Hi all, I started drafting a header file for a query-wide QueryExecState class here: https://gerrit.cloudera.org/#/c/3686/2
It's not much and I couldn't figure out how much of the overall changes needed for RPC batching should be included in this change. Most notably we might want to replace FragmentExecState in FragmentMgr (now QueryExecMgr) with QueryExecState altogether and drive execution from that class. On the other hand keeping the QueryExecState as simple as possible for now would make the change less intrusive. I'd be glad for feedback on this first draft. Thanks, Lars
