Jackie-Jiang commented on code in PR #18872:
URL: https://github.com/apache/pinot/pull/18872#discussion_r3706537342
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pinot-core/src/main/java/org/apache/pinot/core/operator/transform/function/CaseTransformFunction.java:
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@@ -822,19 +830,25 @@ protected byte[][]
transformToBytesValuesSVUsingValue(ValueBlock valueBlock) {
return _bytesValuesSV;
}
+ /// The BYTES placeholder is zero-length, which every UUID consumer rejects
("Invalid UUID byte length: 0"). A UUID
+ /// result must fall back to the 16-byte nil UUID instead.
+ private byte[] nullBytesPlaceHolder() {
Review Comment:
This is a bug then. Place holder is not default value, and we should never
read its value, or it will generate wrong result
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