kadanis wrote:
>
> Just wondering if anyone has any suggestions on this.
>
> I'm using Cake for a current project and the project lead is insisting
> we use FORCE INDEX on the queries and table joins.
>
>
Recently I've play with it a little. My workaround is:
1. Create my own datasource - (in my case extending DboMysql)
data source has two tasks:
its overrides read method and checks if model has set useIndex field
if (!empty($model->useIndex)) {
$this->useIndex = $model->useIndex;
}
return parent::read($model, $queryData);
and it overrides renderStatement method and if $model->useIndex field was
set, adding its value after table alias in select statement.
if (strtolower($type) == 'select' && !empty($this->useIndex)) {
$res = "SELECT {$fields} FROM {$table} {$alias} {$this->useIndex}
{$joins}
{$conditions} {$group} {$order} {$limit}";
} else {
$res = parent::renderStatement($type, $data);
}
$this->useIndex = null;
return $res;
2. Setting up model field whitch contains sql part of use index, force index
or ignore index
eg in controller:
$this->Task->useIndex = 'IGNORE INDEX(ind_usr_id)';
$this->paginate = array(
'fields' => array('Task.id', 'Task.name','User.id', 'User.name'),
'order' => 'Task.id',
'limit' => 10
);
$this->paginate('Task');
To make it work, you should also set this datasource as datasource for your
model.
In fact, this is rather experimental and I didn't use it in production
environment yet :), but mayby it can help you.
--
Przemoo
--
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