你可以试用下 新版的 connector ('connector' = 'kafka'),对于类型的处理要完善很多。
Best,
Jark
On Wed, 26 Aug 2020 at 20:46, Danny Chan <
[hidden email]> wrote:
> 是的 加了 primary key constraint 后会强制将类型转成 Not nullable,这个是 primary key 的特性导致的。
>
> Best,
> Danny Chan
> 在 2020年8月20日 +0800 PM5:19,xiao cai <
[hidden email]>,写道:
> > Hi:
> > flink版本1.11.0 connector为kafka
> > DDL中声明某个字段为primary key时,会报类型不匹配,去掉primary key constraint就可以正常执行。
> > 把shop_id设置为 varchar not null也不行。
> >
> >
> > org.apache.flink.table.api.ValidationException: Type STRING NOT NULL of
> table field 'shop_id' does not match with the physical type STRING of the
> 'shop_id' field of the TableSource return type.
> >
> >
> > SQL如下:
> > create table source_0 (
> > `shop_id` varchar,
> > `user_id` bigint,
> > `category_id` int,
> > `ts` bigint,
> > `proc_time` as PROCTIME(),
> > `event_time` AS TO_TIMESTAMP(FROM_UNIXTIME(`ts` / 1000, 'yyyy-MM-dd
> HH:mm:ss')),
> > watermark for event_time AS event_time,
> > PRIMARY KEY (shop_id, user_id) NOT ENFORCED
> > ) with (
> > 'connector.type' = 'kafka',
> >
> >
> > )
>