I'd be happy to review a PR. At the minute, I'm still learning Spark
SQL, so writing documentation might be a bit of a stretch, but reviewing
would be fine.
Thanks!
On 12/16/2016 08:39 AM, Thakrar, Jayesh wrote:
Yes - that sounds good Anton, I can work on documenting the window
functions.
*From: *Anton Okolnychyi <anton.okolnyc...@gmail.com>
*Date: *Thursday, December 15, 2016 at 4:34 PM
*To: *Conversant <jthak...@conversantmedia.com>
*Cc: *Michael Armbrust <mich...@databricks.com>, Jim Hughes
<jn...@ccri.com>, "dev@spark.apache.org" <dev@spark.apache.org>
*Subject: *Re: Expand the Spark SQL programming guide?
I think it will make sense to show a sample implementation of
UserDefinedAggregateFunction for DataFrames, and an example of the
Aggregator API for typed Datasets.
Jim, what if I submit a PR and you join the review process? I also do
not mind to split this if you want, but it seems to be an overkill for
this part.
Jayesh, shall I skip the window functions part since you are going to
work on that?
2016-12-15 22:48 GMT+01:00 Thakrar, Jayesh
<jthak...@conversantmedia.com <mailto:jthak...@conversantmedia.com>>:
I too am interested in expanding the documentation for Spark SQL.
For my work I needed to get some info/examples/guidance on window
functions and have been using
https://databricks.com/blog/2015/07/15/introducing-window-functions-in-spark-sql.html
.
How about divide and conquer?
*From: *Michael Armbrust <mich...@databricks.com
<mailto:mich...@databricks.com>>
*Date: *Thursday, December 15, 2016 at 3:21 PM
*To: *Jim Hughes <jn...@ccri.com <mailto:jn...@ccri.com>>
*Cc: *"dev@spark.apache.org <mailto:dev@spark.apache.org>"
<dev@spark.apache.org <mailto:dev@spark.apache.org>>
*Subject: *Re: Expand the Spark SQL programming guide?
Pull requests would be welcome for any major missing features in
the guide:
https://github.com/apache/spark/blob/master/docs/sql-programming-guide.md
On Thu, Dec 15, 2016 at 11:48 AM, Jim Hughes <jn...@ccri.com
<mailto:jn...@ccri.com>> wrote:
Hi Anton,
I'd like to see this as well. I've been working on
implementing geospatial user-defined types and functions.
Having examples of aggregations and window functions would be
awesome!
I did test out implementing a distributed convex hull as a
UserDefinedAggregateFunction, and that seemed to work sensibly.
Cheers,
Jim
On 12/15/2016 03:28 AM, Anton Okolnychyi wrote:
Hi,
I am wondering whether it makes sense to expand the Spark
SQL programming guide with examples of aggregations
(including user-defined via the Aggregator API) and window
functions. For instance, there might be a separate
subsection under "Getting Started" for each functionality.
SPARK-16046 seems to be related but there is no activity
for more than 4 months.
Best regards,
Anton
