A placeholder used in LSE templates as an expansion of the
    column-name placeholder. The templates use the term column-
    qualifier to describe leftmost loop in the following syntax
    diagram for the column-name syntax.

  column-name =

  ---+----------->-----------------+-> <name-of-column> -->
     +-> <table-name> -------+> . -+
     +-> <view-name> --------+
     +-> <correlation-name> -+

    If you expand column-qualifier in the templates, you will see the
    optional items of table-name, view-name, and alias.