private List<PostgreSQLColumnInfo> buildAddColumns() {
        List<PostgreSQLColumnInfo> addColums = Lists.newArrayList(
                new PostgreSQLColumnInfo("test1", "int", "test1"),
                new PostgreSQLColumnInfo("test2", "varchar(30)", "test2"),
                new PostgreSQLColumnInfo("Test1", "varchar(50)", "Test1"));
        return addColums;
    }
Build add PostgreSQL column info.

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