Hello,
I have one query in my postgresql 9.2.3 that took 137 ms to me executed
and looking a way
what I can do to optimize it. I have one table generated numbers from 1
to 1 000 000 and
I need to get first free id, meanwhile id's when is taken can be free
(deleted data and id
is free for next job). Table is simple:
id serial,
jobid text,
valids int default 0
(Yes, I have index).
my query is: SELECT jobid FROM mytable WHERE valids = 0 ORDER BY id ASC
LIMIT 1
I need the first id only.
My question is: Is there a way how I can avoid using ORDER BY to
receive the first
free id from mytable ?
Cheers,
Condor
