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| author | Sameer Agarwal <sameer@databricks.com> | 2016-02-19 14:48:34 -0800 |
|---|---|---|
| committer | Michael Armbrust <michael@databricks.com> | 2016-02-19 14:48:34 -0800 |
| commit | 091f6a7830bbee01fa580fbb0336b9f4fcac0dfa (patch) | |
| tree | 818ed942896580321b80015c358ff1bd24796f44 /core | |
| parent | 14844118b596a93dbc28b442a7ea2b58fa4df648 (diff) | |
| download | spark-091f6a7830bbee01fa580fbb0336b9f4fcac0dfa.tar.gz spark-091f6a7830bbee01fa580fbb0336b9f4fcac0dfa.tar.bz2 spark-091f6a7830bbee01fa580fbb0336b9f4fcac0dfa.zip | |
[SPARK-13091][SQL] Rewrite/Propagate constraints for Aliases
This PR adds support for rewriting constraints if there are aliases in the query plan. For e.g., if there is a query of form `SELECT a, a AS b`, any constraints on `a` now also apply to `b`.
JIRA: https://issues.apache.org/jira/browse/SPARK-13091
cc marmbrus
Author: Sameer Agarwal <sameer@databricks.com>
Closes #11144 from sameeragarwal/alias.
Diffstat (limited to 'core')
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