matt, Sunday, May 19, 2002, 6:14:17 PM, you wrote: m> Description:
m> mysql> describe DLSummary; m> +------------+------------------+------+-----+---------+-------+ m> | Field | Type | Null | Key | Default | Extra | m> +------------+------------------+------+-----+---------+-------+ m> | DownloadID | int(10) unsigned | YES | MUL | NULL | | m> | Year | int(10) unsigned | YES | MUL | NULL | | m> | YDay | int(10) unsigned | YES | | NULL | | m> | Count | int(10) unsigned | YES | | NULL | | m> +------------+------------------+------+-----+---------+-------+ m> 4 rows in set (0.00 sec) m> mysql> show keys from DLSummary; m> +-----------+------------+------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+ m> | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type m> | Comment | m> +-----------+------------+------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+ m> | DLSummary | 1 | Date | 1 | Year | A | 1 | NULL | NULL | YES | BTREE m> | | m> | DLSummary | 1 | Date | 2 | YDay | A | 377 | NULL | NULL | YES | BTREE m> | | m> | DLSummary | 1 | DownloadID | 1 | DownloadID | A | 15378 | NULL | NULL | YES | BTREE m> | | m> +-----------+------------+------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+ m> 3 rows in set (0.01 sec) m> **** BUG **** m> mysql> select Year,YDay,sum(Count) from DLSummary group by Year,YDay; m> ERROR 1062: Duplicate entry '2001-125' for key 1 m> **** BUG **** m> mysql> select Year,YDay,sum(Count) from DLSummary group by concat(Year,YDay); m> +------+------+------------+ m> | Year | YDay | sum(Count) | m> +------+------+------------+ m> | 2001 | 124 | 2140 | m> | 2001 | 125 | 10302 | m> ..... m> This seems rather odd. GROUP BY Year,YDay is documented to be topologically m> equivalent to GROUP BY CONCAT(Year,YDay) (well, more or less) but has m> functional difference. m> Bug tested in 4.0.2 @ BK 1.1272 (May 17th) and also on 4.0.2 as of around m> March 2nd, so it's nothing recent. Thank you for your bug report! -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Victoria Reznichenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net <___/ www.mysql.com --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php