forked from apache/spark
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[SPARK-8300] DataFrame hint for broadcast join.
Users can now do ```scala left.join(broadcast(right), "joinKey") ``` to give the query planner a hint that "right" DataFrame is small and should be broadcasted. Author: Reynold Xin <rxin@databricks.com> Closes apache#6751 from rxin/broadcastjoin-hint and squashes the following commits: 953eec2 [Reynold Xin] Code review feedback. 88752d8 [Reynold Xin] Fixed import. 8187b88 [Reynold Xin] [SPARK-8300] DataFrame hint for broadcast join.
- Loading branch information
Showing
4 changed files
with
59 additions
and
8 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters