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NDB Cluster: Data nodes added while the cluster was running in single user mode were all assigned node ID 0, which could later cause multiple node failures. Adding of nodes in single user mode is no longer possible. (Bug#20395) 数据挖掘论坛
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NDB Cluster: Attempting to create an NDB table on a MySQL with an existing non-Cluster table with the same name in the same database could result in data loss or corruption. MySQL now issues a warning when a SHOW TABLES or other statement causing table discovery finds such a table. (Bug#21378) 数据挖掘工具
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NDB Cluster (NDB API): Inacivity timeouts for scans were not correctly handled. (Bug#23107) 数据挖掘交友
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NDB Cluster (NDB API): Attempting to read a nonexistent tuple using Commit mode for NdbTransaction::execute() caused node failures. (Bug#22672)
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NDB Cluster (NDB API): Scans closed before being executed were still placed in the send queue. (Bug#21941) 数据挖掘实验室
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NDB Cluster (NDB API): The NdbOperation::getBlobHandle() method, when called with the name of a nonexistent column, caused a segmentation fault. (Bug#21036) 数据挖掘论坛
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NDB Cluster: A problem with takeover during a system restart caused ordered indexes to be rebuilt incorrectly. (Bug#15303) 数据挖掘实验室
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NDB Cluster: The ndb_config utility did not perform host lookups correctly when using the --host option. (Bug#17582) 数据挖掘实验室
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NDB Cluster: The ndb_config utility did not perform host lookups correctly when using the --host option (Bug#17582) 数据挖掘工具
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NDB Cluster: The error returned by the cluster when too many nodes were defined did not make clear the nature of the problem. (Bug#19045)
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NDB Cluster: ndb_mgm -e show | head would hang after displaying the first 10 lines of output. (Bug#19047) 数据挖掘工具
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NDB Cluster: In rare situations with resource shortages, a crash could result from insufficient IndexScanOperations. (Bug#19198)
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NDB Cluster: ndb_restore did not always make clear that it had recovered successfully from temporary errors while restoring a cluster backup. (Bug#19651)
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NDB Cluster: Error messages given when trying to make online changes parameters such as NoOfReplicas thast can only be changed via a complete shutdown and restart of the cluster did not indicate the true nature of the problem. (Bug#19787) 数据挖掘论坛
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NDB Cluster: Following the restart of an MGM node, the Cluster management client did not automatically reconnect. (Bug#19873)
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NDB Cluster: In some cases where SELECT COUNT(*) from an NDB table should have yielded an error, MAX_INT was returned instead. (Bug#19914) 数据挖掘实验室
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NDB Cluster (NDB API): When multiple processes or threads in parallel performed the same ordered scan with exclusive lock and updating the retrieved records, the scan could skip some records, which were not updated as a result. (Bug#20446)
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NDB Cluster: Using an invalid node ID with the management client STOP command could cause ndb_mgm to hang. (Bug#20575)
数据挖掘工具
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NDB Cluster: Under some circumstances, local checkpointing would hang, keeping any unstarted nodes from being started. (Bug#20895)
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NDB Cluster: Condition pushdown did not work correctly with DATETIME columns. (Bug#21056)
数据挖掘研究院
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NDB Cluster: When inserting a row into an NDB table with a duplicate value for a non-primary unique key, the error issued would reference the wrong key. (Bug#21072)
数据挖掘论坛
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NDB Cluster: Cluster logs were not rotated following the first rotation cycle. (Bug#21345) 数据挖掘论坛
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NDB Cluster: The ndb_mgm management client did not set the exit status on errors, always returning 0 instead. (Bug#21530) 数据挖掘论坛
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NDB Cluster: Partition distribution keys were updated only for the primary and starting replicas during node recovery. This could lead to node failure recovery for clusters having an odd number of replicas. (Bug#21535)
数据挖掘实验室
Note: We recommend values for NumberOfReplicas that are even powers of 2, for best results.
数据挖掘实验室
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NDB Cluster: The output for the --help option used with NDB executable programs (ndbd, ndb_mgm, ndb_restore, ndb_config, and so on) referred to the Ndb.cfg file, instead of my.cnf. (Bug#21585)
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NDB Cluster: The node recovery algorithm was missing a version check for tables in the ALTER_TABLE_COMMITTED state (as opposed to the TABLE_ADD_COMMITTED state, which has the version check). This could cause inconsistent schemas across nodes following node recovery. (Bug#21756) 数据挖掘工具
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NDB Cluster: A scan timeout returned Error 4028 (Node failure caused abort of transaction) instead of Error 4008 (Node failure caused abort of transaction...). (Bug#21799) 数据挖掘交友
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NDB Cluster: The --help output from NDB binaries did not include file-related options. (Bug#21994)
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NDB Cluster: Multiple node restarts in rapid succession could cause a system restart to fail (Bug#22892), or induce a race condition (Bug#23210).
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NDB Cluster: If a node restart could not be performed from the REDO log, no node takeover took place. This could cause partitions to be left empty during a system restart. (Bug#22893) 数据挖掘实验室
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NDB Cluster: INSERT ... ON DUPLICATE KEY UPDATE on an NDB table could lead to deadlocks and memory leaks. (Bug#23200) 数据挖掘论坛
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NDB Cluster: The management client command ALL DUMP 1000 would cause the cluster to crash if data nodes were connected to the cluster but not yret fully started. (Bug#23203) 数据挖掘实验室
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NDB Cluster: Cluster backups would fail when there were more than 2048 schema objects in the cluster. (Bug#23499)
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NDB Cluster: Restoring a cluster failed if there were any tables with 128 or more columns. (Bug#23502) 数据挖掘交友
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A stored procedure, executed from a connection using a binary character set, and which wrote multi-byte data, would write incorrectly escaped entries to the binary log. This caused syntax errors, and caused replication to fail. (Bug#23619)
数据挖掘论坛
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The internal SQL interpreter of InnoDB placed an unnecessary lock on the supremum record when innodb_locks_unsafe_for_binlog=1. This caused an assertion failure when InnoDB was built with debugging enabled. (Bug#23769)
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If a table contains an AUTO_INCREMENT column, inserting into an insertable view on the table that does not include the AUTO_INCREMENT column should not change the value of LAST_INSERT_ID(), because the side effects of inserting default values into columns not part of the view should not be visible. MySQL was incorrectly setting LAST_INSERT_ID() to zero. (Bug#22584) 数据挖掘论坛
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M % 0NULL, but (M % 0) IS NULL
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Within a stored routine, a view definition cannot refer to routine parameters or local variables. However, an error did not occur until the routine was called. Now it occurs during parsing of the routine creation statement. (Bug#20953) 数据挖掘论坛
Note: A side effect of this fix is that if you have already created such routines, and error will occur if you execute SHOW CREATE PROCEDURE or SHOW CREATE FUNCTION. You should drop these routines because they are erroneous. 数据挖掘实验室
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A client library crash was caused by executing a statement such as SELECT * FROM t1 PROCEDURE ANALYSE() using a server side cursor on a table t1 that does not have the same number of columns as the output from PROCEDURE ANALYSE(). (Bug#17039)
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mysql did not check for errors when fetching data during result set printing. (Bug#22913)
数据挖掘实验室
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Adding a day, month, or year interval to a DATE value produced a DATE, but adding a week interval produced a DATETIME value. Now all produce a DATE value. (Bug#21811) 数据挖掘论坛
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The column default value in the output from SHOW COLUMNS or SELECT FROM INFORMATION_SCHEMA.COLUMNS was truncated to 64 characters. (Bug#23037)
数据挖掘论坛
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For not-yet-authenticated connections, the Time column in SHOW PROCESSLIST was a random value rather than NULL. (Bug#23379)
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The Host column in SHOW PROCESSLIST output was blank when the server was started with the --skip-grant-tables option. (Bug#22728)
数据挖掘实验室
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The Handler_rollback status variable sometimes was incremented when no rollback had taken place. (Bug#22728)
数据挖掘交友
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Within a prepared statement, SELECT (COUNT(*) = 1) (or similar use of other aggregate functions) did not return the correct result for statement re-execution. (Bug#21354)
数据挖掘研究院
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Lack of validation for input and output TIME values resulted in several problems: SEC_TO_TIME() within subqueries incorrectly clipped large values; SEC_TO_TIME() treated BIGINT UNSIGNED values as signed; only truncation warnings were produced when both truncation and out-of-range TIME values occurred. (Bug#11655, Bug#20927)
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Range searches on columns with an index prefix could miss records. (Bug#20732) 数据挖掘交友
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With SQL_MODE=TRADITIONAL, MySQL incorrectly aborted on warnings within stored routines and triggers. (Bug#20028) 数据挖掘实验室
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In mysql, invoking connect or \r with very long db_name or host_name parameters caused buffer overflow. (Bug#20894) 数据挖掘研究院
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mysqldump --xml produced invalid XML for BLOB data. (Bug#19745)
数据挖掘论坛
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For a debug server, a reference to an undefined user variable in a prepared statment executed with EXECUTE caused an assertion failure. (Bug#19356) 数据挖掘工具
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Within a trigger for a base table, selecting from a view on that base table failed. (Bug#19111) 数据挖掘研究院
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DELETE IGNORE could hang for foreign key parent deletes. (Bug#18819)
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Transient errors in replication from master to slave may trigger multiple Got fatal error 1236: 'binlog truncated in the middle of event' errors on the slave. (Bug#4053)
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The value of the warning_count system variable was not being calculated correctly (also affecting SHOW COUNT(*) WARNINGS). (Bug#19024)
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InnoDB exhibited thread thrashing with more than 50 concurrent connections under an update-intensive workload. (Bug#22868) 数据挖掘工具
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InnoDB showed substandard performance with multiple queries running concurrently. (Bug#15815)
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There was a race condition in the InnoDB fil_flush_file_spaces() function. (Bug#24089) 数据挖掘交友
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FROM_UNIXTIME() did not accept arguments up to POWER(2,31)-1, which it had previously. (Bug#9191)
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Some yaSSL-related memory leaks detected by Valgrind were fixed. (Bug#23981)
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If COMPRESS() returned NULL, subsequent invocations of COMPRESS() within a result set or within a trigger also returned NULL. (Bug#23254) 数据挖掘交友
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mysql would lose its connection to the server if its standard output was not writable. (Bug#17583) 数据挖掘研究院
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mysql-test-run did not work correctly for RPM-based installations. (Bug#17194)
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The return value from my_seek() was ignored. (Bug#22828) 数据挖掘实验室
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Use of PREPARE with a CREATE PROCEDURE statement that contained a syntax error caused a server crash. (Bug#21868)
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Use of a DES-encrypted SSL certificate file caused a server crash. (Bug#21868) 数据挖掘实验室
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Column names were not quoted properly for replicated views. (Bug#19736)
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InnoDB used table locks (not row locks) within stored functions. (Bug#18077)
数据挖掘实验室
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Statements such as DROP PROCEDURE and DROP VIEW were written to the binary log too late due to a race condition. (Bug#14262)
数据挖掘交友
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MySQL would fail to build on the Alpha platform. (Bug#23256) 数据挖掘论坛
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The optimizer failed to use equality propagation for BETWEEN and IN predicates with string arguments. (Bug#22753) 数据挖掘论坛
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The optimizer used the ref join type rather than eq_ref for a simple join on strings. (Bug#22367)
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The WITH CHECK OPTION for a view failed to prevent storing invalid column values for UPDATE statements. (Bug#16813)
数据挖掘交友
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A literal string in a GROUP BY clause could be interpreted as a column name. (Bug#14019) 数据挖掘交友
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Some queries that used MAX() and GROUP BY could incorrectly return an empty result. (Bug#22342) 数据挖掘论坛
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WITH ROLLUP could group unequal values. (Bug#20825)
数据挖掘研究院
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Use of a subquery that invoked a function in the column list of the outer query resulted in a memory leak. (Bug#21798)
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LIKE searches failed for indexed utf8 character columns. (Bug#20471) 数据挖掘研究院
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FLUSH INSTANCES in Instance Manager triggered an assertion failure. (Bug#19368) 数据挖掘交友
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ALTER TABLE was not able to rename a view. (Bug#14959) 数据挖掘工具
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Entries in the slow query log could have an incorrect Rows_examined value. (Bug#12240)
数据挖掘论坛
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Insufficient memory (myisam_sort_buffer_size) could cause a server crash for several operations on MyISAM tables: repair table, create index by sort, repair by sort, parallel repair, bulk insert. (Bug#23175)
数据挖掘实验室
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OPTIMIZE TABLE with myisam_repair_threads > 1 could result in MyISAM table corruption. (Bug#8283) 数据挖掘论坛
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Selecting from a MERGE table could result in a server crash if the underlying tables had fewer indexes than the MERGE table itself. (Bug#22937)
数据挖掘论坛
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A locking safety check in InnoDB reported a spurious error stored_select_lock_type is 0 inside ::start_stmt() for INSERT ... SELECT statements in innodb_locks_unsafe_for_binlog mode. The safety check was removed. (Bug#10746)
数据挖掘研究院
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For multiple-table UPDATE statements, storage engines were not notified of duplicate-key errors. (Bug#21381) 数据挖掘交友
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Incorrect results could be obtained from re-execution of a parametrized prepared statement or a stored routine with a SELECT that uses LEFT JOIN with a second table having only one row. (Bug#21081)
数据挖掘论坛
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An UPDATE that referred to a key column in the WHERE clause and activated a trigger that modified the column resulted in a loop. (Bug#20670) 数据挖掘交友
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Creating a TEMPORARY table with the same name as an existing table that was locked by another client could result in a lock conflict for DROP TEMPORARY TABLE because the server unnecessarily tried to acquire a name lock. (Bug#21096)
数据挖掘交友
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After FLUSH TABLES WITH READ LOCK followed by UNLOCK TABLES, attempts to drop or alter a stored routine failed with an error that the routine did not exist, and attempts to execute the routine failed with a lock conflict error. (Bug#21414) 数据挖掘论坛
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SHOW VARIABLES truncated the Value field to 256 characters. (Bug#20862)
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Instance Manager didn't close the client socket file when starting a new mysqld instance. mysqld inherited the socket, causing clients connected to Instance Manager to hang. (Bug#12751)
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Instance Manager had a race condition involving mysqld PID file removal. (Bug#22379)
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It was possible for a stored routine with a non-latin1 name to cause a stack overrun. (Bug#21311) 数据挖掘研究院
