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I have a shapefile with two fields 'Name' and 'CountyFacilityID'. I would like to create an expression to select all features where Name exists in the CountyFacilityID column for any of the features.

I tried array_contains( "CountyFACILITYID" , "NAME" ) but it didn't work as it is not considering FacilityID as an array

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    Naive idea here: Shouldn't "CountyFACILITYID" IN "NAME" work?
    – Erik
    Aug 6, 2020 at 18:27

2 Answers 2

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You have to aggregate the values of the other column first. For example like this:

array_contains( array_agg( "CountyFACILITYID" ), "Name" )

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What about just

"Name" = "CountyFacilityID"
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    That will only check for the CountyFacilityID of that feature. I want to check for all features, and if Name exist for any of the feature as CountyFacilityID, I want it to be selected.
    – ar-siddiqui
    Aug 6, 2020 at 15:40

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