In response to Tyler Hildebrandt :
> We're using a function that when run as a select statement outside of the
> function takes roughly 1.5s to complete whereas running an identical
> query within a function is taking around 55s to complete.
>
> select * from fn_medirota_get_staff_leave_summary(6);
> Time: 57375.477 ms
I think, your problem is here:
SELECT INTO current_user * FROM
fn_medirota_validate_rota_master(in_currentuser);
The planner has no knowledge about how many rows this functions returns
if he don't know the actual parameter. Because of this, this query
enforce a seq-scan. Try to rewrite that to something like:
execute 'select * from fn_medirota_validate_rota_master(' ||
in_currentuser' || ')' into current_user
*untested*
HTH, Andreas
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Andreas Kretschmer
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