select 1+2/*hello*/+3;
1+2/*hello*/+3
6
select 1 /* long
multi line comment */;
1
1
/* empty query */;
Query was empty
select 1 /*!32301 +1 */;
1 /*!32301 +1
2
select 1 /*!52301 +1 */;
1
1
select 1--1;
1--1
2
select 1 --2
+1;
1 --2
+1
4
select 1 # The rest of the row will be ignored
;
1
1