Backport WL#4098 from 6.0.
Backport WL#4098 from 6.0.

The value was changed from 1024 to 2048,
because 1024 is already used.

Original revision:
------------------------------------------------------------
revno: 2476.657.259
committer: 764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@bk-internal.mysql.com
timestamp: Tue 2008-01-29 19:32:44 +0100
message:
  WL#4098: Add a status flag for slow queries
  
  Add new result set status flag SERVER_QUERY_WAS_SLOW in mysql_com.h.
  
  There is no server-side implementation to actually set this flag at this
  time.  This patch simply defines the interface so that applications can
  make use of it.  See the worklog for background.
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ollie314/server,flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,davidl-zend/zenddbi,ollie314/server,davidl-zend/zenddbi,flynn1973/mariadb-aix,davidl-zend/zenddbi,ollie314/server,ollie314/server,davidl-zend/zenddbi,davidl-zend/zenddbi,flynn1973/mariadb-aix,flynn1973/mariadb-aix,flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,flynn1973/mariadb-aix,ollie314/server,davidl-zend/zenddbi,slanterns/server,ollie314/server,ollie314/server,davidl-zend/zenddbi,natsys/mariadb_10.2,flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,flynn1973/mariadb-aix,davidl-zend/zenddbi,natsys/mariadb_10.2,davidl-zend/zenddbi,davidl-zend/zenddbi,davidl-zend/zenddbi,ollie314/server,ollie314/server,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,ollie314/server