On 2013-05-02 10:08, Tom Lane wrote:
Larry Rosenman <ler@xxxxxxxxxx> writes:
Question: Do all these need to have a bare index just on the
account_id
column, or is a multicolumn index with account_id first
sufficient for the check to be reasonably quick?
I would think that such an index would be sufficient, but you could
check for yourself by doing something like
explain select 1 from <table> where account_id = <something>
and verifying that you get an indexscan not a seqscan, for each
dependent table.
regards, tom lane
Thanks, Tom. I found 12 tables with Sequential scans.
We'll fix that.
Appreciate the help.
--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 214-642-9640 (c) E-Mail: ler@xxxxxxxxxx
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
--
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general
