How to create a reject flow from tmap

Serphentelm — Wed, 14 Jun 2023 07:23:31 GMT

Hi, newbie here.

I was doing a job that joins 3 postgres tables and produce an output as follows:

quite a simple job.

The join is as follows:

select tverdet.*, ana.pkid as pkid_anag

from tmp_ici_ver_spontanei_det tverdet

join an1_trasco tan1 on tverdet.codice_trasco_an1 = tan1.codice

join an1_anagrafe_unica ana on tan1.id_anag_unica = ana.pkid

And here's my problem: there are some records in my

tmp_ici_ver_spontanei_det that haven't a match in the an1_trasco, so if I have 10 rows in input from the join, I will have, let's say, 8 rows in the output.

Is there a way to filter this information generating so 2 output files?

Sql like is quite simple: I will add a statement like "and not exists(select * from an1_trasco tan1 where tan1.codice = tverdet.codice_trasco_an1). But this will imply modifying the current job and passing a sql query directly in the input, and so having 2 input; one that consider the join and one that take the excluded rows.

Sorry for the bad english

Re: How to create a reject flow from tmap

Anonymous — Wed, 14 Jun 2023 07:43:31 GMT

See below, do an inner join on tMap, set the 'Catch lookup inner join reject' option as true to output the rejected rows in another output table.

Let me know if this is what you expected?

Regards

Shong

Re: How to create a reject flow from tmap

Serphentelm — Wed, 14 Jun 2023 08:23:00 GMT

Thanks Shong, that's exactly what I was looking for.

Talend has so many component to discover that's quite overwelming!

Thnaks again

topic Re: How to create a reject flow from tmap in Talend Studio

How to create a reject flow from tmap

Re: How to create a reject flow from tmap

Re: How to create a reject flow from tmap