test userassignment,roleassignment
Merge remote-tracking branch 'origin/zjw' into zhuqihan
alterSchemaStatementSuffix
modify AlterSchemaDesc.java
Merge remote-tracking branch 'origin/zjw' into zhuqihan
modify hivemetastoreclient
Merge remote-tracking branch 'origin/zhuqihan' into caoruyi
modify userassignment and roleassignment