(Original issue 1359 created by None on 2017-06-26T16:12:03.533437+00:00)

It appears that the mysql lexer doesn't include support for variables in SQL / MySQL. The '@' prefix is highlighted as an operator, rather than as part of the name.

Example: http://pygments.org/demo/1808073/

Doc: https://dev.mysql.com/doc/refman/5.7/en/user-variables.html