Versions Compared

Old Version 6

changes.mady.by.user Lefty Leverenz

Saved on

compared with

New Version 7

changes.mady.by.user Lefty Leverenz

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: clean up last fix

...

The default for hive.auto.convert.join.noconditionaltask is true which means auto conversion is enabled. (Originally the default was false – see HIVE-3784 – but it was changed to true by HIVE-4146 before Hive 0.11.0 was released.)

 false which means auto conversion is disabled.

The size configuration enables the user to control what size table can fit in memory. This value represents the sum of the sizes of tables that can be converted to hashmaps that fit in memory. Currently, n-1 tables of the join have to fit in memory for the map-join optimization to take effect. There is no check to see if the table is a compressed one or not and what the potential size of the table can be. The effect of this assumption on the results is discussed in the next section.

...