Fix | Disable unicode char/varchar mapping to nchar/nvarchar against Azure DW

Author: ulvii

src/main/java/com/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java

@@ -3573,6 +3573,6 @@ protected void setDestinationTableMetadata(SQLServerResultSet rs) {
     private boolean unicodeConversionRequired(int jdbcType, SSType ssType) {
         return ((java.sql.Types.CHAR == jdbcType || java.sql.Types.VARCHAR == jdbcType
                 || java.sql.Types.LONGNVARCHAR == jdbcType)
-                && (SSType.NCHAR == ssType || SSType.NVARCHAR == ssType || SSType.NVARCHARMAX == ssType));
+                && (SSType.NCHAR == ssType || SSType.NVARCHAR == ssType || SSType.NVARCHARMAX == ssType) && !connection.isAzureDW());
     }
 }

src/test/java/com/microsoft/sqlserver/jdbc/bulkCopy/BulkCopyColumnMappingTest.java

@@ -365,7 +365,7 @@ public void testInvalidCM() throws SQLException {
             }
         }
     }
-
+    @Tag(Constants.xAzureSQLDW)
     @Test
     @DisplayName("BulkCopy:test unicode char/varchar to nchar/nvarchar")
     public void testUnicodeCharToNchar() throws SQLException, ClassNotFoundException {