mapleFU commented on code in PR #39347:
URL: https://github.com/apache/arrow/pull/39347#discussion_r1434664371
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go/parquet/internal/encoding/delta_bit_packing.go:
##########
@@ -466,6 +466,10 @@ func (enc *deltaBitPackEncoder) FlushValues() (Buffer,
error) {
// EstimatedDataEncodedSize returns the current amount of data actually
flushed out and written
func (enc *deltaBitPackEncoder) EstimatedDataEncodedSize() int64 {
+ if enc.bitWriter == nil {
Review Comment:
C++ version uses the syntax similiar with `enc.sink.Length()`, but maybe
it's more elegant here
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