Global : A global group is formed from all rows in an input table with the same key value. Local : A local group is formed ...

       
  • Global: A global group is formed from all rows in an input table with the same key value.
  • Local: A local group is formed from a consecutive sequence of rows from an input table with the same key value.
Multiple local groups may be produced with the same key value but only a single global group is produced for a given key value.