ISQL lists SHOW SECURITY CLASses, but doesn't actually support it

[mrotteveel]

The output of SHOW; lists the option SECURITY CLASses, but this option is actually not supported, because the parser only uses the second word when parsing SHOW SECURITY CLASSES employee. The parser only considers SECURITY, so it never matches. Instead only the equivalent option SECCLAsses works.

Given this - as far as I know - never worked, the option SECURITY CLASses should be removed as it has a working alternative (SECCLASses).

[mrotteveel]

Expected behaviour: SHOW; should not list SECURITY CLASses,