What does group records do when exporting?

By Jorrit Bakker admin, Created 13-APR-2017, last editted 28-APR-2017

When creating an export-definition I can choose to "group records". What does this mean? Does anyone have an example use for this?

Edit:

I've tried the option on a has and belongs to many relation and this are the results:


          
          When creating an export-definition I can choose to "group records". What does this mean? Does anyone have an example use for this?

Edit:
I've tried the option on a has and belongs to many relation and this are the results:

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