Rename error codes

Author: Torch3333

core/src/main/java/com/scalar/db/common/CoreError.java

@@ -736,13 +736,13 @@ public enum CoreError implements ScalarDbError {
       "The BOOLEAN type is not supported for index columns in DynamoDB. Column: %s",
       "",
       ""),
-  DB2_INDEX_OR_KEY_ON_BLOB_COLUMN_NOT_SUPPORTED(
+  JDBC_DB2_INDEX_OR_KEY_ON_BLOB_COLUMN_NOT_SUPPORTED(
       Category.USER_ERROR,
       "0227",
       "With Db2, using a BLOB column as partition key, clustering key or secondary index is not supported.",
       "",
       ""),
-  DB2_CROSS_PARTITION_SCAN_ORDERING_ON_BLOB_COLUMN_NOT_SUPPORTED(
+  JDBC_DB2_CROSS_PARTITION_SCAN_ORDERING_ON_BLOB_COLUMN_NOT_SUPPORTED(
       Category.USER_ERROR,
       "0228",
       "With Db2, setting an ordering on a BLOB column when using a cross partition scan operation is not supported. Ordering: %s",

core/src/main/java/com/scalar/db/storage/jdbc/RdbEngineDb2.java

@@ -390,7 +390,7 @@ public String getDataTypeForKey(DataType dataType) {
         return "VARCHAR(" + keyColumnSize + ") NOT NULL";
       case BLOB:
         throw new UnsupportedOperationException(
-            CoreError.DB2_INDEX_OR_KEY_ON_BLOB_COLUMN_NOT_SUPPORTED.buildMessage());
+            CoreError.JDBC_DB2_INDEX_OR_KEY_ON_BLOB_COLUMN_NOT_SUPPORTED.buildMessage());
       default:
         return getDataTypeForEngine(dataType) + " NOT NULL";
     }
@@ -404,7 +404,7 @@ public String getDataTypeForSecondaryIndex(DataType dataType) {
         return "VARCHAR(" + keyColumnSize + ")";
       case BLOB:
         throw new UnsupportedOperationException(
-            CoreError.DB2_INDEX_OR_KEY_ON_BLOB_COLUMN_NOT_SUPPORTED.buildMessage());
+            CoreError.JDBC_DB2_INDEX_OR_KEY_ON_BLOB_COLUMN_NOT_SUPPORTED.buildMessage());
       default:
         return null;
     }
@@ -563,8 +563,8 @@ public void throwIfCrossPartitionScanOrderingOnBlobColumnNotSupported(
             .findFirst();
     if (orderingOnBlobColumn.isPresent()) {
       throw new UnsupportedOperationException(
-          CoreError.DB2_CROSS_PARTITION_SCAN_ORDERING_ON_BLOB_COLUMN_NOT_SUPPORTED.buildMessage(
-              orderingOnBlobColumn.get()));
+          CoreError.JDBC_DB2_CROSS_PARTITION_SCAN_ORDERING_ON_BLOB_COLUMN_NOT_SUPPORTED
+              .buildMessage(orderingOnBlobColumn.get()));
     }
   }
 }