Jackie-Jiang commented on code in PR #12538:
URL: https://github.com/apache/pinot/pull/12538#discussion_r1552656087
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pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/HashUtils.java:
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@@ -36,6 +40,31 @@ public static byte[] hashMD5(byte[] bytes) {
return Hashing.md5().hashBytes(bytes).asBytes();
}
+ /**
+ * Returns a byte array that is a concatenation of the binary representation
of each of the passed UUID values. This
+ * is done by getting a String from each value by calling {@link
Object#toString()}, which is then used to create a
+ * {@link UUID} object. The 16 bytes of each UUID are appended to a buffer
which is then returned in the result.
+ * If any of the values is not a valid UUID, then we return the result of
{@link #concatenate}.
+ */
+ public static byte[] hashUUID(Object[] values) {
+ byte[] result = new byte[values.length * 16];
+ ByteBuffer byteBuffer =
ByteBuffer.wrap(result).order(ByteOrder.BIG_ENDIAN);
+ for (Object value : values) {
+ if (value == null) {
+ return concatenate(values);
Review Comment:
If it throws exception here it basically tells that the data is not UUID.
IMO this is similar to user defining a column as LONG but inserting string
values. We will throw exception in that scenario and fail the ingestion
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