Exception in thread "main" org.apache.flink.table.api.ValidationException: join
relations with ambiguous names: id, name, value
at
org.apache.flink.table.plan.logical.LogicalNode.failValidation(LogicalNode.scala:156)
at
org.apache.flink.table.plan.logical.Join.validate(operators.scala:463)
at org.apache.flink.table.api.Table.join(table.scala:589)
at org.apache.flink.table.api.Table.join(table.scala:397)
at
com.opensourceteams.module.bigdata.flink.example.tableapi.operation.innerJoin.Run$.main(Run.scala:26)
at
com.opensourceteams.module.bigdata.flink.example.tableapi.operation.innerJoin.Run.main(Run.scala)
————————————————————————————————————————————————————
package
com.opensourceteams.module.bigdata.flink.example.tableapi.operation.innerJoin
import org.apache.flink.api.scala.{ExecutionEnvironment, _}
import org.apache.flink.table.api.TableEnvironment
import org.apache.flink.table.api.scala._
object Run {
def main(args: Array[String]): Unit = {
val env = ExecutionEnvironment.getExecutionEnvironment
val tableEnv = TableEnvironment.getTableEnvironment(env)
val dataSet = env.fromElements( (1,"a",10),(2,"b",20), (3,"c",30) )
val dataSet2 = env.fromElements( (1,"a",10),(20,"b",20), (30,"c",30) )
//从dataset转化为 table
val table = tableEnv.fromDataSet(dataSet,'id,'name,'value)
val table2 = tableEnv.fromDataSet(dataSet2,'id,'name,'value)
table.join(table2).where(" id = id ").first(1000).print()
}
}
Best,
thinktothings
