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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/04/21 03:45:54 UTC
[GitHub] [arrow] HaoChen-ch opened a new issue, #12942: [c++][substrait]Couldn't find a file named expression.pb
HaoChen-ch opened a new issue, #12942:
URL: https://github.com/apache/arrow/issues/12942
https://github.com/apache/arrow/blob/master/cpp/src/arrow/engine/substrait/expression_internal.h include a header "substrait/expression.pb.h" ,but I can find a protobuf file named expression.pb even in https://github.com/substrait-io/substrait/tree/main/proto/substrait . Could you help me to get the expression.pb file
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[GitHub] [arrow] westonpace commented on issue #12942: [c++][substrait]Couldn't find a file named expression.pb
Posted by GitBox <gi...@apache.org>.
westonpace commented on issue #12942:
URL: https://github.com/apache/arrow/issues/12942#issuecomment-1105830108
However, Arrow does not yet have a fully compliant consumer of Substrait IR. That is a work in-progress. For example: https://issues.apache.org/jira/browse/ARROW-16036?jql=Project%20%3D%20ARROW%20and%20labels%20%3D%20substrait%20AND%20(status%20%3D%20Open%20OR%20status%20%3D%20%22In%20Progress%22)
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[GitHub] [arrow] westonpace commented on issue #12942: [c++][substrait]Couldn't find a file named expression.pb
Posted by GitBox <gi...@apache.org>.
westonpace commented on issue #12942:
URL: https://github.com/apache/arrow/issues/12942#issuecomment-1105829402
If you are referring to the flatbuffers-based serializer (`ir_consumer.h`/`ir_consumer.cc`) then I'm pretty sure this has been discontinued in favor of Substrait.
So you should use Substrait.
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[GitHub] [arrow] westonpace commented on issue #12942: [c++][substrait]Couldn't find a file named expression.pb
Posted by GitBox <gi...@apache.org>.
westonpace commented on issue #12942:
URL: https://github.com/apache/arrow/issues/12942#issuecomment-1105003478
It should be downloaded automatically as part of the build: https://github.com/apache/arrow/blob/master/cpp/cmake_modules/ThirdpartyToolchain.cmake#L1635-L1706
It's generated code from a .proto file which comes from the Substrait repository (an old version at the moment): https://github.com/substrait-io/substrait/blob/1210195692df721e05a9e9bd34fd7b9ae83dd35c/proto/substrait/expression.proto
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[GitHub] [arrow] HaoChen-ch commented on issue #12942: [c++][substrait]Couldn't find a file named expression.pb
Posted by GitBox <gi...@apache.org>.
HaoChen-ch commented on issue #12942:
URL: https://github.com/apache/arrow/issues/12942#issuecomment-1105197244
Thanks very much for the reply.
> It should be downloaded automatically as part of the build: https://github.com/apache/arrow/blob/master/cpp/cmake_modules/ThirdpartyToolchain.cmake#L1635-L1706
>
> It's generated code from a .proto file which comes from the Substrait repository (an old version at the moment): https://github.com/substrait-io/substrait/blob/1210195692df721e05a9e9bd34fd7b9ae83dd35c/proto/substrait/expression.proto
>
> The file in Substrait has since moved into algebra.proto
@westonpace Thanks very much for the reply. I ran the arrow engine successfully with your help.And I plan to do some work with arrow,First I need to choose a IR to describe computation on Arrow data,I have read the email https://www.mail-archive.com/dev@arrow.apache.org/msg24388.html .And I am confused about which one to choose , substrait or Arrow Compute IR.Could you give me some advice?
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[GitHub] [arrow] HaoChen-ch commented on issue #12942: [c++][substrait]Couldn't find a file named expression.pb
Posted by GitBox <gi...@apache.org>.
HaoChen-ch commented on issue #12942:
URL: https://github.com/apache/arrow/issues/12942#issuecomment-1105927532
Thanks very much for the reply.I get it.
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[GitHub] [arrow] HaoChen-ch closed issue #12942: [c++][substrait]Couldn't find a file named expression.pb
Posted by GitBox <gi...@apache.org>.
HaoChen-ch closed issue #12942: [c++][substrait]Couldn't find a file named expression.pb
URL: https://github.com/apache/arrow/issues/12942
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