stevenzwu commented on code in PR #9308:
URL: https://github.com/apache/iceberg/pull/9308#discussion_r1431716141


##########
flink/v1.18/flink/src/main/java/org/apache/iceberg/flink/source/reader/IcebergSourceSplitReader.java:
##########
@@ -80,6 +88,35 @@ public RecordsWithSplitIds<RecordAndPosition<T>> fetch() 
throws IOException {
     }
 
     if (currentReader.hasNext()) {
+      if (pausedSplits.contains(currentSplitId)) {

Review Comment:
   not sure I got the performance difference. we are talking about two options
   
   option 1 (current form)
   ```
   if (condition) {
       ...
       while (condition) {
           ...
       }
   }
   ```
   
   option 2
   ```
   while (condition) {
       ...
   }
   ```



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