,     iif('0000-00-00 00:00:00.000' <= '0000-00-00', 0, 0) AS TSCASE0,     iif('0000-00-00 00:00:00.000' <= cast('0000-00-00' as timestamp), 0, 0) AS TSCASE0,     iif(cast('0000-00-00 00:00:00.000' as timestamp) <= '0000-00-00', 0, 0) AS TSCASE0,     iif('0000-00-00 00:00:00.000' <= '0000-00-00 00:00:00.000', 0, 0) AS TSCASE0,     iif('0000-00-00 00:00:00.000' <= '0000-00-00 00:00:00.000', 0, 0) AS TSCASE0,     iif('0000-00-00 00:00:00.000' <= '0000-00-00  00:00:00.000', 0, 0) AS TSCASE0,     iif('0000-00-00 00:00:00.000' <= cast('0000-00-00  00:00:00.000' as timestamp), 0, 0) AS TSCASE0 FROM RDB$DATABASE