wgtmac commented on code in PR #40609:
URL: https://github.com/apache/arrow/pull/40609#discussion_r1531064683


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ci/scripts/python_wheel_windows_test.bat:
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@@ -56,8 +56,15 @@ python -c "import pyarrow.dataset" || exit /B 1
 python -c "import pyarrow.flight" || exit /B 1
 python -c "import pyarrow.fs" || exit /B 1
 python -c "import pyarrow.json" || exit /B 1
+python -c "import pyarrow.orc" || exit /B 1
 python -c "import pyarrow.parquet" || exit /B 1
 python -c "import pyarrow.substrait" || exit /B 1
 
+@rem Download IANA Timezone Database for ORC C++

Review Comment:
   The root cause is that when creating an ORC reader it tries to read the 
local timezone: 
https://github.com/apache/orc/blob/main/c%2B%2B/src/Reader.cc#L251 which by 
default searchs `/usr/share/zoneinfo` if env `TZDIR` is unset: 
https://github.com/apache/orc/blob/main/c%2B%2B/src/Timezone.cc#L659
   
   So the workaround here is to download tzdb and set env `TZDIR` to make the 
test happy. I think we can improve this on the ORC side:
   - More search path candidates for IANA TZDB.
   - Read the TZDB lazily as the metadata field is optional and for timestamp 
type only: 
https://github.com/apache/orc-format/blob/main/src/main/proto/orc/proto/orc_proto.proto#L181
   - Ship TZDB if the build process happens on Windows.
   
   



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