manner commented on code in PR #29163:
URL: https://github.com/apache/flink/pull/29163#discussion_r4006582923
##########
flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/UuidCastUtils.java:
##########
@@ -46,6 +47,18 @@ public static String toStringValue(byte[] uuidBytes) {
return new UUID(buffer.getLong(), buffer.getLong()).toString();
}
+ /**
+ * Encodes a {@code UUID} into the canonical 16-byte big-endian
representation used to store a
+ * {@code UUID} value.
+ */
+ public static byte[] toUuidBytes(UUID uuid) {
Review Comment:
In the current location only `RexLiteralUtil` in the planner can reuse it,
to deduplicate it also in `UuidUuidConverter` it would have to move to
`flink-table-common`.
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