kabhishek4 commented on code in PR #1586:
URL: https://github.com/apache/phoenix/pull/1586#discussion_r1163903873


##########
phoenix-core/src/main/java/org/apache/phoenix/util/UpgradeUtil.java:
##########
@@ -2563,13 +2618,17 @@ private static void 
updateIndexesSequenceIfPresent(PhoenixConnection connection,
         String newSchemaName = 
MetaDataUtil.getViewIndexSequenceSchemaName(physicalName, true);
         String newSequenceName = 
MetaDataUtil.getViewIndexSequenceName(physicalName, tenantId, true);
         // create new entry with new schema format
-        String upsert = "UPSERT INTO " + 
PhoenixDatabaseMetaData.SYSTEM_SEQUENCE + " SELECT NULL,\'" + newSchemaName +
-            "\',\'" + newSequenceName
-                + "\'," + START_WITH + "," + CURRENT_VALUE + "," + 
INCREMENT_BY + "," + CACHE_SIZE + "," + MIN_VALUE
-                + "," + MAX_VALUE + "," + CYCLE_FLAG + "," + 
LIMIT_REACHED_FLAG + " FROM "
-                + PhoenixDatabaseMetaData.SYSTEM_SEQUENCE + " WHERE " + 
PhoenixDatabaseMetaData.TENANT_ID
-                + " IS NULL AND " + PhoenixDatabaseMetaData.SEQUENCE_SCHEMA + 
" = '" + oldSchemaName + "'";
-        connection.createStatement().executeUpdate(upsert);
+        String upsert = "UPSERT INTO " + 
PhoenixDatabaseMetaData.SYSTEM_SEQUENCE
+            + " SELECT NULL,\'" + newSchemaName + "\',\'" + newSequenceName

Review Comment:
   In this statement, a 'where' predicate, SEQUENCE_SCHEMA has already been 
parameterised. Can you please suggest which other predicate you are referring 
to?
   



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