ShreelekhyaG commented on a change in pull request #4216:
URL: https://github.com/apache/carbondata/pull/4216#discussion_r709182359



##########
File path: 
integration/spark/src/main/scala/org/apache/spark/sql/execution/command/management/RefreshCarbonTableCommand.scala
##########
@@ -83,6 +84,23 @@ case class RefreshCarbonTableCommand(
       if (FileFactory.isFileExist(schemaFilePath)) {
         // read TableInfo
         val tableInfo = SchemaReader.getTableInfo(identifier)
+        val tableProperties = tableInfo.getFactTable.getTableProperties

Review comment:
       Verified for direct upgrade scenario and update document.

##########
File path: 
integration/spark/src/main/scala/org/apache/spark/sql/execution/command/management/RefreshCarbonTableCommand.scala
##########
@@ -83,6 +84,23 @@ case class RefreshCarbonTableCommand(
       if (FileFactory.isFileExist(schemaFilePath)) {
         // read TableInfo
         val tableInfo = SchemaReader.getTableInfo(identifier)
+        val tableProperties = tableInfo.getFactTable.getTableProperties
+        val indexName = 
tableProperties.get(CarbonCommonConstants.SPATIAL_INDEX)
+        if (indexName != null) {
+          val SPATIAL_INDEX_CLASS = s"${ CarbonCommonConstants.SPATIAL_INDEX 
}.$indexName.class"
+          val SPATIAL_INDEX_INSTANCE = s"${
+            CarbonCommonConstants.SPATIAL_INDEX
+          }.$indexName.instance"
+          // For spatial table, To make the instance compatible with previous 
versions,
+          // initialise and update the index instance in table properties.
+          tableProperties.remove(SPATIAL_INDEX_INSTANCE)
+          val spatialIndexClass: Class[_] = 
java.lang.Class.forName(tableProperties

Review comment:
       Done

##########
File path: 
integration/spark/src/main/scala/org/apache/spark/sql/execution/command/management/RefreshCarbonTableCommand.scala
##########
@@ -83,6 +84,23 @@ case class RefreshCarbonTableCommand(
       if (FileFactory.isFileExist(schemaFilePath)) {
         // read TableInfo
         val tableInfo = SchemaReader.getTableInfo(identifier)
+        val tableProperties = tableInfo.getFactTable.getTableProperties
+        val indexName = 
tableProperties.get(CarbonCommonConstants.SPATIAL_INDEX)
+        if (indexName != null) {
+          val SPATIAL_INDEX_CLASS = s"${ CarbonCommonConstants.SPATIAL_INDEX 
}.$indexName.class"

Review comment:
       Done




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