Took a while to figure this out so figured I’d better put it here for safe keeping…
<quer:projection alias="SSN2" xmlns:quer="http://www.taleo.com/ws/integration/query"> <quer:replace> <quer:replace> <quer:field path="Title"/> <quer:string>,</quer:string> <quer:string/> </quer:replace> <quer:string>|</quer:string> <quer:string/> </quer:replace> </quer:projection>