Wordpress orderby date not working

Somehow this doesn't wo开发者_如何学Crk on my server

$query = new WP_Query( array ( 'orderby' => 'date', 'order' => 'DESC' ) );

It works in the local development environment but not live...

How could this be, posts are always sorted oldest to newest instead

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Try to replace date with post_date.

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Try to Confirm the name of db column is date, or something other like post_date.