Bug #11766851 QUERYING I_S.PARTITIONS CHANGES THE CARDINALITY OF THE               PARTITIONS.
Bug #11766851 QUERYING I_S.PARTITIONS CHANGES THE CARDINALITY OF THE
              PARTITIONS.

ANALYSIS
--------
Whenever we query I_S.partitions,
ha_partition::get_dynamic_partition_info()
is called which resets the cardinality 
according to the number of rows in last
partition.

Fix
---
When we call get_dynamic_partition_info() 
avoid passing the flag HA_STATUS_CONST
to info() since HA_STATUS_CONST should 
ideally not be called for per partition.

[Approved by mattiasj rb#2830 ]


ollie314/server,davidl-zend/zenddbi,natsys/mariadb_10.2,ollie314/server,flynn1973/mariadb-aix,natsys/mariadb_10.2,flynn1973/mariadb-aix,ollie314/server,natsys/mariadb_10.2,davidl-zend/zenddbi,davidl-zend/zenddbi,flynn1973/mariadb-aix,ollie314/server,ollie314/server,flynn1973/mariadb-aix,davidl-zend/zenddbi,davidl-zend/zenddbi,ollie314/server,ollie314/server,natsys/mariadb_10.2,ollie314/server,ollie314/server,flynn1973/mariadb-aix,davidl-zend/zenddbi,flynn1973/mariadb-aix,natsys/mariadb_10.2,flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,flynn1973/mariadb-aix,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,slanterns/server,natsys/mariadb_10.2,davidl-zend/zenddbi,flynn1973/mariadb-aix,davidl-zend/zenddbi,natsys/mariadb_10.2,davidl-zend/zenddbi,davidl-zend/zenddbi,davidl-zend/zenddbi,natsys/mariadb_10.2,natsys/mariadb_10.2,ollie314/server