deniskuzZ commented on code in PR #4477:
URL: https://github.com/apache/hive/pull/4477#discussion_r1272015821
##########
ql/src/java/org/apache/hadoop/hive/ql/parse/GenTezUtils.java:
##########
@@ -76,6 +80,24 @@ public static UnionWork createUnionWork(
tezWork.add(unionWork);
return unionWork;
}
+
+ private static boolean isRestrictReducerExtrapolation(GenTezProcContext
context) {
+
+ Table table =
context.parseContext.getContext().getLoadTableOutputMap().values()
+ .stream().findFirst().get().getTable();
+
+ // Iceberg table
+ if (DDLUtils.isIcebergTable(table)) {
+ return true;
+ }
+
+ // Hive ACID table
+ if (!table.isNonNative() && AcidUtils.isTransactionalTable(table)) {
Review Comment:
I am not sure it's required for ACID tables as we have built-in compaction
support
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