// table names seem to allow ":" delimiters, e.g. for Informix see #1134
ObjectNames RelObjectNames() : {
    String token = null;
    Token delimiter = null;
    List<String> data = new ArrayList<String>();
    List<String> delimiters = new ArrayList<String>();
} {
    token = RelObjectNameExt() { data.add(token); }
    (
        LOOKAHEAD (2) (
            ( delimiter = "..."  { delimiters.add("."); data.add(null); delimiters.add("."); data.add(null); delimiters.add("."); } )
            |
            ( delimiter = ".."  { delimiters.add("."); data.add(null); delimiters.add("."); } )
            |
            ( ( delimiter = "." | delimiter = ":" ) { delimiters.add(delimiter.image); } )
        )

        token = RelObjectNameExt2() { data.add(token); }
    ) *

    { return new ObjectNames(data, delimiters); }
}

// column names do not allow ":" delimeters as those represent JSON `GET` operators
ObjectNames ColumnIdentifier() : {
    String token = null;
    Token delimiter = null;
    List<String> data = new ArrayList<String>();
    List<String> delimiters = new ArrayList<String>();
} {
    token = RelObjectNameExt() { data.add(token); }
    (
        LOOKAHEAD (2) (
            ( delimiter = "..."  { delimiters.add("."); data.add(null); delimiters.add("."); data.add(null); delimiters.add("."); } )
            |
            ( delimiter = ".."  { delimiters.add("."); data.add(null); delimiters.add("."); } )
            |
            ( delimiter = "."  { delimiters.add(delimiter.image); } )
        )

        token = RelObjectNameExt2() { data.add(token); }
    ) *

    { return new ObjectNames(data, delimiters); }
}