[jira] [Created] (FLINK-12256) Implement KafkaReadableCatalog

[Shang Yuanchun (Jira)]

Artsem Semianenka created FLINK-12256:
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             Summary: Implement KafkaReadableCatalog
                 Key: FLINK-12256
                 URL: https://issues.apache.org/jira/browse/FLINK-12256
             Project: Flink
          Issue Type: New Feature
          Components: Connectors / Kafka, Table SQL / Client
    Affects Versions: 1.9.0
            Reporter: Artsem Semianenka
            Assignee: Artsem Semianenka


 KafkaReadableCatalog is a special implementation of ReadableCatalog interface (which introduced in [FLIP-30|https://cwiki.apache.org/confluence/display/FLINK/FLIP-30%3A+Unified+Catalog+APIs] )  to retrieve meta information such topic name/schema of the topic from Apache Kafka and Confluent Schema Registry. 

New ReadableCatalog allows a user to run SQL queries like:
{code:java}
Select * form kafka.topic_name  
{code}
without the need for manual definition of the table schema.



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