Fix wrong query result when column value is Null#344

Merged

imay merged 3 commits intoapache:masterfrom kangkaisen:query-result-wrong

Nov 26, 2018

+30

Commits on Nov 22, 2018

Fix worng query result when column value is Null
kangkaisen
committed

Commits on Nov 23, 2018

update variable's name
kangkaisen
committed

Commits on Nov 26, 2018

Add more constraint to has_converted
kangkaisen
committed