Dear Dragonchild,

An alternative subject to your design constraints (no expanding) is to move the conflict from reduce-reduce to shift-reduce and solve it using priorities:

%start column_ident

%left DUMMY
%right '.'

%%
column_ident:
    table_ident '.' ident
  | table_ident
;

table_ident:
    ident '.' database_ident
  | ident %prec DUMMY
;

database_ident:
    ident
;

ident:
    IDENT
  | IDENT_QUOTED
;
%%
[download]

Now, when I compile with Parse::Eyapp I have no conflicts

pl@nereida:~/LEyapp/examples$ eyapp -v dc2.eyp
pl@nereida:~/LEyapp/examples$
[download]

I have written Parse::Eyapp that expands Parse::Yapp with capabilities similar to Parse::RecDescent. Consider using it.
Hope it will help

Best

Casiano