Steve Clark <[EMAIL PROTECTED]> writes:
> Tom Lane wrote:
>> Also, whatever is the ORDER BY for?
> without the order by it wants to do a seq scan of t_unit_event_log.
> see below:
> explain select count(*) from t_event_ack_log where event_log_no not
> in (select event_log_no from t_unit_event_l
Tom Lane wrote:
Steve Clark <[EMAIL PROTECTED]> writes:
Tom Lane wrote:
Also, whatever is the ORDER BY for?
without the order by it wants to do a seq scan of t_unit_event_log.
see below:
explain select count(*) from t_event_ack_log where event_log_no not
in (select event_log_no from t_u
Daniel Verite wrote:
Steve Clark wrote:
any way i have 2 table - A and B.
each table has a key field and if a row is in B it should have a
corresponding row in A - but theres
the problem it doesn't for all the rows in B.
So I want to do something like
delete from B where key not in
Steve Clark wrote:
any way i have 2 table - A and B.
each table has a key field and if a row is in B it should have a
corresponding row in A - but theres
the problem it doesn't for all the rows in B.
So I want to do something like
delete from B where key not in (select key from A orde
Tom Lane wrote:
Steve Clark <[EMAIL PROTECTED]> writes:
explain shows:
Aggregate (cost=4712921585.30..4712921585.31 rows=1 width=0)
-> Seq Scan on t_event_ack_log a (cost=103170.29..4712920878.60
rows=282677 width=0)
Filter: (NOT (subplan))
SubPlan
->
Steve Clark <[EMAIL PROTECTED]> writes:
> explain shows:
> Aggregate (cost=4712921585.30..4712921585.31 rows=1 width=0)
> -> Seq Scan on t_event_ack_log a (cost=103170.29..4712920878.60
> rows=282677 width=0)
> Filter: (NOT (subplan))
> SubPlan
> -> Mater
Hello List,
this is a noobie question:
I have had to take over an existing system - it was supposed to have
some contraints that
prevented dangling references - but...
any way i have 2 table - A and B.
each table has a key field and if a row is in B it should have a
corresponding row in A -
