[ARROW-12369] [C++][Dataset] Scanner::TakeRows should push down the query if possible

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: C++
• Labels: dataset datasets
• Assignee: Unassigned
• Reporter: David Li
• Created: 13/Apr/21 19:33
• Updated: 13/Apr/21 19:33

Description

ARROW-11797 introduces Scanner::TakeRows but this doesn't push down the query; it could perhaps be made to do so. 

Issue Links

• relates to: ARROW-11797 [C++][Dataset] Provide Scanner methods to yield/visit scanned batches