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author | Davies Liu <davies@databricks.com> | 2015-12-17 08:04:11 -0800 |
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committer | Davies Liu <davies.liu@gmail.com> | 2015-12-17 08:04:11 -0800 |
commit | a170d34a1b309fecc76d1370063e0c4f44dc2142 (patch) | |
tree | b0371b08ebe08ec569e67072b29e74fd04bffc47 /bin/spark-submit | |
parent | cd3d937b0cc89cb5e4098f7d9f5db2712e3de71e (diff) | |
download | spark-a170d34a1b309fecc76d1370063e0c4f44dc2142.tar.gz spark-a170d34a1b309fecc76d1370063e0c4f44dc2142.tar.bz2 spark-a170d34a1b309fecc76d1370063e0c4f44dc2142.zip |
[SPARK-12395] [SQL] fix resulting columns of outer join
For API DataFrame.join(right, usingColumns, joinType), if the joinType is right_outer or full_outer, the resulting join columns could be wrong (will be null).
The order of columns had been changed to match that with MySQL and PostgreSQL [1].
This PR also fix the nullability of output for outer join.
[1] http://www.postgresql.org/docs/9.2/static/queries-table-expressions.html
Author: Davies Liu <davies@databricks.com>
Closes #10353 from davies/fix_join.
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