Cancel query evaluation

[Google Code Exporter]

It should be possible to stop the evaluation of long-running queries.
To do this we need an additions
- to the REST interface and
- to the WebUI to cancel query evaluation and we need to be able
- to keep the runtime from using more resources after the query has been 
cancelled.
We also need to decide, if we also want to interrupt statements that change the 
database (I think we should do this as well, but we need to be specify the 
transacional semantics of this).

Original issue reported on code.google.com by [e-mail] on 10 Jun 2013 at 5:05

[Google Code Exporter]

This is a Asterix issue, not a Hyracks issue.

Original comment by [e-mail] on 10 Jun 2013 at 5:07

• Changed state: Invalid