hi
这貌似确实是一个bug，先用子查询打开后程序就可以运行正常了
Benchao Li <libenc...@apache.org> 于2020年7月23日周四 下午12:52写道：
> 现在有一个work around，就是你可以用子查询先把row展开，比如：
> select ...
> from (
> select data.rule_results as rule_results, ...
> ) cross join unnest(rule_results) as t(...)
>
> Benchao Li <libenc...@apache.org> 于2020年7月23日周四 下午12:44写道：
>
> > 我感觉这可能是calcite的bug，CC Danny老师
> >
> > Dream-底限 <zhan...@akulaku.com> 于2020年7月22日周三 下午5:46写道：
> >
> >> hi 、Benchao Li
> >> 我尝试了将数组打散的方式，但是报了一个莫名其妙的错误，可以帮忙看看嘛
> >>
> >> tableEnv.executeSql("CREATE TABLE parser_data_test (\n" +
> >> " data ROW<flow_task_id BIGINT,flow_id STRING,flow_version
> >> STRING,path STRING,country_id INT,create_time BIGINT," +
> >> "spent_time DECIMAL(10,2),features
> >> ROW<`user_ic_no_aku_uid.pdl_cdpd`
> >> STRING,`user_ic_no_aku_uid.pdl_current_unpay` INT," +
> >> "`user_ic_no_aku_uid.current_overdue_collection`
> >> INT>,rule_results ARRAY<ROW<rule_id STRING,rule_name STRING," +
> >> "rule_type_name STRING,`result` INT,in_path BOOLEAN>>>,\n" +
> >> " createTime BIGINT,\n" +
> >> " tindex INT\n" +
> >> ") WITH (\n" +
> >> " 'connector' = 'kafka-0.11',\n" +
> >> " 'topic' = 'parser_data_test',\n" +
> >> " 'properties.bootstrap.servers' = 'localhost:9092',\n" +
> >> " 'properties.group.id' = 'testGroup',\n" +
> >> " 'scan.startup.mode' = 'earliest-offset',\n" +
> >> " 'format' = 'json',\n" +
> >> " 'json.fail-on-missing-field' = 'false',\n" +
> >> " 'json.ignore-parse-errors' = 'true'\n" +
> >> ")");
> >>
> >> Table table = tableEnv.sqlQuery("select
> >>
> >>
> data.flow_task_id,data.features.`user_ic_no_aku_uid.pdl_current_unpay`,rule_id,tindex
> >> from parser_data_test CROSS JOIN UNNEST(data.rule_results) AS t
> >> (rule_id,rule_name,rule_type_name,`result`,in_path)");
> >>
> >> table.printSchema();
> >> tableEnv.toAppendStream(table,
> >>
> >>
> Types.ROW(TypeConversions.fromDataTypeToLegacyInfo(table.getSchema().getFieldDataTypes()))).print();
> >>
> >>
> >> 异常信息：
> >>
> >> rg.apache.flink.table.api.ValidationException: SQL validation failed.
> >> From line 0, column 0 to line 1, column 139: Column 'data.data' not
> >> found in table 'parser_data_test'
> >>
> >> at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org
> >>
> $apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:146)
> >> at
> >>
> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:108)
> >> at
> >>
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:185)
> >> at
> >>
> org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:78)
> >> at
> >>
> org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlQuery(TableEnvironmentImpl.java:664)
> >> at
> >>
> com.akulaku.data.flink.ParserDataTest.parserDataTest(ParserDataTest.java:63)
> >> 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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> >> at
> >>
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> >> at
> >>
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> >> at
> >>
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> >> at
> >>
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> >> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> >> at
> >>
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> >> at
> >>
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> >> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> >> at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> >> at
> >> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> >> at
> org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> >> at
> >> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> >> at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> >> at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> >> at
> >>
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
> >> at
> >>
> com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
> >> at
> >>
> com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
> >> at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
> >> Caused by: org.apache.calcite.runtime.CalciteContextException: From
> >> line 0, column 0 to line 1, column 139: Column 'data.data' not found
> >> in table 'parser_data_test'
> >> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> >> Method)
> >> at
> >>
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> >> at
> >>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> >> at
> java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> >> at
> >>
> org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:457)
> >> at
> >> org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:839)
> >> at
> >> org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:824)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:5089)
> >> at
> >>
> org.apache.calcite.sql.validate.DelegatingScope.fullyQualify(DelegatingScope.java:439)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:5991)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:5976)
> >> at
> >> org.apache.calcite.sql.SqlIdentifier.accept(SqlIdentifier.java:321)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.expand(SqlValidatorImpl.java:5583)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateUnnest(SqlValidatorImpl.java:3271)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3253)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3238)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateJoin(SqlValidatorImpl.java:3303)
> >> at
> >>
> org.apache.flink.table.planner.calcite.FlinkCalciteSqlValidator.validateJoin(FlinkCalciteSqlValidator.java:86)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3247)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3510)
> >> 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:1110)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084)
> >> at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:232)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1059)
> >> at
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:766)
> >> at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org
> >>
> $apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:141)
> >> ... 28 more
> >> Caused by: org.apache.calcite.sql.validate.SqlValidatorException:
> >> Column 'data.data' not found in table 'parser_data_test'
> >> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> >> Method)
> >> at
> >>
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> >> at
> >>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> >> at
> java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> >> at
> >>
> org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:457)
> >> at
> >> org.apache.calcite.runtime.Resources$ExInst.ex(Resources.java:550)
> >> ... 51 more
> >>
> >>
> >> Benchao Li <libenc...@apache.org> 于2020年7月22日周三 下午2:05写道：
> >>
> >> > Hi，
> >> > 如果只是想打平array，Flink有个内置的方法，可以参考[1]的”Expanding arrays into a relation“部分
> >> >
> >> > [1]
> >> >
> >> >
> >>
> https://ci.apache.org/projects/flink/flink-docs-master/dev/table/sql/queries.html#joins
> >> >
> >> > Jark Wu <imj...@gmail.com> 于2020年7月22日周三 上午11:17写道：
> >> >
> >> > > Hi,
> >> > >
> >> > > Row[] 作为 eval 参数，目前还不支持。社区已经有一个 issue 在跟进支持这个功能：
> >> > > https://issues.apache.org/jira/browse/FLINK-17855
> >> > >
> >> > >
> >> > > Best,
> >> > > Jark
> >> > >
> >> > > On Wed, 22 Jul 2020 at 10:45, Dream-底限 <zhan...@akulaku.com> wrote:
> >> > >
> >> > > > hi,
> >> > > > 我想将一个array<row>打散成多行，但是并没有成功
> >> > > >
> >> > > > @FunctionHint(input =@DataTypeHint("ARRAY<ROW<rule_id
> >> STRING,rule_name
> >> > > > STRING,rule_type_name STRING,`result` INT,in_path BOOLEAN>>")
> >> ,output
> >> > > > = @DataTypeHint("ROW<rule_id STRING,rule_name
> STRING,rule_type_name
> >> > > > STRING,`result` INT,in_path BOOLEAN>"))
> >> > > > public static class FlatRowFunction extends TableFunction<Row> {
> >> > > > private static final long serialVersionUID = 1L;
> >> > > >
> >> > > > public void eval(Row[] rows) {
> >> > > > for (Row row : rows) {
> >> > > > collect(row);
> >> > > > }
> >> > > > }
> >> > > > }
> >> > > >
> >> > > > 异常如下：
> >> > > >
> >> > > > org.apache.flink.table.api.ValidationException: SQL validation
> >> failed.
> >> > > > From line 1, column 149 to line 1, column 174: No match found for
> >> > > > function signature
> >> > > > flatRow(<RecordType:peek_no_expand(VARCHAR(2147483647) rule_id,
> >> > > > VARCHAR(2147483647) rule_name, VARCHAR(2147483647) rule_type_name,
> >> > > > INTEGER result, BOOLEAN in_path) ARRAY>)
> >> > > >
> >> > > > at
> >> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org
> >> > > >
> >> > >
> >> >
> >>
> $apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:146)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:108)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:187)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:78)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlQuery(TableEnvironmentImpl.java:658)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> com.akulaku.data.flink.ParserDataTest.parserDataTest(ParserDataTest.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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> >> > > > at
> >> > org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> >> > > > at
> >> org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> >> > > > at
> >> > > org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> >> > > > at
> >> > > > org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> >> > > > at
> >> > > org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> >> > > > at
> >> > > org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> >> > > > at
> org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> >> > > > at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
> >> > > > at
> >> > com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
> >> > > > Caused by: org.apache.calcite.runtime.CalciteContextException:
> From
> >> > > > line 1, column 149 to line 1, column 174: No match found for
> >> function
> >> > > > signature flatRow(<RecordType:peek_no_expand(VARCHAR(2147483647)
> >> > > > rule_id, VARCHAR(2147483647) rule_name, VARCHAR(2147483647)
> >> > > > rule_type_name, INTEGER result, BOOLEAN in_path) ARRAY>)
> >> > > > at
> >> > sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> >> > > > Method)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> >> > > > at
> >> > > java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:457)
> >> > > > at
> >> > > >
> org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:839)
> >> > > > at
> >> > > >
> org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:824)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:5089)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.handleUnresolvedFunction(SqlValidatorImpl.java:1882)
> >> > > > at
> >> > > >
> org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:305)
> >> > > > at
> >> > > >
> org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:218)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5858)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5845)
> >> > > > at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:139)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:1800)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.ProcedureNamespace.validateImpl(ProcedureNamespace.java:57)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1110)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3256)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3238)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateJoin(SqlValidatorImpl.java:3303)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.flink.table.planner.calcite.FlinkCalciteSqlValidator.validateJoin(FlinkCalciteSqlValidator.java:86)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3247)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3510)
> >> > > > 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:1110)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084)
> >> > > > at
> >> > org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:232)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1059)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:766)
> >> > > > at
> >> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org
> >> > > >
> >> > >
> >> >
> >>
> $apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:141)
> >> > > > ... 28 more
> >> > > > Caused by: org.apache.calcite.sql.validate.SqlValidatorException:
> No
> >> > > > match found for function signature
> >> > > > flatRow(<RecordType:peek_no_expand(VARCHAR(2147483647) rule_id,
> >> > > > VARCHAR(2147483647) rule_name, VARCHAR(2147483647) rule_type_name,
> >> > > > INTEGER result, BOOLEAN in_path) ARRAY>)
> >> > > > at
> >> > sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> >> > > > Method)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> >> > > > at
> >> > > java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> >> > > > at
> >> > > >
> >> > >
> >> >
> >>
> org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:457)
> >> > > > at
> >> > > > org.apache.calcite.runtime.Resources$ExInst.ex(Resources.java:550)
> >> > > > ... 56 more
> >> > > >
> >> > > >
> >> > > > godfrey he <godfre...@gmail.com> 于2020年7月21日周二 下午7:41写道：
> >> > > >
> >> > > > > 可以，定义清楚 getResultType 和 getParameterTypes, 可以参考[1]
> >> > > > >
> >> > > > > [1]
> >> > > > >
> >> > > > >
> >> > > >
> >> > >
> >> >
> >>
> https://ci.apache.org/projects/flink/flink-docs-release-1.11/dev/table/functions/udfs.html#implementation-guide
> >> > > > >
> >> > > > >
> >> > > > > Dream-底限 <zhan...@akulaku.com> 于2020年7月21日周二 下午7:25写道：
> >> > > > >
> >> > > > > > hi
> >> > > > > >
> >> > > > > >
> >> > > > >
> >> > > >
> >> > >
> >> >
> >>
> 我这面在定义一个表函数，通过继承TableFunction完成操作，但是eval方法中的参数类型都是java基本类型（至少看到的demo都是如此），想问一下eval方法中可以传flink
> >> > > > > > 内部类型吗，比如说我想在eval()方法中传递Row类型要怎么操作，eval(Row row)
> >> > > > > >
> >> > > > >
> >> > > >
> >> > >
> >> >
> >> >
> >> > --
> >> >
> >> > Best,
> >> > Benchao Li
> >> >
> >>
> >
> >
> > --
> >
> > Best,
> > Benchao Li
> >
>
>
> --
>
> Best,
> Benchao Li
>
