lokeshj1703 commented on code in PR #19717:
URL: https://github.com/apache/hudi/pull/19717#discussion_r3872195582


##########
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/metadata/HoodieBackedTableMetadataWriter.java:
##########
@@ -435,8 +453,16 @@ private void initializeMetadataPartition(
       Indexer indexer,
       String dataTableInstantTime,
       Map<String, List<FileInfo>> partitionToAllFilesMap,
-      Lazy<List<FileSliceAndPartition>> lazyMergedFileSlices) throws 
IOException {
-    String instantTimeForPartition = 
generateUniqueInstantTime(dataTableInstantTime);
+      Lazy<List<FileSliceAndPartition>> lazyMergedFileSlices,
+      Option<String> requestedIndexPartition) throws IOException {

Review Comment:
   Rename to requestedIndexPartitionOpt



##########
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/metadata/HoodieBackedTableMetadataWriter.java:
##########
@@ -830,15 +875,25 @@ public void buildMetadataPartitions(HoodieEngineContext 
engineContext, List<Hood
       if (!enabledIndexerMap.containsKey(partitionType)) {
         throw new HoodieIndexException(String.format("Indexing for metadata 
partition: %s is not enabled", partitionType));
       }
-      partitionTypes.add(partitionType);
-      partitionPaths.add(relativePartitionPath);
+      if (partitionType == SECONDARY_INDEX || partitionType == 
EXPRESSION_INDEX) {
+        String previous = requestedPartitionPaths.put(partitionType, 
relativePartitionPath);

Review Comment:
   This suggests we only support one partition per partition type?



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