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| author | Shixiong Zhu <shixiong@databricks.com> | 2016-05-10 23:53:55 -0700 |
|---|---|---|
| committer | Yin Huai <yhuai@databricks.com> | 2016-05-10 23:53:55 -0700 |
| commit | 875ef764280428acd095aec1834fee0ddad08611 (patch) | |
| tree | 82ccd9556e78d06e826403aacb366e5ba00f6c14 /licenses/LICENSE-graphlib-dot.txt | |
| parent | 007882c7ee06de37ba309424fced1e4c6b408572 (diff) | |
| download | spark-875ef764280428acd095aec1834fee0ddad08611.tar.gz spark-875ef764280428acd095aec1834fee0ddad08611.tar.bz2 spark-875ef764280428acd095aec1834fee0ddad08611.zip | |
[SPARK-15231][SQL] Document the semantic of saveAsTable and insertInto and don't drop columns silently
## What changes were proposed in this pull request?
This PR adds documents about the different behaviors between `insertInto` and `saveAsTable`, and throws an exception when the user try to add too man columns using `saveAsTable with append`.
## How was this patch tested?
Unit tests added in this PR.
Author: Shixiong Zhu <shixiong@databricks.com>
Closes #13013 from zsxwing/SPARK-15231.
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