jinxing64 commented on a change in pull request #2000:
URL: https://github.com/apache/calcite/pull/2000#discussion_r434966705
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File path:
core/src/test/java/org/apache/calcite/test/MaterializedViewSubstitutionVisitorTest.java
##########
@@ -410,6 +410,18 @@
sql(mv, query).noMat();
}
Review comment:
How about some doc here to explain why matching should fail.
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File path: core/src/main/java/org/apache/calcite/plan/SubstitutionVisitor.java
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@@ -1899,8 +1899,12 @@ public static MutableRel
unifyAggregates(MutableAggregate query,
if (i < 0) {
return null;
}
+ SqlAggFunction aggFunction = getRollup(aggregateCall.getAggregation());
Review comment:
How about some doc to explain why matching should fail when the function
doesn't support roll-up.
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