目前有两个DataStream<String>的流,通过mapfunction, 转成DataStream<RowData>流,请问DataStream<RowData>怎么转成table,并使用flink sql进行操作。 *(注:因为mapfunction对流做了些顺序的限制,目前无法无法直接用flink sql cdc直接定义表!!!)*
*目前我的做法会报错:* StreamTableEnvironment fsTableEnv = StreamTableEnvironment.create(fsEnv, fsSettings); DataStreamSource<String> json1 // canal json的格式 DataStreamSource<String> json2 // canal json的格式 ConnectedStreams<String, String> connect= caliber_cdc_json.connect(caliber_snapshot_json); //connect DataStream<RowData> snapshot_cdc_stream = connect.flatMap( new SnapshotCdcCoRichFlatMapFunction() ); //做连接 //3, 注册表,将表数据,直接输出 Table snapshot_cdc_table = fsTableEnv.fromDataStream(snapshot_cdc_stream); fsTableEnv.createTemporaryView("test", snapshot_cdc_table); String output = "CREATE TABLE test_mirror (\n" + "`id` INT,\n" + "`name` VARCHAR(255),\n" + "`time` TIMESTAMP(3),\n" + "PRIMARY KEY(id) NOT ENFORCED\n" + ") WITH (\n" + " 'connector' = 'print'\n" + ")"; //4, app logic String op = "INSERT into test_mirror SELECT * from test"; fsTableEnv.executeSql(output); fsTableEnv.executeSql(op); *但提交任务失败,错误信息:* serializationSchema:root |-- id: INT NOT NULL |-- name: VARCHAR(255) |-- time: TIMESTAMP(3) |-- status: INT |-- CONSTRAINT PK_3386 PRIMARY KEY (id) snapshot_cdc_table:UnnamedTable$0 +----------------+ | table name | +----------------+ | UnnamedTable$0 | | test | | test_mirror | +----------------+ 3 rows in set ------------------------------------------------------------ The program finished with the following exception: org.apache.flink.client.program.ProgramInvocationException: The main method caused an error: A raw type backed by type information has no serializable string representation. It needs to be resolved into a proper raw type. at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:302) at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:198) at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:149) at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:699) at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:232) at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:916) at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:992) at org.apache.flink.client.cli.CliFrontend$$Lambda$58/1706292388.call(Unknown Source) at org.apache.flink.runtime.security.contexts.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:992) *Caused by: org.apache.flink.table.api.TableException: A raw type backed by type information has no serializable string representation. It needs to be resolved into a proper raw type.* at org.apache.flink.table.types.logical.TypeInformationRawType.asSerializableString(TypeInformationRawType.java:101) at org.apache.flink.table.planner.sinks.TableSinkUtils$$anonfun$2.apply(TableSinkUtils.scala:92) at org.apache.flink.table.planner.sinks.TableSinkUtils$$anonfun$2.apply(TableSinkUtils.scala:92) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.Iterator$class.foreach(Iterator.scala:891) at scala.collection.AbstractIterator.foreach(Iterator.scala:1334) at scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at scala.collection.AbstractIterable.foreach(Iterable.scala:54) at scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at scala.collection.AbstractTraversable.map(Traversable.scala:104) at org.apache.flink.table.planner.sinks.TableSinkUtils$.validateSchemaAndApplyImplicitCast(TableSinkUtils.scala:92) at org.apache.flink.table.planner.delegation.PlannerBase$$anonfun$2.apply(PlannerBase.scala:229) at org.apache.flink.table.planner.delegation.PlannerBase$$anonfun$2.apply(PlannerBase.scala:204) at scala.Option.map(Option.scala:146) at org.apache.flink.table.planner.delegation.PlannerBase.translateToRel(PlannerBase.scala:204) at org.apache.flink.table.planner.delegation.PlannerBase$$anonfun$1.apply(PlannerBase.scala:163) at org.apache.flink.table.planner.delegation.PlannerBase$$anonfun$1.apply(PlannerBase.scala:163) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.Iterator$class.foreach(Iterator.scala:891) at scala.collection.AbstractIterator.foreach(Iterator.scala:1334) at scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at scala.collection.AbstractIterable.foreach(Iterable.scala:54) at scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at scala.collection.AbstractTraversable.map(Traversable.scala:104) at org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:163) at org.apache.flink.table.api.internal.TableEnvironmentImpl.translate(TableEnvironmentImpl.java:1264) at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeInternal(TableEnvironmentImpl.java:700) at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeOperation(TableEnvironmentImpl.java:787) at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeSql(TableEnvironmentImpl.java:690) at com.qqmusic.quku.demo_app.StreamTableSql.main(StreamTableSql.java:126) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:288) ... 9 more 请问是啥原因?需要怎么做? -- Sent from: http://apache-flink.147419.n8.nabble.com/