Request for contributor permissions；

[winifred.wenhui.t...@gmail.com]

Hello,

I would like to contribute to Flink. Could someone assign contributor 
permissions to me?
My JIRA's username is "winipanda"
Willing to contribute to Flink!

Thanks,
Winifred


winifred.wenhui.t...@gmail.com

[DISCUSS] Support Higher-order functions in Flink sql

[winifred.wenhui.t...@gmail.com]

Hello all，

Spark 2.4.0 was released last month. I noticed that Spark 2.4 
“Add a lot of new built-in functions, including higher-order functions, to deal 
with complex data types easier.”[1]
I wonder if it's necessary for Flink to add higher-order functions to enhance 
it's ability.

By the way, I found that if we wants to enhance the functionality of Flink sql, 
we often need to modify Calcite. It may be a little inconvenient，so may be we 
can extend Calcite core parser in Flink to deal with some non-standard SQL 
syntax, as mentioned in Flink SQL DDL Design[2].

Look forward to your feedback.

Best,
Wen-hui Tang

[1] https://issues.apache.org/jira/browse/SPARK-23899
[2] 
https://docs.google.com/document/d/1TTP-GCC8wSsibJaSUyFZ_5NBAHYEB1FVmPpP7RgDGBA/edit#



Winifred-wenhui Tang