swuferhong commented on code in PR #23414:
URL: https://github.com/apache/flink/pull/23414#discussion_r1325831177
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flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/factories/TestValuesTableFactory.java:
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@@ -1244,26 +1244,34 @@ public void applyPartitions(List<Map<String, String>>
remainingPartitions) {
} else {
// we will read data from Collections.emptyList() if
allPartitions is empty.
// therefore, we should clear all data manually.
- remainingPartitions = (List<Map<String, String>>)
Collections.emptyMap();
+ remainingPartitions = createEmptyRemainingPartitions();
this.data.put(Collections.emptyMap(),
Collections.emptyList());
}
} else {
this.allPartitions = remainingPartitions;
if (remainingPartitions.isEmpty()) {
- remainingPartitions = (List<Map<String, String>>)
Collections.emptyMap();
+ remainingPartitions = createEmptyRemainingPartitions();
}
}
// only keep the data in the remaining partitions
this.data = pruneDataByRemainingPartitions(remainingPartitions,
this.data);
}
+ private List<Map<String, String>> createEmptyRemainingPartitions() {
Review Comment:
> What about using `Collections.singletonList(Collections.emptyMap())`?
Done!
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