Hi all, To help us reach 1.0 with as complete and thoroughly tested implementations of the Arrow format, I've surveyed our integration test suite and open issues and collected information here: https://docs.google.com/spreadsheets/d/1Yu68rn2XMBpAArUfCOP9LC7uHb06CQrtqKE5vQ4bQx4/edit#gid=782909347
I'll happily grant edit privileges on the doc to anyone who requests. This replaces the content on https://cwiki.apache.org/confluence/display/ARROW/Columnar+Format+1.0+Milestone, which was a bit stale. I carried over some notes from there as appropriate, but most were no longer accurate. Hopefully this new document helps us revise our understanding of what is implemented and makes clear what's left to do. Most of the outstanding issues (at least for C++ and Java) are already ticketed in Jira and marked as blockers for 1.0, but let me know if you see something missing. Neal
