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| author | wangzhenhua <wangzhenhua@huawei.com> | 2016-10-14 21:18:49 +0800 |
|---|---|---|
| committer | Wenchen Fan <wenchen@databricks.com> | 2016-10-14 21:18:49 +0800 |
| commit | 7486442fe0b70f2aea21d569604e71d7ddf19a77 (patch) | |
| tree | e691541bddda84476f509aeb676f8d3b5fc8c82c /bin/spark-class.cmd | |
| parent | 28b645b1e643ae0f6c56cbe5a92356623306717f (diff) | |
| download | spark-7486442fe0b70f2aea21d569604e71d7ddf19a77.tar.gz spark-7486442fe0b70f2aea21d569604e71d7ddf19a77.tar.bz2 spark-7486442fe0b70f2aea21d569604e71d7ddf19a77.zip | |
[SPARK-17073][SQL][FOLLOWUP] generate column-level statistics
## What changes were proposed in this pull request?
This pr adds some test cases for statistics: case sensitive column names, non ascii column names, refresh table, and also improves some documentation.
## How was this patch tested?
add test cases
Author: wangzhenhua <wangzhenhua@huawei.com>
Closes #15360 from wzhfy/colStats2.
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