xy2953396112 commented on a change in pull request #2021:
URL: https://github.com/apache/calcite/pull/2021#discussion_r446503752
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File path: core/src/test/java/org/apache/calcite/test/MockSqlOperatorTable.java
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@@ -125,6 +125,18 @@ public RelDataType inferReturnType(SqlOperatorBinding
opBinding) {
}
}
+ /** "MYAGGFUNC" user-defined aggregate function. This agg function accept
one or more arguments
+ * in order to reproduce the throws of CALCITE-3929. */
+ public static class MyAggFunc extends SqlAggFunction {
Review comment:
@yanlin-Lynn
Thanks, `SqlUserDefinedAggFunction` has an AggregateFunction argument, it's
not convenient for reproduce this case.So it's better to extends SqlAggFunction
and define it as a user-defined function.
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