zanmato1984 commented on code in PR #47459:
URL: https://github.com/apache/arrow/pull/47459#discussion_r2319678070
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cpp/src/arrow/compute/expression_test.cc:
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@@ -800,6 +804,42 @@ TEST(Expression, BindWithImplicitCasts) {
ExpectBindsTo(cmp(field_ref("i32"),
literal(std::make_shared<DoubleScalar>(10.0))),
cmp(cast(field_ref("i32"), float32()),
literal(std::make_shared<FloatScalar>(10.0f))));
+
+ // decimal int
+ ExpectBindsTo(cmp(field_ref("dec128_3_2"), field_ref("i64")),
+ cmp(field_ref("dec128_3_2"), cast(field_ref("i64"),
decimal128(21, 2))),
+ /*bound_out=*/nullptr, *exciting_schema);
+ ExpectBindsTo(cmp(field_ref("i64"), field_ref("dec128_3_2")),
+ cmp(cast(field_ref("i64"), decimal128(21, 2)),
field_ref("dec128_3_2")),
+ /*bound_out=*/nullptr, *exciting_schema);
+
+ // decimal128 decimal256 with different scales
Review Comment:
You are right, no casts applied for different precisions but same scale.
Added the cases. Thank you!
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