lsyldliu commented on code in PR #24600:
URL: https://github.com/apache/flink/pull/24600#discussion_r1581993829


##########
flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/utils/DynamicPartitionPruningUtils.java:
##########
@@ -236,6 +238,9 @@ private void setTables(ContextResolvedTable catalogTable) {
                 tables.add(catalogTable);
             } else {
                 for (ContextResolvedTable thisTable : new ArrayList<>(tables)) 
{
+                    if (tables.contains(catalogTable)) {

Review Comment:
   I think we can use a boolean flag to check here, then we don't need to call 
`contains` method every time, it is O(N) time complexity.
   
   ```
                   boolean hasAdded = false;
                   for (ContextResolvedTable thisTable : new 
ArrayList<>(tables)) {
                       if (hasAdded) {
                           break;
                       }
                       if 
(!thisTable.getIdentifier().equals(catalogTable.getIdentifier())) {
                           tables.add(catalogTable);
                           hasAdded = true;
                       }
                   }
   ```



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