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Posted to user-zh@flink.apache.org by yujianbo <15...@163.com> on 2020/11/30 08:51:11 UTC

关于flink cdc sql转出Stream流问题

代码采用sql方式接入mysql cdc数据然后转出Stream流， 写入kudu，但是不知道怎么去获取
row里面的主键字段是哪一个和字段名称和类型等？
或者toRetractStream可以指定其他的class？？？

下面是代码
======================================
        tableEnv.executeSql(createTableSql);
        Table table = tableEnv.sqlQuery(querySql);
        DataStream<Tuple2&lt;Boolean, Row>> dataStream =
tableEnv.toRetractStream(table, Row.class);
        dataStream.print().setParallelism(1);
======================================



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Re: 关于flink cdc sql转出Stream流问题

Posted by Jark Wu <im...@gmail.com>.

row 里面的数据就是你 schema 中定义的字段和顺序，可以按下标取值。

On Tue, 1 Dec 2020 at 13:59, jsqf <ya...@gmail.com> wrote:

> 可以使用这种方式:
> DataStream<RowData> dstream = tableEnv.toAppendStream(sourceTable,
> RowData.class);
>
>
>
> --
> Sent from: http://apache-flink.147419.n8.nabble.com/
>

Re: 关于flink cdc sql转出Stream流问题

Posted by jsqf <ya...@gmail.com>.

可以使用这种方式:
DataStream<RowData> dstream = tableEnv.toAppendStream(sourceTable,
RowData.class);



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