visit_ColumnDefinition

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb, line 7
        def visit_ColumnDefinition(o)
          sql = super
          if o.primary_key? && o.type != :primary_key
            sql << " PRIMARY KEY "
            add_column_options!(sql, column_options(o))
          end
          sql
        end