GitHub user hvanhovell opened a pull request:
https://github.com/apache/spark/pull/15301
[SPARK-17717][SQL] Add exist/find methods to Catalog.
## What changes were proposed in this pull request?
The current user facing catalog does not implement methods for checking
object existence or finding objects. You could theoretically do this using the
`list*` commands, but this is rather cumbersome and can actually be costly when
there are many objects. This PR adds `exists*` and `find*` methods for
Databases, Table and Functions.
## How was this patch tested?
Added tests to `org.apache.spark.sql.internal.CatalogSuite`
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/hvanhovell/spark SPARK-17717
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15301.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 #15301
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commit 92233f8010f46d44bcbcee25179cf0fb1d768ffa
Author: Herman van Hovell <[email protected]>
Date: 2016-09-29T18:13:15Z
Add exist/find methods to Catalog.
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