Yes, I agree, these are the steps to take. Thanks for creating the issues.
> On 08 Dec 2015, at 07:18, Li, Chengxiang wrote:
>
> Chengxiang
ystem.
Thanks
Chengxiang
-Original Message-
From: Li, Chengxiang [mailto:chengxiang...@intel.com]
Sent: Thursday, December 3, 2015 4:43 PM
To: dev@flink.apache.org
Subject: RE: The null in Flink
Hi, Stephan
Treat UNKOWN as FALSE may works if the Boolean expression is used in filter
operation
-Original Message-
From: ewenstep...@gmail.com [mailto:ewenstep...@gmail.com] On Behalf Of Stephan
Ewen
Sent: Wednesday, December 2, 2015 6:27 PM
To: dev@flink.apache.org
Subject: Re: The null in Flink
Hi Chenliang!
I have to dig into this again, it was a while back. I think (vaguely) the
age-
> From: Aljoscha Krettek [mailto:aljos...@apache.org]
> Sent: Friday, November 27, 2015 6:41 PM
> To: dev@flink.apache.org
> Subject: Re: The null in Flink
>
> Oh, this is probably the Jira for what I mentioned:
> https://issues.apache.org/jira/browse/FLINK-2988
>
> &
ovember 27, 2015 6:41 PM
To: dev@flink.apache.org
Subject: Re: The null in Flink
Oh, this is probably the Jira for what I mentioned:
https://issues.apache.org/jira/browse/FLINK-2988
> On 27 Nov 2015, at 11:02, Aljoscha Krettek wrote:
>
> Hi,
> just some information. The Table API code
s,
>> Stephan
>>
>>
>> On Thu, Nov 26, 2015 at 6:41 AM, Li, Chengxiang
>> wrote:
>>
>>> Thanks, Timo.
>>> We may put the NULL related function support to SQL API, but for Scalar
>>> expression and Boolean expression, it already been su
e encounter NULL value.
>>
>> Thanks
>> Chengxiang
>>
>> -Original Message-
>> From: Timo Walther [mailto:twal...@apache.org]
>> Sent: Wednesday, November 25, 2015 7:33 PM
>> To: dev@flink.apache.org
>> Subject: Re: The null in Flink
calar expression and
> Boolean expression would fail while encounter NULL value.
>
> Thanks
> Chengxiang
>
> -Original Message-
> From: Timo Walther [mailto:twal...@apache.org]
> Sent: Wednesday, November 25, 2015 7:33 PM
> To: dev@flink.apache.org
> Subjec
.
Thanks
Chengxiang
-Original Message-
From: Timo Walther [mailto:twal...@apache.org]
Sent: Wednesday, November 25, 2015 7:33 PM
To: dev@flink.apache.org
Subject: Re: The null in Flink
Hi Chengxiang,
I totally agree that the Table API should fully support NULL values. The Table
API is a
rticles/misc/null-related-functions
-Original Message-
From: ewenstep...@gmail.com [mailto:ewenstep...@gmail.com] On Behalf Of Stephan
Ewen
Sent: Thursday, June 18, 2015 8:43 AM
To: dev@flink.apache.org
Subject: Re: The null in Flink
Hi!
I think we actually have two discussions her
nk.apache.org
Subject: Re: The null in Flink
Hi!
I think we actually have two discussions here, both of them important:
--
1) Null values in the Programming Language APIs
--
Fiel
Hi!
I think we actually have two discussions here, both of them important:
--
1) Null values in the Programming Language APIs
--
Fields in composite types may simply be null po
On Mon, Jun 15, 2015 at 8:45 AM, Maximilian Michels wrote:
> Just to give an idea what null values could cause in Flink: DataSet.count()
> returns the number of elements of all values in a Dataset (null or not)
> while #834 would ignore null values and aggregate the DataSet without them.
>
Compa
The example of SQL is obviously dominating thoughts of NULL, but I think
that the example of R is probably better in terms of how things can work
fairly well. NULL is a key concept and very helpful in a number of
settings. With R's fairly simple functional nature it is easy to filter
data and mos
Hi everyone,
I'm seeing a lot of null value related pull requests nowadays, like these:
https://github.com/apache/flink/pull/780
https://github.com/apache/flink/pull/831
https://github.com/apache/flink/pull/834
It used to be the case that null values were simply not supported by Flink.
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