Andreas Joseph Krogh [EMAIL PROTECTED] writes:
AFAICS the information about the *total* number of rows is in the result
somehow. When I execute a limit 1 query with EXPLAIN ANALYZE, I se the
total number of columns in rows=200819, so the information is there.
That's only an estimate. Since
On Monday 05 November 2007 15:18:22 Tom Lane wrote:
Andreas Joseph Krogh [EMAIL PROTECTED] writes:
AFAICS the information about the *total* number of rows is in the
result somehow. When I execute a limit 1 query with EXPLAIN ANALYZE,
I se the total number of columns in rows=200819, so the
Andreas Joseph Krogh [EMAIL PROTECTED] writes:
On Monday 05 November 2007 15:18:22 Tom Lane wrote:
That's only an estimate. Since the query doesn't get executed to
completion thanks to the LIMIT, Postgres really has no idea whether
the estimate is accurate.
Ok. The query is ORDER-ed, but
Andreas Joseph Krogh [EMAIL PROTECTED] writes:
On Monday 05 November 2007 15:18:22 Tom Lane wrote:
That's only an estimate. Since the query doesn't get executed to
completion thanks to the LIMIT, Postgres really has no idea whether
the estimate is accurate.
Ok. The query is ORDER-ed, but
On Monday 05 November 2007 16:27:03 Gregory Stark wrote:
Andreas Joseph Krogh [EMAIL PROTECTED] writes:
On Monday 05 November 2007 15:18:22 Tom Lane wrote:
That's only an estimate. Since the query doesn't get executed to
completion thanks to the LIMIT, Postgres really has no idea whether
Andreas Joseph Krogh [EMAIL PROTECTED] writes:
That's what I'm doing now. I run the query with limit+1 as limit and if it
results in more than limit, I know there is more data and I run count(*) to
count them all. But count(*) cannot use indices in PG so it's limited in
speed anyway
This is a re-post as I didn't get any response last time
Hi.
AFAICS the information about the *total* number of rows is in the result
somehow. When I execute a limit 1 query with EXPLAIN ANALYZE, I se the
total number of columns in
Hi.
AFAICS the information about the *total* number of rows is in the result
somehow. When I execute a limit 1 query with EXPLAIN ANALYZE, I se the
total number of columns in rows=200819, so the information is there.
andreak=# EXPLAIN ANALYZE select p.id from onp_crm_person p order by
