flink sql 1.10.0 对hive GenericUDF支持

[Chief]

hi all：

        现在在做把原来离线 hive 上的任务迁移到flink sql 1.10.0的工作，之前看文档说flink 支持hive的GenericUDF，但是我发现个别在flink中报错，请问是我哪里设置有问题么？

        比如current_timestamp()

        在hive中

      而提交flink sql 任务报错

org.apache.flink.table.api.ValidationException: SQL validation failed. java.lang.reflect.InvocationTargetException

        at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:130)

        at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:105)

        at org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:127)

        at org.apache.flink.table.planner.operations.SqlToOperationConverter.convertSqlInsert(SqlToOperationConverter.java:342)

        at org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:142)

        at org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:66)

        at org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlUpdate(TableEnvironmentImpl.java:484)

        at com.trusfort.twinkling.sql.util.SqlSubmit.callInsertInto(SqlSubmit.java:55)

        at com.trusfort.twinkling.sql.util.SqlSubmit.callCommand(SqlSubmit.java:27)

        at com.trusfort.twinkling.sql.batch.template.BatchSlidingWindowSqlTemplate.main(BatchSlidingWindowSqlTemplate.java:60)

        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:498)

        at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:321)

        at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:205)

        at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:138)

        at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:664)

        at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:213)

        at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:895)

        at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:968)

        at java.security.AccessController.doPrivileged(Native Method)

        at javax.security.auth.Subject.doAs(Subject.java:422)

        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1754)

        at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)

        at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:968)

Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException

        at org.apache.flink.table.planner.functions.utils.HiveFunctionUtils.invokeGetResultType(HiveFunctionUtils.java:77)

        at org.apache.flink.table.planner.functions.utils.HiveScalarSqlFunction.lambda$createReturnTypeInference$0(HiveScalarSqlFunction.java:83)

        at org.apache.calcite.sql.SqlOperator.inferReturnType(SqlOperator.java:470)

        at org.apache.calcite.sql.SqlOperator.validateOperands(SqlOperator.java:437)

        at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:303)

        at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:219)

        at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5600)

        at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5587)

        at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:139)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:1691)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveType(SqlValidatorImpl.java:1676)

        at org.apache.calcite.sql.SqlOperator.constructArgTypeList(SqlOperator.java:593)

        at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:237)

        at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:219)

        at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5600)

        at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5587)

        at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:139)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:1691)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveType(SqlValidatorImpl.java:1676)

        at org.apache.calcite.sql.type.InferTypes.lambda$static$0(InferTypes.java:46)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.inferUnknownTypes(SqlValidatorImpl.java:1865)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.inferUnknownTypes(SqlValidatorImpl.java:1853)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectItem(SqlValidatorImpl.java:477)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelectList(SqlValidatorImpl.java:4105)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3389)

        at org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60)

        at org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1008)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:968)

        at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:216)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:943)

        at org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:650)

        at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:126)

        ... 25 more

Caused by: java.lang.reflect.InvocationTargetException

        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:498)

        at org.apache.flink.table.planner.functions.utils.HiveFunctionUtils.invokeGetResultType(HiveFunctionUtils.java:73)

        ... 57 more

Caused by: java.lang.NullPointerException

        at org.apache.hadoop.hive.ql.udf.generic.GenericUDFUnixTimeStamp.initializeInput(GenericUDFUnixTimeStamp.java:50)

        at org.apache.hadoop.hive.ql.udf.generic.GenericUDFToUnixTimeStamp.initialize(GenericUDFToUnixTimeStamp.java:67)

        at org.apache.hadoop.hive.ql.udf.generic.GenericUDF.initializeAndFoldConstants(GenericUDF.java:139)

        at org.apache.flink.table.functions.hive.HiveGenericUDF.getHiveResultType(HiveGenericUDF.java:100)

        ... 62 more

语句都是一样的为啥就跑错了，请大家给点思路。