Performance Schema Tables Changes with MySQL

MySQL 5.5.6 RC With Security Fixes

Jessica Thornsby

Performance Schema interface reductions with latest MySQL RC.

A Release Candidate of MySQL 5.5.6 is out now!

This release reduces the overhead for the Performance Schema
interface and the SHA2() function now returns a character string
with the connection character set and collation. Previously, the
SHA2() function returned a binary string. When it comes to
Performance Schema tables, there have been a number of changes. The
SETUP_OBJECTS table has been removed, the PROCESSLIST table has
been renamed to THREADS, and the EVENTS_WAITS_SUMMARY_BY_EVENT_NAME
table also has a new name:
EVENTS_WAITS_SUMMARY_GLOBAL_BY_EVENT_NAME.

There are also a number of security fixes, including addressing
a malformed argument to the BINLOG statement, which sometimes
resulted in a server crash.

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