dtype)| Field::new(format_pl_smallstr!("column_{i}"), dtype))
18        .collect()
19}