aokolnychyi commented on code in PR #9251:
URL: https://github.com/apache/iceberg/pull/9251#discussion_r1425368136


##########
core/src/main/java/org/apache/iceberg/DeleteFileIndex.java:
##########
@@ -474,68 +421,52 @@ private Collection<DeleteFile> loadDeleteFiles() {
     DeleteFileIndex build() {
       Iterable<DeleteFile> files = deleteFiles != null ? filterDeleteFiles() : 
loadDeleteFiles();
 
-      boolean useColumnStatsFiltering = false;
+      EqualityDeletes globalDeletes = new EqualityDeletes();
+      PartitionMap<EqualityDeletes> eqDeletesByPartition = 
PartitionMap.create(specsById);
+      PartitionMap<PositionDeletes> posDeletesByPartition = 
PartitionMap.create(specsById);
+      CharSequenceMap<PositionDeletes> posDeletesByPath = 
CharSequenceMap.create();

Review Comment:
   It would require a bit of extra space but it would not be possible to plan 
jobs at all otherwise if we have 1-1 mapping of data and deletes. I am going to 
add a benchmark. Without this PR, the planning did not complete in 5 minutes. 
With this PR, it took around 5 seconds.



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