lincoln.lee created FLINK-6442: ---------------------------------- Summary: Extend TableAPI Support Sink Table Registration and ‘insert into’ Clause in SQL Key: FLINK-6442 URL: https://issues.apache.org/jira/browse/FLINK-6442 Project: Flink Issue Type: New Feature Components: Table API & SQL Reporter: lincoln.lee Assignee: lincoln.lee Priority: Minor
Currently in TableAPI there’s only registration method for source table, when we use SQL writing a streaming job, we should add additional part for the sink, like TableAPI does: {code} val sqlQuery = "SELECT * FROM MyTable WHERE _1 = 3" val t = StreamTestData.getSmall3TupleDataStream(env) tEnv.registerDataStream("MyTable", t) // one way: invoke tableAPI’s writeToSink method directly val result = tEnv.sql(sqlQuery) result.writeToSink(new YourStreamSink) // another way: convert to datastream first and then invoke addSink val result = tEnv.sql(sqlQuery).toDataStream[Row] result.addSink(new StreamITCase.StringSink) {code} >From the api we can see the sink table always be a derived table because its >'schema' is inferred from the result type of upstream query. Compare to traditional RDBMS which support DML syntax, a query with a target output could be written like this: {code} insert into table target_table_name [(column_name [ ,...n ])] query {code} design doc: https://goo.gl/n3phK5 -- This message was sent by Atlassian JIRA (v6.3.15#6346)