Hi,

Once a report page is rendered and returned all of report's datastores and variable will be cleared by PHP and web server. In case you want to clear a datastore's memory in the middle of a report rendering (in its view or after that) you could try the following command:

    //MyReport.view.php or some page include it
    $this->dataStore("myDatatstore)->data([]); // set its data to be an empty array

    $this->dataStore("myDatatstore)->meta([]); // set its meta to be an empty array

Let us know if we understand your question correctly. Thanks!