# File lib/tapkit/access/sql.rb, line 845
                def sql_for_qualifier( qualifier )
                        case qualifier
                        when KeyValueQualifier
                                sql_for_key_value_qualifier qualifier
                        when KeyComparisonQualifier
                                sql_for_key_comparison_qualifier qualifier
                        when AndQualifier
                                sql_for_conjoined_qualifiers qualifier.qualifiers
                        when OrQualifier
                                sql_for_disjoined_qualifiers qualifier.qualifiers
                        when NotQualifier
                                sql_for_negated_qualifier qualifier.qualifier
                        else
                                nil
                        end
                end