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return_type in datafusion::logical_expr::function - Rust
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Function datafusion::logical_expr::function::return_type

source · 
pub fn return_type(
    fun: &BuiltinScalarFunction,
    input_expr_types: &[DataType]
) -> Result<DataType, DataFusionError>
👎Deprecated since 27.0.0: please use BuiltinScalarFunction::return_type instead
Expand description

Returns the datatype of the scalar function