[jira] [Created] (ARROW-17648) [C++] Add ScanOptions to support projection and filter in ToProto Read

["Vibhatha Lakmal Abeykoon (Jira)" <ji...@apache.org>]

Vibhatha Lakmal Abeykoon created ARROW-17648:
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             Summary: [C++] Add ScanOptions to support projection and filter in ToProto Read
                 Key: ARROW-17648
                 URL: https://issues.apache.org/jira/browse/ARROW-17648
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Vibhatha Lakmal Abeykoon
            Assignee: Vibhatha Lakmal Abeykoon


In the current ToProto the `ScanOptions` are not fully supported, the `project` and `filter` support needs to be added.

Ref:

 
{code:java}
Result<std::unique_ptr<substrait::ReadRel>> ScanRelationConverter(const std::shared_ptr<Schema>& schema, const compute::Declaration& declaration,    ExtensionSet* ext_set, const ConversionOptions& conversion_options) {  

auto read_rel = make_unique<substrait::ReadRel>();
const auto& scan_node_options = checked_cast<const dataset::ScanNodeOptions&>(*declaration.options);  
auto dataset = dynamic_cast<dataset::FileSystemDataset*>(scan_node_options.dataset.get()); 
// TODO handle here{code}
 

 



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