Details
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Improvement
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Status: Open
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Major
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Resolution: Unresolved
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None
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None
Description
The Substrait C++ consumer does not currently handle pushdown projection in the read relation.
For some formats we can push some of this (e.g. column selection) down into the reader.
For the parts we can't push down we can use a project node after the read.
Attachments
Issue Links
- is related to
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ARROW-17229 [C++] ReadRel is translated to a source node that emits unexpected fields
- Open