Redash has a button to cancel a query but it doesn't forward the command to Presto as PyHive doesn't support it.

This is tracked on https://github.com/dropbox/PyHive/issues/2

This fix looked pretty straightforward so I submitted a PR to PyHive: https://github.com/dropbox/PyHive/pull/80

As mentioned in IRC we are currently using a fork of PyHive so it would be great if you could submit a PR against our fork. Extra points for submitting a PR with our changes upstream.

Submitted a PR with my changes against our downstream version. What should perhaps happen is the following: 1. Approve PR #3 [0] to bring our downstream version up-to-date 2. Rebase PR #2 (query cancellation) [1] and branch "pretty" on top of changes 3. Complete code review and merge PR #2 4. Merge branches "pretty" and "presto_cancel" and deploy that for our own use 5. Submit two PRs to upstream code with our changes [0] https://github.com/vitillo/PyHive/pull/3 [1] https://github.com/vitillo/PyHive/pull/2

We have a branch [0] that has both query cancellation and pretty printing, which we will use for our own deployment. I have submitted two PRs to PyHive, with both of those changes. Next step is update our version of re:dash to support cancellation. [0] https://github.com/vitillo/PyHive/tree/deployment

Deployment [0] commit log has been cleaned. [0] https://github.com/vitillo/PyHive/tree/deployment

Changes deployed and working!