Function polars_core::utils::dtypes_to_supertype
source ยท pub fn dtypes_to_supertype<'a, I>(dtypes: I) -> PolarsResult<DataType>where
I: IntoIterator<Item = &'a DataType>,
Expand description
Given multiple data types, determine the data type that all types can safely be cast to.
Returns DataType::Null
if no data types were passed.