alamb commented on a change in pull request #1074:
URL: https://github.com/apache/arrow-rs/pull/1074#discussion_r773228604
##########
File path: arrow/src/compute/kernels/comparison.rs
##########
@@ -2522,4 +2603,19 @@ mod tests {
regexp_is_match_utf8_scalar,
vec![true, true, false, false]
);
+ #[test]
+ fn test_eq_dyn_scalar_with_dict() {
+ let key_builder = PrimitiveBuilder::<UInt8Type>::new(3);
+ let value_builder = PrimitiveBuilder::<UInt8Type>::new(2);
+ let mut builder = PrimitiveDictionaryBuilder::new(key_builder,
value_builder);
+ builder.append(123).unwrap();
+ builder.append_null().unwrap();
+ builder.append(223).unwrap();
+ let array = builder.finish();
+ let a_eq = eq_dyn_scalar(&array, 123).unwrap();
Review comment:
looking good to me 👍
##########
File path: arrow/src/compute/kernels/comparison.rs
##########
@@ -898,6 +898,87 @@ pub fn gt_eq_utf8_scalar<OffsetSize:
StringOffsetSizeTrait>(
compare_op_scalar!(left, right, |a, b| a >= b)
}
+pub fn eq_dict_scalar<K, T>(left: &DictionaryArray<K>, right: T) ->
Result<BooleanArray>
+where
+ K: ArrowNumericType,
+ T: IntoArrowNumericType,
+{
+ unpack_dict_comparison(left, eq_dyn_scalar(left.values().as_ref(), right)?)
+}
+/// Perform `left == right` operation on an array and a numeric scalar
+/// value. Supports PrimtiveArrays, and DictionaryArrays that have primitive
values
+pub fn eq_dyn_scalar<T>(left: &dyn Array, right: T) -> Result<BooleanArray>
+where
+ T: IntoArrowNumericType,
+{
+ match left.data_type() {
+ DataType::UInt8 => {
+ let right: u8 = right.try_into().map_err(|_| {
+ ArrowError::ComputeError(format!(
+ "Can not convert {:?} to u8 for comparison with
UInt8Array",
+ right
+ ))
+ })?;
+ eq_scalar::<UInt8Type>(as_primitive_array::<UInt8Type>(left),
right)
Review comment:
👍
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