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Functionality added or changed:
KILL
statement now takes CONNECTION
and QUERY
variants. The first is the same as KILL
with no modifier (it
kills a given connection thread). The second kills only the statement
currently being executed by the connection.
TIMESTAMPADD()
and TIMESTAMPDIFF()
functions.
WEEK
and QUARTER
values as INTERVAL
arguments
for DATE_ADD()
and DATE_SUB()
functions.
SQL_MODE
, SQL_AUTO_IS_NULL
, FOREIGN_KEY_CHECKS
(that one was already replicated since 4.0.14 but here it's done more
efficiently: takes less space in the binary logs), UNIQUE_CHECKS
.
Other variables (like character sets, SQL_SELECT_LIMIT
...) will be
replicated in next 5.0.x releases.
Merge Index
optimization for OR
clauses.
See section 7.2.5 How MySQL Optimizes OR
Clauses.
SELECT INTO list_of_vars
, which can be of mixed,
that is, global and local type.
See section 18.1.6.3 SELECT ... INTO
Statement.
Bugs fixed: