private final List<SQLServerColumnInfo> buildAddColumns() {
        List<SQLServerColumnInfo> addCloums = Lists.newArrayList(
                new SQLServerColumnInfo("test1", "varchar(40)", "test1"),
                new SQLServerColumnInfo("test2", "varchar(40)", "test2"));
        return addCloums;
    }
Build add SQLServer column info.

@return {@link List}
inlong-manager/manager-service/src/test/java/org/apache/inlong/manager/service/sink/SQLServerSinkServiceTest.java