GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/12871
[SPARK-15093][SQL] create/delete/rename directory for InMemoryCatalog
operations if needed
## What changes were proposed in this pull request?
following operations have file system operation now:
1. CREATE DATABASE: create a dir
2. DROP DATABASE: delete the dir
3. ALTER DATABASE: rename the dir
4. CREATE TABLE: create a dir
5. DROP TABLE: delete the dir
6. RENAME TABLE: rename the dir
TODO:
we should also add file system operation for partition related operations,
like CREATE PARTITION. But one problem is, should we do transaction for it?
e.g. if we are trying to create 4 partitions, the first 3 success but the last
one failed because of some IO problems, should we roll back the first 3
partition directory creation?
## How was this patch tested?
todo
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark catalog
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12871.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 #12871
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commit 667f089a1ab4b3b733a2af7907e3aa00224d9ecc
Author: Wenchen Fan <[email protected]>
Date: 2016-05-03T14:25:44Z
create/delete/rename directory for InMemoryCatalog operations if needed
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