#20 @sql-unique and @sql-index do not work

[Christian Schuhegger]

at the moment (castor-doclet-src-0.4.2) indices and
unique indices are not generated at all, because for a
given field the table information is not stored. i've
submitted a patch that solves this problem.

besides that i would like to remark, that in the
documentation it is written that unique indices are
generated by @sql-unique-index, but in fact they are
created by @sql-unique.