ic4y opened a new issue, #2027: URL: https://github.com/apache/incubator-seatunnel/issues/2027
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/incubator-seatunnel/issues?q=is%3Aissue+label%3A%22bug%22) and found no similar issues. ### What happened I found in the test that using the transform sql plugin (`select * from type_test_number`) will cause the field data type to change Changed from `BigInteger` to `GenericType<java.math.BigInteger>` This would result in a data type mismatch. then the program fails If you cancel the Transform SQL, you won't have any problems ### SeaTunnel Version api-draft branch ### SeaTunnel Config ```conf # # Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You under the Apache License, Version 2.0 # (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # ###### ###### This config file is a demonstration of streaming processing in seatunnel config ###### env { # You can set flink configuration here execution.parallelism = 1 job.mode = "STREAMING" # job.mode = "BATCH" #execution.checkpoint.interval = 10000 #execution.checkpoint.data-uri = "hdfs://localhost:9000/checkpoint" } source { # This is a example source plugin **only for test and demonstrate the feature source plugin** jdbc { url = "jdbc:mysql://localhost/test?serverTimezone=GMT%2b8" driver = "com.mysql.cj.jdbc.Driver" connection_check_timeout_sec = 10 user = "root" password = "123456" query = "select * from type_number" parallelism = 1 result_table_name = "type_test_number" } # If you would like to get more information about how to configure seatunnel and see full list of source plugins, # please go to https://seatunnel.apache.org/docs/flink/configuration/source-plugins/Fake } transform { sql { sql = "select * from type_test_number" } # If you would like to get more information about how to configure seatunnel and see full list of transform plugins, # please go to https://seatunnel.apache.org/docs/flink/configuration/transform-plugins/Sql } sink { Console {} # If you would like to get more information about how to configure seatunnel and see full list of sink plugins, # please go to https://seatunnel.apache.org/docs/flink/configuration/sink-plugins/Console } ``` ### Running Command ```shell None ``` ### Error Exception ```log Caused by: org.apache.flink.table.codegen.CodeGenException: Incompatible types of expression and result type. Expression[GeneratedExpression(result$22,isNull$23,,BigInteger,false)] type is [BigInteger], result type is [GenericType<java.math.BigInteger>] at org.apache.flink.table.codegen.CodeGenerator$$anonfun$generateResultExpression$2.apply(CodeGenerator.scala:379) at org.apache.flink.table.codegen.CodeGenerator$$anonfun$generateResultExpression$2.apply(CodeGenerator.scala:377) at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59) at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48) at org.apache.flink.table.codegen.CodeGenerator.generateResultExpression(CodeGenerator.scala:377) at org.apache.flink.table.codegen.CodeGenerator.generateConverterResultExpression(CodeGenerator.scala:295) at org.apache.flink.table.plan.nodes.datastream.StreamScan$class.generateConversionProcessFunction(StreamScan.scala:115) at org.apache.flink.table.plan.nodes.datastream.StreamScan$class.convertToInternalRow(StreamScan.scala:74) at org.apache.flink.table.plan.nodes.datastream.DataStreamScan.convertToInternalRow(DataStreamScan.scala:46) at org.apache.flink.table.plan.nodes.datastream.DataStreamScan.translateToPlan(DataStreamScan.scala:90) at org.apache.flink.table.plan.nodes.datastream.DataStreamSink.translateInput(DataStreamSink.scala:189) at org.apache.flink.table.plan.nodes.datastream.DataStreamSink.writeToSink(DataStreamSink.scala:84) at org.apache.flink.table.plan.nodes.datastream.DataStreamSink.translateToPlan(DataStreamSink.scala:59) at org.apache.flink.table.planner.StreamPlanner.org$apache$flink$table$planner$StreamPlanner$$translateToCRow(StreamPlanner.scala:278) at org.apache.flink.table.planner.StreamPlanner$$anonfun$translate$1.apply(StreamPlanner.scala:123) at org.apache.flink.table.planner.StreamPlanner$$anonfun$translate$1.apply(StreamPlanner.scala:120) at scala.collection.TraversableLike$$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.StreamPlanner.translate(StreamPlanner.scala:120) at org.apache.flink.table.api.bridge.java.internal.StreamTableEnvironmentImpl.toStreamInternal(StreamTableEnvironmentImpl.java:439) at org.apache.flink.table.api.bridge.java.internal.StreamTableEnvironmentImpl.toRetractStream(StreamTableEnvironmentImpl.java:528) at org.apache.seatunnel.flink.util.TableUtil.tableToDataStream(TableUtil.java:46) at org.apache.seatunnel.flink.transform.Sql.processStream(Sql.java:53) at org.apache.seatunnel.core.starter.flink.execution.TransformExecuteProcessor.execute(TransformExecuteProcessor.java:75) ... 4 more ``` ### Flink or Spark Version _No response_ ### Java or Scala Version _No response_ ### Screenshots _No response_ ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. 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