dharanad commented on code in PR #12259:
URL: https://github.com/apache/datafusion/pull/12259#discussion_r1739718763
##########
datafusion/functions/src/core/getfield.rs:
##########
@@ -184,9 +185,29 @@ impl ScalarUDFImpl for GetFieldFunc {
};
match (array.data_type(), name) {
- (DataType::Map(_, _), ScalarValue::Utf8(Some(k))) => {
+ (DataType::Map(_, _), name) => {
let map_array = as_map_array(array.as_ref())?;
- let key_scalar:
Scalar<arrow::array::GenericByteArray<arrow::datatypes::GenericStringType<i32>>>
= Scalar::new(StringArray::from(vec![k.clone()]));
+ if !matches!(name, ScalarValue::Utf8(_) |
ScalarValue::Int64(_) | ScalarValue::Float64(_)) {
+ return exec_err!(
+ "get indexed field is only possible on map with utf8, int64
and float64 indexes. \
+ Tried with {name:?} index")
+ }
+ let key_array: ArrayRef = match name {
Review Comment:
Nice idea. Thanks again
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