Fix bug related with queries to dead backends#10

Merged

ildus merged 2 commits intopostgrespro:masterfrom

CherkashinSergey:fix_segfault

Nov 1, 2018

Commits on Oct 31, 2018

Fix bug
CherkashinSergey
committed

Commits on Nov 1, 2018

Additional check of process state
CherkashinSergey
committed