group_by_expr? #24
Description
I found a need for a group_by_expr because backticking of the column names was getting in the way. I wanted to do something like:
->group_by_expr("FROM_UNIXTIME(`time`, '%Y-%m')")
A super simple patch. Not sure whether it would be of interest to you:
/**
* Add an unquoted expression to the list of columns to GROUP BY
*/
public function group_by_expr($expr) {
$this->_group_by[] = $expr;
return $this;
}
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