SteveYurongSu commented on code in PR #9231:
URL: https://github.com/apache/iotdb/pull/9231#discussion_r1129020921
##########
tsfile/src/main/java/org/apache/iotdb/tsfile/compress/IUnCompressor.java:
##########
@@ -312,4 +315,45 @@ public CompressionType getCodecName() {
return CompressionType.GZIP;
}
}
+
+ class ZstdUnCompressor implements IUnCompressor {
+
+ @Override
+ public int getUncompressedLength(byte[] array, int offset, int length)
throws IOException {
+ return (int) Zstd.decompressedSize(array, offset, length);
+ }
+
+ @Override
+ public int getUncompressedLength(ByteBuffer buffer) throws IOException {
+ return (int) Zstd.decompressedSize(buffer);
Review Comment:
Is this a time-consuming call?
##########
tsfile/src/main/java/org/apache/iotdb/tsfile/compress/IUnCompressor.java:
##########
@@ -312,4 +315,45 @@ public CompressionType getCodecName() {
return CompressionType.GZIP;
}
}
+
+ class ZstdUnCompressor implements IUnCompressor {
+
+ @Override
+ public int getUncompressedLength(byte[] array, int offset, int length)
throws IOException {
+ return (int) Zstd.decompressedSize(array, offset, length);
Review Comment:
Is this a time-consuming call?
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