Programming Pig by Alan Gates

Programming Pig by Alan Gates

Author:Alan Gates [Alan Gates]
Language: eng
Format: epub, pdf
Tags: COMPUTERS / Database Management / Data Mining
ISBN: 9781449309121
Publisher: O'Reilly Media
Published: 2011-05-15T16:00:00+00:00


Note

In Pig 0.8.0, the logical optimizer and logical plan were completely rewritten. The new optimizer and plan are used by default in 0.8.0, but old ones are available as a backup. After releasing 0.8.0, a number of issues were found with the new optimizer and plan. If you are using 0.8.0, I strongly encourage you to upgrade to Pig 0.8.1. As of the time of this writing, all known logical plan and optimizer issues in 0.8.0 were fixed in 0.8.1. If upgrading is not an option, the workaround is to turn off the new logical plan as described in Table 7-2. In Pig 0.9, the old logical plan has been removed.



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