def execute(self, db, rows, bindings):
        assert rows and len(rows) > 0, "must have at least one row"
        if self.cols:
            sql = self.sql
        else:
            sql = self.sql % (",".join(("?",) + len(rows[0])))
        db.raw(sql, rows, bindings)
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/dbexts.py/executor.execute/operator `*` -> `+`