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| author | Michael Armbrust <michael@databricks.com> | 2015-03-17 19:47:51 -0700 |
|---|---|---|
| committer | Michael Armbrust <michael@databricks.com> | 2015-03-17 19:47:51 -0700 |
| commit | 3579003115fa3217cff6aa400729d96b0c7b257b (patch) | |
| tree | bad3f848417dfe25c37dff200fb77d0083d13019 /launcher | |
| parent | a6ee2f7940b9a64a81667615586ae597da837974 (diff) | |
| download | spark-3579003115fa3217cff6aa400729d96b0c7b257b.tar.gz spark-3579003115fa3217cff6aa400729d96b0c7b257b.tar.bz2 spark-3579003115fa3217cff6aa400729d96b0c7b257b.zip | |
[SPARK-6247][SQL] Fix resolution of ambiguous joins caused by new aliases
We need to handle ambiguous `exprId`s that are produced by new aliases as well as those caused by leaf nodes (`MultiInstanceRelation`).
Attempting to fix this revealed a bug in `equals` for `Alias` as these objects were comparing equal even when the expression ids did not match. Additionally, `LocalRelation` did not correctly provide statistics, and some tests in `catalyst` and `hive` were not using the helper functions for comparing plans.
Based on #4991 by chenghao-intel
Author: Michael Armbrust <michael@databricks.com>
Closes #5062 from marmbrus/selfJoins and squashes the following commits:
8e9b84b [Michael Armbrust] check qualifier too
8038a36 [Michael Armbrust] handle aggs too
0b9c687 [Michael Armbrust] fix more tests
c3c574b [Michael Armbrust] revert change.
725f1ab [Michael Armbrust] add statistics
a925d08 [Michael Armbrust] check for conflicting attributes in join resolution
b022ef7 [Michael Armbrust] Handle project aliases.
d8caa40 [Michael Armbrust] test case: SPARK-6247
f9c67c2 [Michael Armbrust] Check for duplicate attributes in join resolution.
898af73 [Michael Armbrust] Fix Alias equality.
Diffstat (limited to 'launcher')
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