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Anonymous
Not applicable

tMap: using List as Column Type

Hello, 

 

In a tMap component, I want to add a column to the output containing an array of pre-defined strings. So I add a column, set the Type to List, and then add comma-separated strings in the expression editor. I've tried this in various ways, but continue to get errors. And I can't seem to find info about this from searching.

 

Can someone please tell me how to create the effect of an array as a column in tMap?

 

Thank you, 

Dave

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1 Solution

Accepted Solutions
Anonymous
Not applicable
Author

Thank you for your response. 

What I really want/need is a JSON array.

I solved my problem by using tWriteJSONField:

https://help.talend.com/reader/Btf8zDsnT4ikhQgFW1plpQ/68ie9Fe1gNc_JNy~7zjIbg

 

along with this info on how to configure a JSON tree, with info on configuring for an array

https://help.talend.com/reader/LNO9Tqm8svZQklRyXL8OYw/oriVV6vn5bDr9YFigtRMkg

 

Thanks again for your response

View solution in original post

2 Replies
fdenis
Master
Master

list type is String type with a predefined list of content.
use String with a separator not list .
regards
Anonymous
Not applicable
Author

Thank you for your response. 

What I really want/need is a JSON array.

I solved my problem by using tWriteJSONField:

https://help.talend.com/reader/Btf8zDsnT4ikhQgFW1plpQ/68ie9Fe1gNc_JNy~7zjIbg

 

along with this info on how to configure a JSON tree, with info on configuring for an array

https://help.talend.com/reader/LNO9Tqm8svZQklRyXL8OYw/oriVV6vn5bDr9YFigtRMkg

 

Thanks again for your response