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From tison <wander4...@gmail.com>
Subject Re: Schema with TypeInformation or DataType
Date Fri, 17 Apr 2020 10:05:07 GMT
Thanks for your inputs and sorry that I said Schema doesn't support
DataType to register a field because I was looking into Flink 1.9 codes...

Best,
tison.


Jark Wu <imjark@gmail.com> 于2020年4月17日周五 下午2:42写道:

> Hi Tison,
>
> Migration from TypeInformation to DataType is a large work and will across
> many releases. As far as I can tell, we will finalize the work in 1.11.
> As godfrey said above, Flink SQL & Table API should always use DataType,
> DataStream uses TypeInformation.
>
> Schema already supports DataType to register a field, and the the method
> using TypeInformation to register field is deprecated since 1.10.
>
> Best,
> Jark
>
> On Fri, 17 Apr 2020 at 14:14, tison <wander4096@gmail.com> wrote:
>
>> Hi,
>>
>> I notice that our type system has two branches. One  is TypeInformation
>> while the other is
>> DataType. It is said that Table API will use DataType but there are
>> several questions about
>> this statement:
>>
>> 1. Will TypeInformation be deprecated and we use DataType as type system
>> everywhere?
>> 2. Schema in Table API currently support only TypeInformation to register
>> a field, shall we support
>> the DataType way as well?
>>
>> Best,
>> tison.
>>
>

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