Hi, Elakiya.
Maybe this DDL could be executed. Please execute the select sql `select *
from KafkaTable`. Then I think there will be some error or the `user_id`
will not be read correctly.
Best,
Hang
elakiya udhayanan <laks....@gmail.com> 于2023年7月10日周一 16:25写道：
> Hi Hang Ruan,
>
> Thanks for your response. But in the documentation, they have an example
> of defining the Primary Key for the DDL statement (code below). In that
> case we should be able to define the primary key for the DDL rite. We have
> defined the primary key in our earlier use cases when it wasn't a nested
> field. Please correct me , If I have misunderstood anything.
>
> CREATE TABLE KafkaTable ( `ts` TIMESTAMP(3) METADATA FROM 'timestamp',
> `user_id` BIGINT, `item_id` BIGINT, `behavior` STRING, PRIMARY KEY
> (`user_id`) NOT ENFORCED) WITH ( 'connector' = 'upsert-kafka', ...
> 'key.format' = 'json', 'key.json.ignore-parse-errors' = 'true',
> 'value.format' = 'json', 'value.json.fail-on-missing-field' = 'false',
> 'value.fields-include' = 'EXCEPT_KEY')
>
> Thanks,
> Elakiya
>
> On Mon, Jul 10, 2023 at 1:09 PM Hang Ruan <ruanhang1...@gmail.com> wrote:
>
>> Hi, elakiya.
>>
>> The upsert-kafka connector will read the primary keys from the Kafka
>> message keys. We cannot define the fields in the Kafka message values as
>> the primary key.
>>
>> Best,
>> Hang
>>
>> elakiya udhayanan <laks....@gmail.com> 于2023年7月10日周一 13:49写道：
>>
>>> Hi team,
>>>
>>> I have a Kafka topic named employee which uses confluent avro schema and
>>> will emit the payload as below:
>>>
>>> {
>>> "employee": {
>>> "id": "123456",
>>> "name": "sampleName"
>>> }
>>> }
>>> I am using the upsert-kafka connector to consume the events from the
>>> above Kafka topic as below using the Flink SQL DDL statement, also here I
>>> want to use the id field as the Primary key. But I am unable to use the id
>>> field since it is inside the object.
>>>
>>> DDL Statement:
>>> String statement = "CREATE TABLE Employee (\r\n" +
>>> " employee ROW(id STRING, name STRING\r\n" +
>>> " ),\r\n" +
>>> " PRIMARY KEY (employee.id) NOT ENFORCED\r\n" +
>>> ") WITH (\r\n" +
>>> " 'connector' = 'upsert-kafka',\r\n" +
>>> " 'topic' = 'employee',\r\n" +
>>> " 'properties.bootstrap.servers' = 'kafka-cp-kafka:9092',\r\n" +
>>> " 'key.format' = 'raw',\r\n" +
>>> " 'value.format' = 'avro-confluent',\r\n" +
>>> " 'value.avro-confluent.url' = 'http://kafka-cp-schema-registry:8081',\r\n"
>>> +
>>> ")";
>>> Any help is appreciated TIA
>>>
>>> Thanks,
>>> Elakiya
>>>
>>
