[GitHub] [carbondata] Indhumathi27 commented on a change in pull request #4087: [CARBONDATA-4125] SI compatability issue fix

[GitBox <gi...@apache.org>]

Indhumathi27 commented on a change in pull request #4087:
URL: https://github.com/apache/carbondata/pull/4087#discussion_r576147074



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File path: integration/spark/src/main/scala/org/apache/spark/sql/secondaryindex/command/SICreationCommand.scala
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@@ -239,6 +248,24 @@ private[sql] case class CarbonCreateSecondaryIndexCommand(
         throw new ErrorMessage(
           s"Table [$tableName] under database [$databaseName] is already an index table")
       }
+      val absoluteTableIdentifier = AbsoluteTableIdentifier.
+        from(tablePath, databaseName, indexTableName)
+      val indexTablePath = CarbonTablePath
+        .getMetadataPath(absoluteTableIdentifier.getTablePath)
+      val mainTblLoadMetadataDetails: Array[LoadMetadataDetails] =
+        SegmentStatusManager.readLoadMetadata(carbonTable.getMetadataPath)
+      var siTblLoadMetadataDetails: Array[LoadMetadataDetails] =
+        SegmentStatusManager.readLoadMetadata(indexTablePath)
+      if (isRegisterIndex) {
+        // check if SI table has undergone any Update or delete operation, which can happen in
+        // case of compatibility scenario. IUD after Refresh SI and before register index
+        val updatedSegmentsCount = siTblLoadMetadataDetails.filter(loadMetaDetail =>
+          !loadMetaDetail.getUpdateStatusFileName.equals(""))
+        if (!updatedSegmentsCount.isEmpty) {
+          throw new ErrorMessage("Cannot Register Secondary index table " + indexTableName +
+                                 ", as it has undergone update or delete operation.")

Review comment:
       done




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