tree 21e2bb3c38005008b7c8563b2b49b4c09611ae46
parent 7b80235d4f28a6a9443b50150e09f93bcea9d4af
author Haoming Zhang <zhm1993zhm@gmail.com> 1499361035 -0700
committer Haoming Zhang <zhm1993zhm@gmail.com> 1499361035 -0700

add alternative sql statements