felipecrv commented on code in PR #14223:
URL: https://github.com/apache/arrow/pull/14223#discussion_r1097689465
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go/arrow/array/encoded.go:
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@@ -68,6 +70,102 @@ func (r *RunEndEncoded) Release() {
r.ends.Release()
}
+// LogicalValuesArray returns an array holding the values of each
+// run, only over the range of run values inside the logical offset/length
+// range of the parent array.
+//
+// Example
+//
+// For this array:
+// RunEndEncoded: { Offset: 150, Length: 1500 }
+// RunEnds: [ 1, 2, 4, 6, 10, 1000, 1750, 2000 ]
+// Values: [ "a", "b", "c", "d", "e", "f", "g", "h" ]
+//
+// LogicalValuesArray will return the following array:
Review Comment:
The C++ implementation has an iterator class that allows a zero-copy
iteration over the runs that match the logical `(offset, length)` slice. Do you
have a similar thing in Go or is this function used instead?
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