zlacker

it wont work with a timestamp because each write will have an affected row of 1 beacuse the writes happen at different times. setting a boolean is static

>>tylerg+(OP)
You can do something like UPDATE row SET timeout = NOW() WHERE NOW() - taskTimeout > row.timestamp. You're not stuck with comparing bools.

>>tylerg+(OP)
update tasks set taken_timestamp = now() where task_id = ? and taken_timestamp is null

>>tylerg+(OP)
update row set taken=true,taken_by=my_id,taken_at=now() where taken is false;