[wp-trac] [WordPress Trac] #10886: WordPress should not unnecessarily query posts at page load

[WordPress Trac]

#10886: WordPress should not unnecessarily query posts at page load
----------------------------+--------------------------
 Reporter:  junsuijin       |       Owner:  junsuijin
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  4.4
Component:  Bootstrap/Load  |     Version:  2.8.4
 Severity:  normal          |  Resolution:
 Keywords:  has-patch       |     Focuses:  performance
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Comment (by wonderboymusic):

 In [attachment:10886.7.diff 10886.7.diff]:
 * `$wp->parse_request()` needs to return a `bool`
 * If it returns `false`, send headers, but don't do any querying, 404
 handling, or setup of globals


 If you use these filters:
 {{{
 add_filter( 'template_include', '__return_false' );
 add_filter( 'do_parse_request', '__return_false' );
 }}}

 The whole request will only produce 3 db queries (no external cache):
 {{{
 SELECT option_value FROM wp_options WHERE option_name = 'WPLANG' LIMIT 1
 SELECT * FROM wp_users WHERE user_login = 'admin'
 SELECT user_id, meta_key, meta_value FROM wp_usermeta WHERE user_id IN (1)
 ORDER BY umeta_id ASC
 }}}

 `get_option( 'locale' )` gets called even if `WPLANG` is defined in `wp-
 config.php` or elsewhere.

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Ticket URL: <https://core.trac.wordpress.org/ticket/10886#comment:28>
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