inner left right full
在sql中的join union all
select * from test_hadoop_pig t1 join test_hadoop_key t2 on t1.prov_id=t2.key
在hadoop pig 的join
joinName = join load2_output by ( id ) FULL ,load1 by ( id ) ;
inner left right full
在sql中的join union all
select * from test_hadoop_pig t1 join test_hadoop_key t2 on t1.prov_id=t2.key
在hadoop pig 的join
joinName = join load2_output by ( id ) FULL ,load1 by ( id ) ;