advancedxy commented on code in PR #395:
URL: https://github.com/apache/datafusion-comet/pull/395#discussion_r1600134166
##########
common/src/main/java/org/apache/comet/vector/CometPlainVector.java:
##########
@@ -111,7 +115,12 @@ public UTF8String getUTF8String(int rowId) {
byte[] result = new byte[length];
Platform.copyMemory(
null, valueBufferAddress + offset, result,
Platform.BYTE_ARRAY_OFFSET, length);
- return UTF8String.fromBytes(result);
+
+ if (!isUuid) {
+ return UTF8String.fromBytes(result);
+ } else {
+ return UTF8String.fromString(convertToUuid(result).toString());
+ }
Review Comment:
+1 for create a parquet file with UUID logical annotation.
Or, maybe we can have an iceberg-integration module in the comet project and
include iceberg as a dep in that module. We can generate iceberg parquet files
with UUID column in that module directly and then test there.
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