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Rationale for this change

Non existent FlightSQL readme file

What changes are included in this PR?

The initial version of FlightSQL readme file

Are these changes tested?

N/A

Are there any user-facing changes?

N/A

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@alinaliBQ alinaliBQ left a comment

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LGTM!

@alinaliBQ alinaliBQ changed the title [GAC-45] Initial Version of FlightSQL Readme apacheGH-30622: [GAC-45] Initial Version of FlightSQL Readme Dec 13, 2023
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alinaliBQ commented Dec 13, 2023

I updated title so it would be picked up by Arrow community's searches for the ODBC github issue 🙂

@affonsov affonsov merged this pull request into GAC-odbc-driver Dec 14, 2023
@affonsov affonsov deleted the affonsov/GAC/readme-initial-version branch December 14, 2023 00:11
alinaliBQ pushed a commit that referenced this pull request Mar 24, 2025
…n timezone (apache#45051)

### Rationale for this change

If the timezone database is present on the system, but does not contain a timezone referenced in a ORC file, the ORC reader will crash with an uncaught C++ exception.

This can happen for example on Ubuntu 24.04 where some timezone aliases have been removed from the main `tzdata` package to a `tzdata-legacy` package. If `tzdata-legacy` is not installed, trying to read a ORC file that references e.g. the "US/Pacific" timezone would crash.

Here is a backtrace excerpt:
```
#12 0x00007f1a3ce23a55 in std::terminate() () from /lib/x86_64-linux-gnu/libstdc++.so.6
#13 0x00007f1a3ce39391 in __cxa_throw () from /lib/x86_64-linux-gnu/libstdc++.so.6
#14 0x00007f1a3f4accc4 in orc::loadTZDB(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) ()
   from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
#15 0x00007f1a3f4ad392 in std::call_once<orc::LazyTimezone::getImpl() const::{lambda()#1}>(std::once_flag&, orc::LazyTimezone::getImpl() const::{lambda()#1}&&)::{lambda()#2}::_FUN() () from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
#16 0x00007f1a4298bec3 in __pthread_once_slow (once_control=0xa5ca7c8, init_routine=0x7f1a3ce69420 <__once_proxy>) at ./nptl/pthread_once.c:116
#17 0x00007f1a3f4a9ad0 in orc::LazyTimezone::getEpoch() const ()
   from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
#18 0x00007f1a3f4e76b1 in orc::TimestampColumnReader::TimestampColumnReader(orc::Type const&, orc::StripeStreams&, bool) ()
   from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
#19 0x00007f1a3f4e84ad in orc::buildReader(orc::Type const&, orc::StripeStreams&, bool, bool, bool) ()
   from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
#20 0x00007f1a3f4e8dd7 in orc::StructColumnReader::StructColumnReader(orc::Type const&, orc::StripeStreams&, bool, bool) ()
   from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
#21 0x00007f1a3f4e8532 in orc::buildReader(orc::Type const&, orc::StripeStreams&, bool, bool, bool) ()
   from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
#22 0x00007f1a3f4925e9 in orc::RowReaderImpl::startNextStripe() ()
   from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
#23 0x00007f1a3f492c9d in orc::RowReaderImpl::next(orc::ColumnVectorBatch&) ()
   from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
#24 0x00007f1a3e6b251f in arrow::adapters::orc::ORCFileReader::Impl::ReadBatch(orc::RowReaderOptions const&, std::shared_ptr<arrow::Schema> const&, long) ()
   from /tmp/arrow-HEAD.ArqTs/venv-wheel-3.12-manylinux_2_17_x86_64.manylinux2014_x86_64/lib/python3.12/site-packages/pyarrow/libarrow.so.1900
```

### What changes are included in this PR?

Catch C++ exceptions when iterating ORC batches instead of letting them slip through.

### Are these changes tested?

Yes.

### Are there any user-facing changes?

No.
* GitHub Issue: apache#40633

Authored-by: Antoine Pitrou <[email protected]>
Signed-off-by: Sutou Kouhei <[email protected]>
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