GitHub user liancheng opened a pull request:
https://github.com/apache/spark/pull/12703
[SPARK-14445][SQL] Supports native execution of SHOW COLUMNS and SHOW
PARTITIONS
(This PR is mostly a rebased version of PR #12222 by @dilipbiswal with all
pending PR review comments addressed. Committer who merges this PR please
attribute it to @dilipbiswal.)
## What changes were proposed in this pull request?
This PR adds Native execution of `SHOW COLUMNS` and `SHOW PARTITION`
commands.
Command Syntax:
```sql
SHOW COLUMNS (FROM | IN) table_identifier [(FROM | IN) database]
SHOW PARTITIONS [db_name.]table_name [PARTITION(partition_spec)]
```
## How was this patch tested?
Added test cases in HiveCommandSuite to verify execution and
DDLCommandSuite to verify plans.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/liancheng/spark
spark-14445-show-columns-partitions
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12703.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #12703
----
commit b0edb3dd09bac2d8c44235f91bc360ffa831e074
Author: Dilip Biswal <[email protected]>
Date: 2016-04-01T17:25:41Z
[SPARK-14445] Support native execution of SHOW COLUMNS and SHOW PARTITIONS
commit a13db610805f9ec7817370d393a16260bfabd543
Author: Dilip Biswal <[email protected]>
Date: 2016-04-14T22:14:18Z
Andrew's comments
commit c0985a8a326e6c4af13bad9fb02e7b8f2b2171d8
Author: Dilip Biswal <[email protected]>
Date: 2016-04-15T06:19:20Z
test fix
commit 6cf6d954a799b9690a7f4a1b4a2a706207ea03e4
Author: Cheng Lian <[email protected]>
Date: 2016-04-26T15:26:08Z
Fixes issues introduced while rebasing
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