DDL Commands

Command type and object type affect the scope of Data Definition Language (DDL) commands in a multiplex.

• DDL Command Scope
  DDL commands may be propagated to all nodes or be local to the executing node.
• Role Restriction
  Some statements are restricted to nodes of certain roles.
• Dbspace Updates in Multiplex
  Dbspace updates on multiplex differ slightly from those on simplex databases.
• Global Transaction Resiliency
  DML read-write transactions on multiplex writer nodes survive temporary communication failures between coordinator and writer nodes and temporary failure of the coordinator due to server failure, shutdown or failover.