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| author | Liang-Chi Hsieh <viirya@appier.com> | 2015-09-09 16:02:27 -0700 |
|---|---|---|
| committer | Davies Liu <davies.liu@gmail.com> | 2015-09-09 16:02:27 -0700 |
| commit | 45de518742446ddfbd4816c9d0f8501139f9bc2d (patch) | |
| tree | a95846ee727dcbc4f242871fdf3cf024d471ddcd /python | |
| parent | 71da1633c4dcc4e748fbe3b3236af90032b695ae (diff) | |
| download | spark-45de518742446ddfbd4816c9d0f8501139f9bc2d.tar.gz spark-45de518742446ddfbd4816c9d0f8501139f9bc2d.tar.bz2 spark-45de518742446ddfbd4816c9d0f8501139f9bc2d.zip | |
[SPARK-9730] [SQL] Add Full Outer Join support for SortMergeJoin
This PR is based on #8383 , thanks to viirya
JIRA: https://issues.apache.org/jira/browse/SPARK-9730
This patch adds the Full Outer Join support for SortMergeJoin. A new class SortMergeFullJoinScanner is added to scan rows from left and right iterators. FullOuterIterator is simply a wrapper of type RowIterator to consume joined rows from SortMergeFullJoinScanner.
Closes #8383
Author: Liang-Chi Hsieh <viirya@appier.com>
Author: Davies Liu <davies@databricks.com>
Closes #8579 from davies/smj_fullouter.
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