JingsongLi commented on code in PR #8447:
URL: https://github.com/apache/paimon/pull/8447#discussion_r3520066489


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paimon-core/src/main/java/org/apache/paimon/table/source/snapshot/SnapshotReaderImpl.java:
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@@ -237,7 +237,7 @@ public SnapshotReader withFilter(Predicate predicate) {
                 splitPartitionPredicatesAndDataPredicates(
                         predicate, tableSchema.logicalRowType(), 
tableSchema.partitionKeys());
         if (pair.getLeft().isPresent()) {
-            scan.withPartitionFilter(pair.getLeft().get());
+            scan.withPartitionFilterAnd(pair.getLeft().get());

Review Comment:
   Do we still need to introduce  here? Since auth-derived partition predicates 
are now kept in a separate  slot and combined with the normal  only when 
computing the effective manifest filter, this PR could keep the existing  
behavior for normal query filters. The repeated  partition-merge semantics 
feels like a separate behavior change that can be discussed independently if 
needed.



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