zeroshade commented on code in PR #37309:
URL: https://github.com/apache/arrow/pull/37309#discussion_r1303543212
##########
go/arrow/array/dictionary.go:
##########
@@ -1674,6 +1674,135 @@ func (u *unifier) GetResultWithIndexType(indexType
arrow.DataType) (arrow.Array,
return MakeFromData(dictData), nil
}
+type binaryUnifier struct {
+ mem memory.Allocator
+ memoTable *hashing.BinaryMemoTable
+}
+
+// NewBinaryDictionaryUnifier constructs and returns a new dictionary unifier
for dictionaries
+// of binary values, using the provided allocator for allocating the unified
dictionary
+// and the memotable used for building it.
+func NewBinaryDictionaryUnifier(alloc memory.Allocator) DictionaryUnifier {
+ return &binaryUnifier{
+ mem: alloc,
+ memoTable: hashing.NewBinaryMemoTable(0, 0,
NewBinaryBuilder(alloc, arrow.BinaryTypes.Binary)),
+ }
+}
+
+func (u *binaryUnifier) Release() {
+ u.memoTable.Release()
+}
+
+func (u *binaryUnifier) Unify(dict arrow.Array) (err error) {
+ if !arrow.TypeEqual(arrow.BinaryTypes.Binary, dict.DataType()) {
+ return fmt.Errorf("dictionary type different from unifier: %s,
expected: %s", dict.DataType(), arrow.BinaryTypes.Binary)
+ }
Review Comment:
Ah! I completely forgot that I had the exported interface. My bad there. I
think it's better to follow the interface for now probably.
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