连接谓词中不支持or

hive (default)> select
 > e.empno,
 > e.ename,
 > d.deptno
 > from
 > emp e
 > join
 > dept d
 > on
 > e.deptno=d.deptno or e.ename=d.dname;
FAILED: SemanticException [Error 10019]: Line 10:3 OR not
supported in JOIN currently 'dname'