[jira] [Commented] (ARROW-18160) [C++] Scanner slicing large row groups leads to inefficient RAM usage

[ https://issues.apache.org/jira/browse/ARROW-18160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17623958#comment-17623958 ] Weston Pace commented on ARROW-18160: - Oh. Yes, that is copying. Sorry, didn't rea

[jira] [Commented] (ARROW-18160) [C++] Scanner slicing large row groups leads to inefficient RAM usage

[ https://issues.apache.org/jira/browse/ARROW-18160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17623957#comment-17623957 ] Weston Pace commented on ARROW-18160: - Well, there is a somewhat drastic approach, w

[jira] [Commented] (ARROW-18160) [C++] Scanner slicing large row groups leads to inefficient RAM usage

[ https://issues.apache.org/jira/browse/ARROW-18160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17623926#comment-17623926 ] David Li commented on ARROW-18160: -- The only way (without sub-group reads) is copying,