Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Pig Wiki" for change 
notification.

The following page has been changed by OlgaN:
http://wiki.apache.org/pig/JoinFramework

------------------------------------------------------------------------------
  The data coming out of the join is not guaranteed to be sorted on the join 
key which could cause problems for queries that follow join by `GROUP` or 
`ORDER BY` on the prefix of the join key. This should be taken into account 
when choosing join type.
  
  Note that CROSS can take advantage of this approach as well.
+ 
+ Details of the current implementation and performance measurements can be 
found in PigFRJoin.
  
  === Indexed Join (IJ) ===
  

Reply via email to