Cluster API: Important Change: Because NDB_LE_MemoryUsage.page_size_kb shows memory page sizes in bytes rather than kilobytes, it has been renamed to page_size_bytes. The name page_size_kb is now deprecated and thus subject to removal in a future release, although it currently remains supported for reasons of backward compatibility. See The Ndb_logevent_type Type, for more information about NDB_LE_MemoryUsage. (Bug#30271)

The ndbd and ndb_mgmd man pages have been reclassified from volume 1 to volume 8. (Bug#34642)

mysqltest now has mkdir and rmdir commands for creating and removing directories. (Bug#31004)

Performance: InnoDB adaptive hash latches could be held too long during filesort operations, resulting in a server crash. Now the hash latch is released when a query on InnoDB tables performs a filesort. This eliminates the crash and may provide significant performance improvements on systems on which many queries using filesorts with temporary tables are being performed. (Bug#32149)

MySQL Cluster: When configured with NDB support, MySQL failed to compile using gcc 4.3 on 64bit FreeBSD systems. (Bug#34169)

MySQL Cluster: The failure of a DDL statement could sometimes lead to node failures when attempting to execute subsequent DDL statements. (Bug#34160)

MySQL Cluster: Extremely long SELECT statements (where the text of the statement was in excess of 50000 characters) against NDB tables returned empty results. (Bug#34107)

MySQL Cluster: A periodic failure to flush the send buffer by the NDB TCP transporter could cause a unnecessary delay of 10 ms between operations. (Bug#34005)

MySQL Cluster: When all data and SQL nodes in the cluster were shut down abnormally (that is, other than by using STOP in the cluster management client), ndb_mgm used excessive amounts of CPU. (Bug#33237)

MySQL Cluster: Transaction atomicity was sometimes not preserved between reads and inserts under high loads. (Bug#31477)

MySQL Cluster: Numerous NDBCLUSTER test failures occurred in builds compiled using icc on IA64 platforms. (Bug#31239)

MySQL Cluster: Having tables with a great many columns could cause Cluster backups to fail. (Bug#30172)

MySQL Cluster: Issuing an INSERT ... ON DUPLICATE KEY UPDATE concurrently with or following a TRUNCATE TABLE statement on an NDB table failed with NDB error 4350 Transaction already aborted. (Bug#29851)

MySQL Cluster: It was possible in config.ini to define cluster nodes having node IDs greater than the maximum allowed value. (Bug#28298)

Cluster API: When reading a BIT(64) value using NdbOperation:getValue(), 12 bytes were written to the buffer rather than the expected 8 bytes. (Bug#33750)

mysql_explain_log concatenated multiple-line statements, causing malformed results for statements that contained SQL comments beginning with --. (Bug#34339)

Executing an ALTER VIEW statement on a table crashed the server. (Bug#34337)

Passing anything other than an integer argument to a LIMIT clause in a prepared statement would fail. (This limitation was introduced to avoid replication problems; for example, replicating the statement with a string argument would cause a parse failure in the slave). Now, arguments to the LIMIT clause are converted to integer values, and these converted values are used when logging the statement. (Bug#33851)

An internal buffer in mysql was too short. Overextending it could cause stack problems or segmentation violations on some architectures. (This is not a problem that could be exploited to run arbitrary code.) (Bug#33841)

Large unsigned integers were improperly handled for prepared statements, resulting in truncation or conversion to negative numbers. (Bug#33798)

make_binary_distribution passed the --print-libgcc-file option to the C compiler, but this does not work with the ICC compiler. (Bug#33536)

When MySQL was built with OpenSSL, the SSL library was not properly initialized with information of which endpoint it was (server or client), causing connection failures. (Bug#33050)

Repeated creation and deletion of views within prepared statements could eventually crash the server. (Bug#32890)

See also Bug#34587.

Executing a prepared statement associated with a materialized cursor sent to the client a metadata packet with incorrect table and database names. The problem occurred because the server sent the name of the temporary table used by the cursor instead of the table name of the original table.

The same problem occured when selecting from a view, in which case the name of the table name was sent, rather than the name of the view. (Bug#32265)

SHOW STATUS caused a server crash if InnoDB had not been initialized. (Bug#32083)

The mysqld crash handler failed on Windows. (Bug#31745)

The MySQL preferences pane did not work to start or stop MySQL on Mac OS X 10.5 (Leopard). (Bug#28854)

For upgrading to a new major version using RPM packages (such as 4.1 to 5.0), if the installation procedure found an existing MySQL server running, it could fail to shut down the old server, but also erroneously removed the server's socket file. Now the procedure checks for an existing server package from a different vendor or major MySQL version. In such case, it refuses to install the server and recommends how to safely remove the old packages before installing the new ones. (Bug#28555)

mysqlhotcopy silently skipped databases with names consisting of two alphanumeric characters. (Bug#28460)

mysql did not use its completion table. Also, the table contained few entries. (Bug#24624)

mysql_config output did not include -lmygcc on some platforms when it was needed. (Bug#21158)