jayzhan211 commented on code in PR #14409:
URL: https://github.com/apache/datafusion/pull/14409#discussion_r1943937054
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datafusion/expr-common/src/type_coercion/binary.rs:
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@@ -595,7 +595,7 @@ fn type_union_resolution_coercion(
/// Handle type union resolution including struct type and others.
pub fn try_type_union_resolution(data_types: &[DataType]) ->
Result<Vec<DataType>> {
- let err = match try_type_union_resolution_with_struct(data_types) {
+ let err = match try_type_union_resolution_with_struct(data_types, false) {
Review Comment:
We might need unique type for `coalesce` as well?
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