Question

I have a query that works on Postgresql 7.4 but not on Postgresql 8.3 with same database.

Query:

SELECT * FROM login_session WHERE (now()-modified) > timeout; 

Gets the following error:

ERROR:  operator does not exist: interval > integer LINE 1: ...ELECT * FROM login_session WHERE (now()-modified) > timeout ...                                                              ^ HINT:  No operator matches the given name and argument type(s). You might need to add explicit type casts. 

Column modified is a timestamp and timeout is an integer.

Is there some settings I need to change on server?

I’m installing an application for a client on new server (ubuntu) so I can’t change queries in the application.

Answer 1

create or replace function int2interval (x integer) returns interval as $$ select $1*'1 sec'::interval $$ language sql; create cast (integer as interval) with function int2interval (integer) as implicit; 

ought to do it.