GitHub user MaxGekk opened a pull request:
https://github.com/apache/spark/pull/21803
[SPARK-24849][SQL] Converting a value of StructType to a DDL string
## What changes were proposed in this pull request?
In the PR, I propose to extend the `StructType` object by new method
`toDDL` which converts a value of the `StructType` type to a string formatted
in DDL style. The resulted string can be used in a table creation.
## How was this patch tested?
I add a test for checking the new method and 2 round trip tests: `fromDDL`
-> `toDDL` and `toDDL` -> `fromDDL`
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/MaxGekk/spark-1 to-ddl
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/21803.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 #21803
----
commit 38f905ad61f9197d12213bd93f2f755d428ee431
Author: Maxim Gekk <maxim.gekk@...>
Date: 2018-07-18T14:33:31Z
New method - toDDL
commit 6e0509326393ab0554b66df0ae65ba263b2c4fa9
Author: Maxim Gekk <maxim.gekk@...>
Date: 2018-07-18T14:39:16Z
Simplification of a test
commit 34511db4c283e1013de203ca03ce152b26cf62f4
Author: Maxim Gekk <maxim.gekk@...>
Date: 2018-07-18T14:44:38Z
New test for cases
----
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
