@@ -1,17 +1,25 @@
+select sz_g from /univ_demo/person WHERE sz_g != '' limit -1
+/**
+output()
+count(1393)
+**/
+;
select sz_g from /univ_demo/person WHERE sz_g != '' group by sz_g
/**
output()
+count(50)
**/
;
select distinct sz_g from /univ_demo/person WHERE sz_g != ''