Extension:Math/math table

mysql> describe math;
+----------------------------+---------------+------+-----+---------+-------+
| Field                      | Type          | Null | Key | Default | Extra |
+----------------------------+---------------+------+-----+---------+-------+
| math_inputhash             | varbinary(16) | NO   | PRI | NULL    |       |
| math_outputhash            | varbinary(16) | NO   |     | NULL    |       |
| math_html_conservativeness | tinyint(4)    | NO   |     | NULL    |       |
| math_html                  | blob          | YES  |     | NULL    |       |
| math_mathml                | blob          | YES  |     | NULL    |       |
+----------------------------+---------------+------+-----+---------+-------+