带有ORDER BY的MYSQL查询在CakePHP中运行非常慢

Question

When I use paginate function in Cakephp 2.0 with $options['order'] = array('Model.name' => 'DESC'); set query takes 7000ms compared to 5ms without order set up, limit is set to only 10 records. I use WAMP server.

Any idea why does this query take so long? The only difference is adding order rule. "Ordered by" field is indexed.

Solved it:

The problem was that I didn't set all related models id fields (model_id) as indexes, after doing that the query runs as it should.

Answer 1

You can try putting order in your Model.

var $order = "field";
var $order = "Model.field";
var $order = "Model.field asc";
var $order = "Model.field ASC";
var $order = "Model.field DESC";
var $order = array("Model.field" => "asc", "Model.field2" => "DESC");

Delete-orderBy in your query and put one of these options in your Model and tell us is it faster.

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