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https://issues.apache.org/jira/browse/FLINK-8558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16543258#comment-16543258
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ASF GitHub Bot commented on FLINK-8558:
---------------------------------------

Github user pnowojski commented on a diff in the pull request:

    https://github.com/apache/flink/pull/6323#discussion_r202354777
  
    --- Diff: 
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/schema/TableSourceSinkTable.scala
 ---
    @@ -21,23 +21,47 @@ package org.apache.flink.table.plan.schema
     import org.apache.calcite.rel.`type`.{RelDataType, RelDataTypeFactory}
     import org.apache.calcite.schema.Statistic
     import org.apache.calcite.schema.impl.AbstractTable
    +import org.apache.flink.table.api.TableException
     
    -class TableSourceSinkTable[T1, T2](val tableSourceTableOpt: 
Option[TableSourceTable[T1]],
    -                                   val tableSinkTableOpt: 
Option[TableSinkTable[T2]])
    +/**
    --- End diff --
    
    ditto: fixup Shuyi's commit 


> Add unified format interfaces and format discovery
> --------------------------------------------------
>
>                 Key: FLINK-8558
>                 URL: https://issues.apache.org/jira/browse/FLINK-8558
>             Project: Flink
>          Issue Type: New Feature
>          Components: Streaming Connectors
>            Reporter: Timo Walther
>            Assignee: Timo Walther
>            Priority: Major
>              Labels: pull-request-available
>
> In the last release, we introduced a new module {{flink-formats}}. Currently 
> only {{flink-avro}} is located there but we will add more formats such as 
> {{flink-json}}, {{flink-protobuf}}, and so on. For better separation of 
> concerns we want decouple connectors from formats: e.g., remove 
> {{KafkaAvroTableSource}} and {{KafkaJsonTableSource}}.
> A newly introduced {{FormatFactory}} will use Java service loaders to 
> discovery available formats in the classpath (similar to how file systems are 
> discovered now). A {{Format}} will provide a method for converting {{byte[]}} 
> to target record type.



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