Neal Richardson created ARROW-9697: -------------------------------------- Summary: [C++][Dataset] num_rows method for Dataset/Scanner Key: ARROW-9697 URL: https://issues.apache.org/jira/browse/ARROW-9697 Project: Apache Arrow Issue Type: New Feature Components: C++ Reporter: Neal Richardson Fix For: 2.0.0
Something like Scanner::ToTable except first Project to keep 0 columns, and for each record batch, grab the num_rows. Then sum the resulting vector. -- This message was sent by Atlassian Jira (v8.3.4#803005)