canonical query tests for query classifier

query_classifier/test/canonical_tests/input.sql

@@ -0,0 +1,6 @@
+select sleep(2);
+select * from tst where lname='Doe';
+select 1,2,3,4,5,6 from tst;
+select * from tst where fname like '%a%';
+select * from tst where lname like '%e%' order by fname;
+insert into tst values ("John","Doe"),("Plato",null),("Nietzsche","");