Function datafusion_expr::type_coercion::functions::data_types
source ยท pub fn data_types(
current_types: &[DataType],
signature: &Signature,
) -> Result<Vec<DataType>>Expand description
Performs type coercion for function arguments.
Returns the data types to which each argument must be coerced to
match signature.
For more details on coercion in general, please see the