chunweilei commented on a change in pull request #1355: [CALCITE-3228] Error
while applying rule ProjectScanRule: interpreter
URL: https://github.com/apache/calcite/pull/1355#discussion_r311451508
##########
File path: core/src/test/java/org/apache/calcite/tools/FrameworksTest.java
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@@ -292,6 +293,43 @@ private void checkTypeSystem(final int expected,
FrameworkConfig config) {
});
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-3228";>[CALCITE-3228]
+ * Error while applying rule ProjectScanRule:interpreter</a>
+ *
+ * <p>This bug appears under the following conditions:
+ * 1) have an aggregate with group by and multi aggregate calls.
+ * 2) the aggregate can be removed during optimization.
Review comment:
for the query in my test case which is `select min(id) as mi, max(id) as ma
from mytable where id=1 group by id`, there is only on group.
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