[GitHub] [carbondata] akashrn5 commented on a change in pull request #4060: [CARBONDATA-4093] Added logs for MV and method to verify if mv is in Sync during query

[GitBox]

akashrn5 commented on a change in pull request #4060:
URL: https://github.com/apache/carbondata/pull/4060#discussion_r546518847



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File path: core/src/main/java/org/apache/carbondata/core/view/MVProvider.java
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@@ -364,18 +366,37 @@ private static boolean isViewCanBeEnabled(MVSchema schema)
     }
     List<RelationIdentifier> relatedTables = schema.getRelatedTables();
     for (RelationIdentifier relatedTable : relatedTables) {
+      SegmentStatusManager.ValidAndInvalidSegmentsInfo 
validAndInvalidSegmentsInfo =
+          SegmentStatusManager.getValidAndInvalidSegmentsInfo(relatedTable);
       List<String> relatedTableSegmentList =
-          SegmentStatusManager.getValidSegmentList(relatedTable);
+          
SegmentStatusManager.getValidSegmentList(validAndInvalidSegmentsInfo);
       if (!relatedTableSegmentList.isEmpty()) {
         if (viewSegmentMap.isEmpty()) {
           isViewCanBeEnabled = false;
         } else {
-          isViewCanBeEnabled = viewSegmentMap.get(
-              relatedTable.getDatabaseName() + CarbonCommonConstants.POINT +
-                  
relatedTable.getTableName()).containsAll(relatedTableSegmentList);
+          String tableUniqueName =
+              relatedTable.getDatabaseName() + CarbonCommonConstants.POINT + 
relatedTable
+                  .getTableName();
+          isViewCanBeEnabled =
+              
viewSegmentMap.get(tableUniqueName).containsAll(relatedTableSegmentList);
+          if (!isViewCanBeEnabled) {
+            // in case if main table is compacted and mv table mapping is not 
updated,
+            // check from merged Load Mapping
+            Map<String, List<String>> mergedLoadMapping =
+                validAndInvalidSegmentsInfo.getMergedLoadMapping();
+            List<String> mergedLoadsList = new ArrayList<>();

Review comment:
       dont create this list, just use stream and map function and do .tolist




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