tsreaper commented on a change in pull request #17605:
URL: https://github.com/apache/flink/pull/17605#discussion_r741595404
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File path:
flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/operators/rank/UpdatableTopNFunction.java
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@@ -312,6 +355,46 @@ private void processElementWithRowNumber(RowData inputRow,
Collector<RowData> ou
"Failed to find the sortKey, rowkey in the buffer. This should
never happen");
}
+ private void emitRecordsWithRowNumberIgnoreStateError(
+ RowData newSortKey,
+ RowData newRow,
+ int newRank,
+ RowData oldSortKey,
+ RankRow oldRow,
+ int oldRank,
+ Collector<RowData> out) {
+ Iterator<Map.Entry<RowData, Collection<RowData>>> iterator =
buffer.entrySet().iterator();
+ int currentRank = 0;
+ RowData currentRow = null;
+ RowData prevRow = null;
+
+ while (iterator.hasNext() && currentRank <= newRank) {
+ Map.Entry<RowData, Collection<RowData>> entry = iterator.next();
+ RowData curSortKey = entry.getKey();
+ Collection<RowData> rowKeys = entry.getValue();
+ Iterator<RowData> rowKeyIter = rowKeys.iterator();
+ while (rowKeyIter.hasNext()) {
+ RowData rowKey = rowKeyIter.next();
+ currentRank += 1;
+ currentRow = rowKeyMap.get(rowKey).row;
+ if (oldRank <= currentRank) {
+ if (currentRank == oldRank) {
+ checkArgument(0 ==
sortKeyComparator.compare(curSortKey, oldSortKey));
Review comment:
Why is this true? It might be that the `oldSortKey` is unique and after
the change it does not exist anymore.
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