Gregory Stark wrote:
Christian Schrder [EMAIL PROTECTED] writes:
...
- Seq Scan on table2 (cost=0.00..186.64 rows=2 width=4) (actual time=0.052..2.259 rows=42 loops=1)
Filter: (c ~~ '1131%'::text)
...
- Seq Scan on table2 (cost=0.00..200.89 rows=14
Christian Schröder [EMAIL PROTECTED] writes:
...
- Seq Scan on table2 (cost=0.00..186.64 rows=2 width=4) (actual
time=0.052..2.259 rows=42 loops=1)
Filter: (c ~~ '1131%'::text)
...
- Seq Scan on table2 (cost=0.00..200.89 rows=14 width=4) (actual
time=0.084..3.419 rows=42 loops=1)
It means that measuring alters the reality.
Heisenberg would agree!
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TIP 6: explain analyze is your friend
Carlo Stonebanks wrote:
Actually it's quite possible that
that extra overhead in nested loop is largely gettimeofday() calls for the
explain analyze. Does the query take less time run without explain analyze
than it does run with it?
Do you mean that an EXPLAIN ANALYZE that runs longer than
Hi list,
if you please have a look at the following query:
SELECT DISTINCT a FROM table1
INNER JOIN table2 USING (b)
INNER JOIN view1 USING (a)
WHERE c like '1131%'
AND d IS NOT NULL
AND e IS NOT NULL;
Unfortunately, I have not been able to construct a suitable test case,
so I had to take the
Actually it's quite possible that
that extra overhead in nested loop is largely gettimeofday() calls for the
explain analyze. Does the query take less time run without explain analyze
than it does run with it?
Do you mean that an EXPLAIN ANALYZE that runs longer than the actual query
is a
On 9/7/07, Carlo Stonebanks [EMAIL PROTECTED] wrote:
It means that measuring alters the reality.
Heisenberg would agree!
I'm not entirely sure what Schrödinger would think about it.
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TIP 6: explain analyze is your friend
On 9/8/07, Scott Marlowe [EMAIL PROTECTED] wrote:
Heisenberg would agree!
I'm not entirely sure what Schrödinger would think about it.
He'd kill Heisenberg's cat?
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TIP 4: Have you searched our list archives?
I'm not entirely sure what Schrödinger would think about it.
I know what the cat thinks:
What do you mean 'no observer'? What the #*! am I??? LET ME OUT!
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TIP 2: Don't 'kill -9' the postmaster
