{"record":{"id":"0e771e79f681698c","repo":"apache/flink","slug":"row-field-does-not-have-any-children-s","errorCode":null,"errorMessage":"Row field does not have any children: %s.","messagePattern":"Row field does not have any children: (.+?)\\.","errorType":"exception","errorClass":"FlinkRuntimeException","httpStatus":null,"severity":"error","filePath":"flink-formats/flink-parquet/src/main/java/org/apache/flink/formats/parquet/vector/reader/NestedColumnReader.java","lineNumber":124,"sourceCode":"    }\n\n    private Tuple2<LevelDelegation, WritableColumnVector> readRow(\n            ParquetGroupField field, int readNumber, ColumnVector vector, boolean inside)\n            throws IOException {\n        HeapRowVector heapRowVector = (HeapRowVector) vector;\n        LevelDelegation levelDelegation = null;\n        List<ParquetField> children = field.getChildren();\n        WritableColumnVector[] childrenVectors = heapRowVector.getFields();\n        WritableColumnVector[] finalChildrenVectors =\n                new WritableColumnVector[childrenVectors.length];\n        for (int i = 0; i < children.size(); i++) {\n            Tuple2<LevelDelegation, WritableColumnVector> tuple =\n                    readData(children.get(i), readNumber, childrenVectors[i], true);\n            levelDelegation = tuple.f0;\n            finalChildrenVectors[i] = tuple.f1;\n        }\n        if (levelDelegation == null) {\n            throw new FlinkRuntimeException(\n                    String.format(\"Row field does not have any children: %s.\", field));\n        }\n\n        RowPosition rowPosition =\n                NestedPositionUtil.calculateRowOffsets(\n                        field,\n                        levelDelegation.getDefinitionLevel(),\n                        levelDelegation.getRepetitionLevel());\n\n        // If row was inside the structure, then we need to renew the vector to reset the\n        // capacity.\n        if (inside) {\n            heapRowVector =\n                    new HeapRowVector(rowPosition.getPositionsCount(), finalChildrenVectors);\n        } else {\n            heapRowVector.setFields(finalChildrenVectors);\n        }\n","sourceCodeStart":106,"sourceCodeEnd":142,"githubUrl":"https://github.com/apache/flink/blob/2f3c205e9266cb30240eb7f4fdab15cad629a70f/flink-formats/flink-parquet/src/main/java/org/apache/flink/formats/parquet/vector/reader/NestedColumnReader.java#L106-L142","documentation":"Error \"Row field does not have any children: %s.\" thrown in apache/flink.","triggerScenarios":"Triggered at runtime when the operation fails because: Row field does not have any children: the reported value.","commonSituations":"Commonly caused by misconfiguration, missing dependencies or files, unsupported types or operations, or invalid user input leading to: Row field does not have any children: the reported value.","solutions":["Address the cause reported by the error message: Row field does not have any children: the reported value.","Verify the inputs, configuration values, and classpath/dependency setup related to this operation, then retry."],"exampleFix":"Correct the condition described (\"Row field does not have any children: the reported value.\") and rerun the job or command.","handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"2f3c205e9266cb30240eb7f4fdab15cad629a70f","analyzedAt":"2026-08-14T08:48:24.518Z","schemaVersion":2},"datasetVersion":"2026-08-14T10:17:34.591Z"}