In this scenario, a flow generated by tFixedFlowInput
is combined with a flow from the Mysql database. The source flow contains id and age fields while
the Mysql table contains id and name. We want to retrieve the age data of the source flow and combine it with the id and name records from
the Mysql table based on id matching. One thing that
is worth noting is that the input schema is different from the output one at tMysqlRow in the Job.