Hello Developers, MonetDB server crashes when trying to execute timestamp_to_str function with incorrect format string. SQL: SELECT timestamp_to_str(current_timestamp, '%Q'); I send bug report, https://www.monetdb.org/bugzilla/show_bug.cgi?id=3816 But, also I need QUARTER extraction from date values by SQL server, like "extract(quarter from date '2015-10-01')" = 4 Now, I am using this "((extract(month from {0}) - 1) / 3 + 1)" -- Best regards, Sherzod mailto:shmutalov@gmail.com