java - JPQL Query doesn't work -

hello wanna try to run query

update warmtimemonitoring wtm set wtm.warmtime = (extract(hour current_timestamp - wtm.entrydate)*60)+ extract(minute current_timestamp - wtm.entrydate ) wtm.leavingdate null 

when try query right on database works

update warmtime_monitoring w set w.warm_time = (extract(hour current_timestamp - w.entry_date)*60)+ extract(minute current_timestamp - w.entry_date) leaving_date null; 

if try jpql following error:

exception occurred while performing database query: illegalargumentexception-> exception occurred while creating query in entitymanager: exception description: syntax error parsing [update warmtimemonitoring wtm set wtm.warmtime = (extract(hour current_timestamp - wtm.entrydate)*60)+ extract(minute current_timestamp - wtm.entrydate ) wtm.leavingdate null ]. [68, 85] left expression not arithmetic expression. [131, 148] left expression not arithmetic expression.

can explain me why happens , how can fix it?

and yes checked warmtime entrydate , leavingdate callable.

as @neil stockon said, of functions not valid jpql operations, suggest, first go record , information needed make , update

select w.id, w.entry_date warmtime_monitoring w leaving_date null; 

once id of record , entry_date operations need date, conform new date , jpql update

update warmtime_monitoring w set w.warm_time = :time id = :id 

this inefficient if have large amount of data.