topic [tos4] taggregaterow : function list_object : incompatible input and/or output types ? in Talend Studio

[tos4] taggregaterow : function list_object : incompatible input and/or output types ?

Anonymous — Mon, 03 Feb 2020 07:43:31 GMT

Hi all

I use a aggregaterow with lis(object) as function for all my attributs

But I get : Warning:the operation 'list_object' for the output column 'columnname' can't be processed because of incompatible input and/or output types

My input and ouput use the same referentiel which is composed by only string column

What's the reason of this error ?

My input

A;toto;test

B;titi;

A;;test2

B;ok;yes

My expected ouput

A;toto;test test2

B;titi ok; yes

Thank you

Re: [tos4] taggregaterow : function list_object : incompatible input and/or output types ?

Anonymous — Mon, 03 Feb 2020 08:12:05 GMT

I have to use List and not list(object). When I have 2 values, it will be spearated by a ,

Sorry for my post

Re: [tos4] taggregaterow : function list_object : incompatible input and/or output types ?

Prakhar1 — Mon, 03 Feb 2020 09:12:06 GMT

What is your exact requirement, because the output you want to achieve can also be done by tdenormalize.