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| author | Wenchen Fan <cloud0fan@outlook.com> | 2015-06-22 12:13:00 -0700 |
|---|---|---|
| committer | Michael Armbrust <michael@databricks.com> | 2015-06-22 12:13:00 -0700 |
| commit | da7bbb9435dae9a3bedad578599d96ea858f349e (patch) | |
| tree | 6f16ac50aefadb46ef8e2b2f8acb890984cba0fc /python/pyspark/sql/readwriter.py | |
| parent | 5d89d9f00ba4d6d0767a4c4964d3af324bf6f14b (diff) | |
| download | spark-da7bbb9435dae9a3bedad578599d96ea858f349e.tar.gz spark-da7bbb9435dae9a3bedad578599d96ea858f349e.tar.bz2 spark-da7bbb9435dae9a3bedad578599d96ea858f349e.zip | |
[SPARK-8104] [SQL] auto alias expressions in analyzer
Currently we auto alias expression in parser. However, during parser phase we don't have enough information to do the right alias. For example, Generator that has more than 1 kind of element need MultiAlias, ExtractValue don't need Alias if it's in middle of a ExtractValue chain.
Author: Wenchen Fan <cloud0fan@outlook.com>
Closes #6647 from cloud-fan/alias and squashes the following commits:
552eba4 [Wenchen Fan] fix python
5b5786d [Wenchen Fan] fix agg
73a90cb [Wenchen Fan] fix case-preserve of ExtractValue
4cfd23c [Wenchen Fan] fix order by
d18f401 [Wenchen Fan] refine
9f07359 [Wenchen Fan] address comments
39c1aef [Wenchen Fan] small fix
33640ec [Wenchen Fan] auto alias expressions in analyzer
Diffstat (limited to 'python/pyspark/sql/readwriter.py')
0 files changed, 0 insertions, 0 deletions