zeroshade commented on code in PR #520:
URL: https://github.com/apache/arrow-go/pull/520#discussion_r2383183064
##########
parquet/internal/encoding/types.go:
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@@ -113,6 +113,14 @@ type DictEncoder interface {
// of [0,dictSize) and is not validated. Returns an error if a
non-integral
// array is passed.
PutIndices(arrow.Array) error
+ // NormalizeDict takes an arrow array and normalizes it to a parquet
+ // native type. e.g. a dictionary of type int8 will be cast to an int32
+ // dictionary for parquet storage.
+ //
+ // The returned array must be released by the caller if different from
+ // the input array. If no normalization is needed, the input array
+ // may be returned as-is.
Review Comment:
fair enough, i'll update to that.
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