Set condition for aggregate functions
public mysql_xdevapi\CollectionFind mysql_xdevapi\CollectionFind::having(string sort_expr);
This function can be used after the 'field' operation in order to make a selection on the documents to extract.
This must be a valid SQL expression, the use of aggreate functions is allowed
CollectionFind object that can be used for further processing
<?php //Assuming $coll is a valid Collection object //Find all the documents for which the 'age' is greather than 40, //Only the columns 'name' and 'age' are returned in the Result object $res = $coll->find()->fields(['name','age'])->having('age > 40')->execute(); ?>