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mysql> use <<deliverwater>>;
ERROR 1049 (42000): Unknown database '<<deliverwater>>'
mysql> use deliverwater;
Database changed
mysql> set global optimizer_switch = 'derived_merge=OFF';
Query OK, 0 rows affected (0.00 sec)

mysql> use deliverwater;set global optimizer_switch = 'derived_merge=OFF';
Database changed
Query OK, 0 rows affected (0.00 sec)

mysql> use deliverwater;set global optimizer_switch = 'derived_merge=OFF';update the .edmx;
Database changed
Query OK, 0 rows affected (0.00 sec)

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
mysql> select @@optimizer_switch\G
*************************** 1. row ***************************
@@optimizer_switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on,index_condition_pushdown=on,mrr=on,mrr_cost_based=on,block_nested_loop=on,batched_key_access=off,materialization=on,semijoin=on,loosescan=on,firstmatch=on,duplicateweedout=on,subquery_materialization_cost_based=on,use_index_extensions=on,condition_fanout_filter=on,derived_merge=on
1 row in set (0.00 sec)

mysql>