GitHub user adrian-wang opened a pull request:
https://github.com/apache/spark/pull/5643
[SPARK-7026] [SQL] fix left semi join with equi key and non-equi condition
When the `condition` extracted by `ExtractEquiJoinKeys` contain join
Predicate for left semi join, we can not plan it as semiJoin. Such as
SELECT * FROM testData2 x
LEFT SEMI JOIN testData2 y
ON x.b = y.b
AND x.a >= y.a + 2
Condition `x.a >= y.a + 2` can not evaluate on table `x`, so it throw errors
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/adrian-wang/spark spark7026
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/5643.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #5643
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commit 6eb62d24984862674641567cff9e5c1c06d5b50b
Author: Daoyuan Wang <[email protected]>
Date: 2015-04-23T02:32:38Z
fix left semi join with equi key and non-equi condition
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