GitHub user dongjoon-hyun opened a pull request:
https://github.com/apache/spark/pull/14116
[SPARK-16452][SQL][WIP] Basic INFORMATION_SCHEMA support
## What changes were proposed in this pull request?
This PR supports `INFORMATION_SCHEMA` in Spark Catalog. Please refer the
[design
document](https://issues.apache.org/jira/secure/attachment/12816915/INFORMATION_SCHEMAsupport.pdf).
```
scala> spark.catalog
scala> sql("show databases").collect()
res1: Array[org.apache.spark.sql.Row] = Array([default],
[information_schema])
```
Although there are several working items in this PR, other PRs like
`support column listing for temporary table` are related to this, too.
- [O] DATABASE / TABLE POPULATION
- [O] SUPPORT FULL SCAN
- [O] SUPPORT PROJECTION PUSH-DOWN
- [X] SUPPORT FILTER PUSHDOWN
- ...
## How was this patch tested?
Pass the Jenkins tests including a new testsuite.
(If this patch involves UI changes, please attach a screenshot; otherwise,
remove this)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dongjoon-hyun/spark SPARK-16452
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14116.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 #14116
----
commit cbdd6413419cb7dcedef5414c65a268cd6124ddb
Author: Dongjoon Hyun <[email protected]>
Date: 2016-07-09T12:54:30Z
[SPARK-16452][SQL] Basic INFORMATION_SCHEMA support
----
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