With querystats enabled, mysqld crashes when process a query

Build tested: Github source 1.1.0

/root/columnstore/mariadb-columnstore-server
commit 6ed33d194819aaa5f2521c888639f44546fb7ce2
Merge: 97284ea 770537e
Author: Andrew Hutchings <andrew@linuxjedi.co.uk>
Date: Thu Aug 3 20:54:13 2017 +0100

Merge pull request #66 from mariadb-corporation/MCOL-684

MCOL-684 call fix_fields for parameters in PREPARED statements

/root/columnstore/mariadb-columnstore-server/mariadb-columnstore-engine
commit d9233bde4932bd8d621888e33a38f34c181445b4
Author: David Hill <david.hill@mariadb.com>
Date: Tue Aug 15 20:41:26 2017 +0000

moved CONFIGURE option to bottom of list

diff --git a/oam/oamcpp/liboamcpp.h b/oam/oamcpp/liboamcpp.h
index 6b24a30..8c0e3ed 100644
— a/oam/oamcpp/liboamcpp.h
+++ b/oam/oamcpp/liboamcpp.h
@@ -558,7 +558,6 @@ namespace oam
HEARTBEAT_SEND,
PROCBUILDSYSTEMTABLES,
LOCALHEARTBEAT,

• CONFIGURE,
  RECONFIGURE,
  PROCESSRESTART,
  GETSOFTWAREINFO,
  @@ -580,7 +579,8 @@ namespace oam
  MASTERDIST,
  DISABLEREP,
  PROCGLUSTERASSIGN,
• PROCGLUSTERUNASSIGN
  + PROCGLUSTERUNASSIGN,
  + CONFIGURE
  };

This issue was identified when testing MCOL-400.

To reproduce the issue, just enable cross-engine-join and querystats in Columnstore.xml