On Thu, 27 Sep 2007, Henrik Krohns wrote:

> mysql> SELECT count(*) FROM bayes_token WHERE id = '1' AND (1190870335 - 
> atime) > 345600;
> +----------+
> | count(*) |
> +----------+
> |  1710591 |
> +----------+
> 1 row in set (5.69 sec)
> 
> mysql> SELECT count(*) FROM bayes_token WHERE id = '1' AND atime < 1190870335 
> - 345600;
> +----------+
> | count(*) |
> +----------+
> |  1710582 |
> +----------+
> 1 row in set (5.72 sec)

>From those performance numbers it looks like there is not an index on 
the atime column...

--
 John Hardin KA7OHZ                    http://www.impsec.org/~jhardin/
 [EMAIL PROTECTED]    FALaholic #11174     pgpk -a [EMAIL PROTECTED]
 key: 0xB8732E79 -- 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
-----------------------------------------------------------------------
  Pelley: Will you pledge not to test a nuclear weapon?
  Ahmadeinejad: CIA! Secret prison in Europe! Abu Ghraib!
                   -- Mahmoud Ahmadeinejad clumsily dodges a question
                                    (60 minutes interview, 9/20/2007)
-----------------------------------------------------------------------
 241 days until the Mars Phoenix lander arrives at Mars

Reply via email to