adamjoneill edited a comment on issue #1325: presto - querying nested object in parquet file created by hudi URL: https://github.com/apache/incubator-hudi/issues/1325#issuecomment-585748045 Futher update I've narrowed it down to the array on the nested object. The following works when i place the following object on the kinesis stream ``` const valueToUse = { ...order, tickets: { items: [], }, }; ``` but when placed on the kinesis stream with an object in the array it fails ``` const valueToUse = { ...order, tickets: { items: [ { ticketType: { id: 258815, }, }, ], }, }; ``` error message and stack trace ``` Query 20200213_131029_00032_hej8h failed: No value present java.util.NoSuchElementException: No value present at java.util.Optional.get(Optional.java:135) at com.facebook.presto.parquet.reader.ParquetReader.readArray(ParquetReader.java:156) at com.facebook.presto.parquet.reader.ParquetReader.readColumnChunk(ParquetReader.java:282) at com.facebook.presto.parquet.reader.ParquetReader.readStruct(ParquetReader.java:193) at com.facebook.presto.parquet.reader.ParquetReader.readColumnChunk(ParquetReader.java:276) at com.facebook.presto.parquet.reader.ParquetReader.readStruct(ParquetReader.java:193) at com.facebook.presto.parquet.reader.ParquetReader.readColumnChunk(ParquetReader.java:276) at com.facebook.presto.parquet.reader.ParquetReader.readStruct(ParquetReader.java:193) at com.facebook.presto.parquet.reader.ParquetReader.readColumnChunk(ParquetReader.java:276) at com.facebook.presto.parquet.reader.ParquetReader.readBlock(ParquetReader.java:268) at com.facebook.presto.hive.parquet.ParquetPageSource$ParquetBlockLoader.load(ParquetPageSource.java:247) at com.facebook.presto.hive.parquet.ParquetPageSource$ParquetBlockLoader.load(ParquetPageSource.java:225) at com.facebook.presto.spi.block.LazyBlock.assureLoaded(LazyBlock.java:283) at com.facebook.presto.spi.block.LazyBlock.getLoadedBlock(LazyBlock.java:274) at com.facebook.presto.spi.Page.getLoadedPage(Page.java:261) at com.facebook.presto.operator.TableScanOperator.getOutput(TableScanOperator.java:254) at com.facebook.presto.operator.Driver.processInternal(Driver.java:379) at com.facebook.presto.operator.Driver.lambda$processFor$8(Driver.java:283) at com.facebook.presto.operator.Driver.tryWithLock(Driver.java:675) at com.facebook.presto.operator.Driver.processFor(Driver.java:276) at com.facebook.presto.execution.SqlTaskExecution$DriverSplitRunner.processFor(SqlTaskExecution.java:1077) at com.facebook.presto.execution.executor.PrioritizedSplitRunner.process(PrioritizedSplitRunner.java:162) at com.facebook.presto.execution.executor.TaskExecutor$TaskRunner.run(TaskExecutor.java:483) at com.facebook.presto.$gen.Presto_0_227____20200211_134743_1.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) ```
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