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i have two readers( Old & New) with different attributes , now i need to compare the old one with new one & check for the  Added New Features , Modify Changed features & Retain old features . the change dector wil not work as there are no same features. So need a suggestion   
Hi,

 

 

on what basis do you want to make the comparison between the two datasets? Attributes, matching geometries or both?

 

 

Your two datasets will have to have something in common for the ChangeDetector to make any sense.

 

 

David
Hi David,

 

 

Thanks for ur reply , i need to match Attributes in both readers i have only one common field Source_ID  with that i have used feature merger as well as spatial filter but i was unable to get the result, for eg i have around 30000 data in old reader & 17000 in new so i need to figure out the Added New Features , Modify Changed features & Retain old features .

 

 

thanks

 

Nish
Hi Nish,

 

 

have you tried to use the ChangeDetector like this?

 

 

 

 

David
Also, take a look at the UpdateDetector in the FME Store.

 

 

David

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