1 echo select * from t11 where t11.f1
=2;
2 ---------------------------------------------------------
3 t11.f1 t11.f2 t11.f3 t11.f4 t11.f5
4 ---------------------------------------------------------
7 echo select * from t11 where t11.f1
=t11.f1
;
8 ---------------------------------------------------------
9 t11.f1 t11.f2 t11.f3 t11.f4 t11.f5
10 ---------------------------------------------------------