[SPARK-1889] [SQL] Apply splitConjunctivePredicates to join condition while finding join ke...#836
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ueshin wants to merge 1 commit into
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[SPARK-1889] [SQL] Apply splitConjunctivePredicates to join condition while finding join ke...#836ueshin wants to merge 1 commit into
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@ueshin Thank you for the change. It looks good to me. |
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I've merged this into master & branch-1.0. Thanks! |
asfgit
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May 21, 2014
… while finding join ke... ...ys. When tables are equi-joined by multiple-keys `HashJoin` should be used, but `CartesianProduct` and then `Filter` are used. The join keys are paired by `And` expression so we need to apply `splitConjunctivePredicates` to join condition while finding join keys. Author: Takuya UESHIN <ueshin@happy-camper.st> Closes #836 from ueshin/issues/SPARK-1889 and squashes the following commits: fe1c387 [Takuya UESHIN] Apply splitConjunctivePredicates to join condition while finding join keys. (cherry picked from commit bb88875) Signed-off-by: Reynold Xin <rxin@apache.org>
pdeyhim
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Jun 25, 2014
… while finding join ke... ...ys. When tables are equi-joined by multiple-keys `HashJoin` should be used, but `CartesianProduct` and then `Filter` are used. The join keys are paired by `And` expression so we need to apply `splitConjunctivePredicates` to join condition while finding join keys. Author: Takuya UESHIN <ueshin@happy-camper.st> Closes apache#836 from ueshin/issues/SPARK-1889 and squashes the following commits: fe1c387 [Takuya UESHIN] Apply splitConjunctivePredicates to join condition while finding join keys.
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...ys.
When tables are equi-joined by multiple-keys
HashJoinshould be used, butCartesianProductand thenFilterare used.The join keys are paired by
Andexpression so we need to applysplitConjunctivePredicatesto join condition while finding join keys.