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MySQL 5.6 Reference Manual  /  ...  /  Restrictions When Using the Embedded MySQL Server

23.7.2 Restrictions When Using the Embedded MySQL Server

The embedded server has the following limitations:

  • No user-defined functions (UDFs).

  • No stack trace on core dump.

  • You cannot set this up as a master or a slave (no replication).

  • Very large result sets may be unusable on low memory systems.

  • You cannot connect to an embedded server from an outside process with sockets or TCP/IP. However, you can connect to an intermediate application, which in turn can connect to an embedded server on the behalf of a remote client or outside process.

  • InnoDB is not reentrant in the embedded server and cannot be used for multiple connections, either successively or simultaneously.

  • The Event Scheduler is not available. Because of this, the event_scheduler system variable is disabled.

Some of these limitations can be changed by editing the mysql_embed.h include file and recompiling MySQL.


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