ozankabak commented on code in PR #5342:
URL: https://github.com/apache/arrow-datafusion/pull/5342#discussion_r1119405340
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datafusion/expr/src/type_coercion/binary.rs:
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@@ -238,13 +238,32 @@ fn comparison_binary_numeric_coercion(
(_, Decimal128(_, _)) => get_comparison_common_decimal_type(rhs_type,
lhs_type),
(Float64, _) | (_, Float64) => Some(Float64),
(_, Float32) | (Float32, _) => Some(Float32),
- (Int64, _) | (_, Int64) => Some(Int64),
- (Int32, _) | (_, Int32) => Some(Int32),
- (Int16, _) | (_, Int16) => Some(Int16),
- (Int8, _) | (_, Int8) => Some(Int8),
+ // start checking from Int64, that is the most inclusive integer type
Review Comment:
I am confused by the sum. Aren't we just "merging" the schemas? In that
case, the narrowest type that can represent both sides should be chosen, no? Am
I missing something here?
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