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https://issues.apache.org/jira/browse/IMPALA-13892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on IMPALA-13892 started by Joe McDonnell.
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> Tuple caching correctness verification can't handle STRUCT types
> ----------------------------------------------------------------
>
> Key: IMPALA-13892
> URL: https://issues.apache.org/jira/browse/IMPALA-13892
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Affects Versions: Impala 5.0.0
> Reporter: Joe McDonnell
> Assignee: Joe McDonnell
> Priority: Critical
>
> Tuple caching correctness verification relies on debug-util's PrintRow().
> PrintRow() can write some collection types, but it does not currently write
> structs. With a fix for IMPALA-13886, running the following SQL twice crashes
> Impala:
> {noformat}
> select nested_struct from functional_parquet.complextypestbl;{noformat}
> It hits this DCHECK:
> {noformat}
> F0324 18:13:52.138927 1981618 raw-value.cc:517]
> c440c38c551d001d:ee76eec100000001] Check failed: false Unknown type:
> STRUCT{noformat}
> The crash stack is:
> {noformat}
> 6 impalad!google::LogMessageFatal::~LogMessageFatal() [logging.cc : 2048 +
> 0x5]
> 7 impalad!impala::RawValue::PrintValue(void const*, impala::ColumnType
> const&, int, std::__cxx11::basic_stringstream<char, std::char_traits<char>,
> std::allocator<char> >*, bool) [raw-value.cc : 517 + 0x8]
> 8 impalad!impala::RawValue::PrintValue(void const*, impala::ColumnType
> const&, int, std::__cxx11::basic_string<char, std::char_traits<char>,
> std::allocator<char> >*) [raw-value.cc : 135 + 0x1b]
> 9 impalad!impala::PrintTuple[abi:cxx11](impala::Tuple const*,
> impala::TupleDescriptor const&) [debug-util.cc : 184 + 0x11]
> 10 impalad!impala::PrintRow[abi:cxx11](impala::TupleRow*,
> impala::RowDescriptor const&) [debug-util.cc : 198 + 0xf]
> 11 impalad!impala::TupleTextFileWriter::Write(impala::RowBatch*)
> [tuple-text-file-writer.cc : 50 + 0xc]
> 12 impalad!impala::TupleCacheNode::GetNext(impala::RuntimeState*,
> impala::RowBatch*, bool*) [tuple-cache-node.cc : 315 + 0xf]
> 13 impalad!impala::FragmentInstanceState::ExecInternal()
> [fragment-instance-state.cc : 446 + 0x12]
> 14 impalad!impala::FragmentInstanceState::Exec() [fragment-instance-state.cc
> : 104 + 0xc]
> 15 impalad!impala::QueryState::ExecFInstance(impala::FragmentInstanceState*)
> [query-state.cc : 1013 + 0xc]
> {noformat}
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