Fix an erratum from 6.sql.
Fix an erratum from 6.sql.

ihoneymon/yobi,Limseunghwan/oss,brainagenet/yobi,naver/yobi,yona-projects/yona,yona-projects/yona,yona-projects/yona,brainagenet/yobi,doortts/fork-yobi,yona-projects/yona,doortts/fork-yobi,brainagenet/yobi,ihoneymon/yobi,ChangsungKim/TestRepository01,ihoneymon/yobi,oolso/yobi,doortts/fork-yobi,bloodybear/yona,violetag/demo,ahb0327/yobi,naver/yobi,ahb0327/yobi,ChangsungKim/TestRepository01,bloodybear/yona,ahb0327/yobi,Limseunghwan/oss,violetag/demo,doortts/forked-for-history,doortts/forked-for-history,oolso/yobi,bloodybear/yona,Limseunghwan/oss,oolso/yobi,naver/yobi,bloodybear/yona,doortts/fork-yobi,doortts/forked-for-history