Parquet sorted column ArrayIndexOutOfBoundsException

[devinrsmith]

I'm unable to sort a specific string column in parquet that has been exported by BigQuery. The values all appear to be null. The data can be all written out though, and upon reading the new parquet file, things seem OK. So, potentially this is specific to some edge case either in our code or the specifics of the parquet file.

java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
    at io.deephaven.chunk.ObjectChunk.get(ObjectChunk.java:77)
    at io.deephaven.engine.table.impl.sources.regioned.ColumnRegionChunkDictionary.getObject(ColumnRegionChunkDictionary.java:64)
    at io.deephaven.engine.table.impl.sources.regioned.ColumnRegionChunkDictionary.lambda$fillChunkAppend$1(ColumnRegionChunkDictionary.java:80)
    at io.deephaven.engine.rowset.RowSet.lambda$forAllRowKeys$0(RowSet.java:312)
    at io.deephaven.engine.rowset.impl.sortedranges.SortedRanges.forEachLong(SortedRanges.java:444)
    at io.deephaven.engine.rowset.impl.sortedranges.SortedRanges.ixForEachLong(SortedRanges.java:4615)
    at io.deephaven.engine.rowset.impl.WritableRowSetImpl.forEachRowKey(WritableRowSetImpl.java:339)
    at io.deephaven.engine.rowset.RowSet.forAllRowKeys(RowSet.java:311)
    at io.deephaven.engine.table.impl.sources.regioned.ColumnRegionChunkDictionary.fillChunkAppend(ColumnRegionChunkDictionary.java:80)
    at io.deephaven.engine.page.Page$WithDefaults.fillChunk(Page.java:70)
    at io.deephaven.engine.page.PageStore.fillChunk(PageStore.java:85)
    at io.deephaven.engine.page.PageStore.fillChunk(PageStore.java:85)
    at io.deephaven.engine.table.impl.sources.regioned.RegionedColumnSourceBase.fillChunk(RegionedColumnSourceBase.java:56)
    at io.deephaven.engine.table.impl.SortHelpers.makeAndFillValues(SortHelpers.java:788)
    at io.deephaven.engine.table.impl.SortHelpers.doChunkSortingOne(SortHelpers.java:513)
    at io.deephaven.engine.table.impl.SortHelpers.getSortMappingOne(SortHelpers.java:469)
    at io.deephaven.engine.table.impl.SortHelpers.getSortedKeys(SortHelpers.java:263)
    at io.deephaven.engine.table.impl.SortHelpers.getSortedKeys(SortHelpers.java:231)
    at io.deephaven.engine.table.impl.SortOperation.initialize(SortOperation.java:238)
    at io.deephaven.engine.table.impl.QueryTable.lambda$getResultNoMemo$80(QueryTable.java:3732)
    at io.deephaven.engine.table.impl.BaseTable.initializeWithSnapshot(BaseTable.java:1293)
    at io.deephaven.engine.table.impl.QueryTable.lambda$getResultNoMemo$81(QueryTable.java:3731)
    at io.deephaven.engine.table.impl.perf.QueryPerformanceRecorder.withNugget(QueryPerformanceRecorder.java:369)
    at io.deephaven.engine.table.impl.QueryTable.getResultNoMemo(QueryTable.java:3720)
    at io.deephaven.engine.table.impl.QueryTable.lambda$getResult$79(QueryTable.java:3714)
    at io.deephaven.engine.table.impl.QueryTable$MemoizedResult.getOrCompute(QueryTable.java:3674)
    at io.deephaven.engine.table.impl.QueryTable.memoizeResult(QueryTable.java:3643)
    at io.deephaven.engine.table.impl.QueryTable.getResult(QueryTable.java:3713)
    at io.deephaven.engine.table.impl.QueryTable.sort(QueryTable.java:2711)
    at io.deephaven.engine.table.impl.QueryTable.sort(QueryTable.java:100)
    at io.deephaven.api.TableOperationsDefaults.sort(TableOperationsDefaults.java:37)
    at io.deephaven.engine.table.impl.SortHelpers.doSymbolTableMapping(SortHelpers.java:368)
    at io.deephaven.engine.table.impl.SortHelpers.getSortedKeys(SortHelpers.java:261)
    at io.deephaven.engine.table.impl.SortHelpers.getSortedKeys(SortHelpers.java:231)
    at io.deephaven.engine.table.impl.SortOperation.initialize(SortOperation.java:238)
    at io.deephaven.engine.table.impl.QueryTable.lambda$getResultNoMemo$80(QueryTable.java:3732)
    at io.deephaven.engine.table.impl.BaseTable.initializeWithSnapshot(BaseTable.java:1293)
    at io.deephaven.engine.table.impl.QueryTable.lambda$getResultNoMemo$81(QueryTable.java:3731)
    at io.deephaven.engine.table.impl.perf.QueryPerformanceRecorder.withNugget(QueryPerformanceRecorder.java:369)
    at io.deephaven.engine.table.impl.QueryTable.getResultNoMemo(QueryTable.java:3720)
    at io.deephaven.engine.table.impl.QueryTable.lambda$getResult$79(QueryTable.java:3714)
    at io.deephaven.engine.table.impl.QueryTable$MemoizedResult.getOrCompute(QueryTable.java:3674)
    at io.deephaven.engine.table.impl.QueryTable.memoizeResult(QueryTable.java:3643)
    at io.deephaven.engine.table.impl.QueryTable.getResult(QueryTable.java:3713)
    at io.deephaven.engine.table.impl.QueryTable.sort(QueryTable.java:2711)
    at io.deephaven.engine.table.impl.QueryTable.sort(QueryTable.java:100)
    at io.deephaven.engine.table.impl.UncoalescedTable.sort(UncoalescedTable.java:415)
    at io.deephaven.engine.table.impl.UncoalescedTable.sort(UncoalescedTable.java:43)
    at io.deephaven.server.table.ops.SortTableGrpcImpl.create(SortTableGrpcImpl.java:104)
    at io.deephaven.server.table.ops.SortTableGrpcImpl.create(SortTableGrpcImpl.java:26)
    at io.deephaven.server.table.ops.TableServiceGrpcImpl$BatchExportBuilder.doExport(TableServiceGrpcImpl.java:757)
    at io.deephaven.server.session.SessionState$ExportObject.doExport(SessionState.java:995)

Will share file directly with those interested.