W dniu 22 lipca 2010 21:34 użytkownik Szymon Guz <mabewlun@gmail.com> napisał:
> maybe the query waits on a lock or maybe the returned rows are very big.
So shouldn't EXPLAIN ANALYZE be also affected by waiting for lock?
The row has width = 313, so it's not big.
I've reduced it to witdh = 12 (only one column, int4 type), and get
EXPLAIN ANALYZE:
Total runtime: 14.788 ms
And only SELECT returns:
Time: 456,528 ms
Or maybe "Total runtime" it's not what I thought it is, and I should
look at psql \timing result, which form EXPLAIN ANALYZE is nearly the
same like for SELECT:
Time: 402,675 ms
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Piotr Gasidło