zeroshade commented on code in PR #38367:
URL: https://github.com/apache/arrow/pull/38367#discussion_r1372311882
##########
go/parquet/internal/encoding/boolean_encoder.go:
##########
@@ -87,3 +89,53 @@ func (enc *PlainBooleanEncoder) FlushValues() (Buffer,
error) {
return enc.sink.Finish(), nil
}
+
+type RleBooleanEncoder struct {
+ encoder
+
+ bufferedValues []bool
+}
+
+func (RleBooleanEncoder) Type() parquet.Type {
+ return parquet.Types.Boolean
+}
+
+func (enc *RleBooleanEncoder) Put(in []bool) {
+ enc.bufferedValues = append(enc.bufferedValues, in...)
+}
+
+func (enc *RleBooleanEncoder) PutSpaced(in []bool, validBits []byte,
validBitsOffset int64) {
+ bufferOut := make([]bool, len(in))
+ nvalid := spacedCompress(in, bufferOut, validBits, validBitsOffset)
+ enc.Put(bufferOut[:nvalid])
+}
+
+func (enc *RleBooleanEncoder) EstimatedDataEncodedSize() int64 {
+ const rleLengthInBytes = 4
+ return rleLengthInBytes + int64(enc.maxRleBufferSize())
+}
+
+func (enc *RleBooleanEncoder) maxRleBufferSize() int {
+ return utils.MaxBufferSize(1, len(enc.bufferedValues))
Review Comment:
renamed the functions
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