[ANNOUNCE] Weekly community update #49

[Till Rohrmann]

Dear community,

this is the weekly community update thread #49. Please post any news and
updates you want to share with the community to this thread.

# Flink 1.7.0 has been released

The community has release Flink 1.7.0 [1].

# Flink intro slide set

Fabian has refined the slide set for an intro talk about Apache Flink [2].

# External shuffle service

The discussion about making Flink's shuffle service pluggable is
accelerating [3]. Please chime in if you have suggestions.

# Making flink-table Scala-free

Timo started a design discussion on how to make flink-table less dependent
on Scala [4]. See the corresponding Flip [5] for more information.

# Refactor source interface

The discussion about Flink's new source interface is very lively. Don't
forget to follow the discussion if you don't want to be left behind [6].

# Call for presentations for Flink Forward San Francisco 2019 has been
extended

The call for presentation for Flink Forward San Francisco 2019 has been
extended to December 7, 11:59 PT. Even if there is not much time left, try
to submit your proposal!

# Support interactive programming in Flink Table API

The discussion about interactive programming with Flink's Table API has
been progressed [7]. Take a look to stay up to date.

# Flink SQL DDL design

The Flink SQL DDL design is converging and it should not take much longer
until the community can agree on a final design [8].

[1]
https://lists.apache.org/thread.html/845b5859dc3ad8f32a3af1e48dcc33fc2a4edcb09b9998cf55a6b20d@%3Cdev.flink.apache.org%3E
[2]
https://lists.apache.org/thread.html/6a4a7381968ae76ce9ee93858885874965bda9b37c2803bfe4ab7505@%3Cdev.flink.apache.org%3E
[3]
https://docs.google.com/document/d/1ssTu8QE8RnF31zal4JHM1VaVENow-PweUtXSRr68nGg/edit?usp=sharing
[4]
https://lists.apache.org/thread.html/c3b2f72520aff8e87b60030b7850c24ecbebf2e692c421d04543e8f9@%3Cdev.flink.apache.org%3E
[5]
https://cwiki.apache.org/confluence/display/FLINK/FLIP-28%3A+Long-term+goal+of+making+flink-table+Scala-free
[6]
https://lists.apache.org/thread.html/992274ff9f1519f1ef7c9400c91346bea34c53e1b7adc5918d8faa43@%3Cdev.flink.apache.org%3E
[7]
https://lists.apache.org/thread.html/8a93d331f69ed9aa2c30dbc7793a3e8803155aa08fdaec71681aa92a@%3Cdev.flink.apache.org%3E
[8]
https://lists.apache.org/thread.html/9e8eaa74b391ac21ca7268475e1179e7965ecd6389b8f5bbf9e7d6e2@%3Cdev.flink.apache.org%3E

Cheers,
Till