Versions Compared

Old Version 37

changes.mady.by.user Lefty Leverenz

Saved on

compared with

New Version 38

changes.mady.by.user Alan Gates

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

  • Vectorization will be turned off for update operations.  This is automatic and requires no action on the part of the user.  Non-update operations are not affected.  Updated tables can still be queried using vectorization.
  • In version 0.14 it is recommended that you set hive.optimize.sort.dynamic.partition=false when doing updates, as this produces more efficient execution plans.

Delete

Note
titleVersion Information

DELETE is available starting in Hive 0.14.

Deletes can only be performed on tables that support ACID. See Hive Transactions for details.

...

  • Vectorization will be turned off for delete operations.  This is automatic and requires no action on the part of the user.  Non-delete operations are not affected.  Tables with deleted data can still be queried using vectorization.
  • In version 0.14 it is recommended that you set hive.optimize.sort.dynamic.partition=false when doing deletes, as this produces more efficient execution plans.