MySQL Community Server 8.0.18 has been released, part 2/2
Posted by: Bjørn Munch
Date: October 14, 2019 07:39AM
Date: October 14, 2019 07:39AM
[This is part 2 of the announcement]
Edited 1 time(s). Last edit at 10/14/2019 07:46AM by Bjørn Munch.
Bugs Fixed, continued * Replication: If the group_replication_set_communication_protocol() UDF was used to set a communication protocol version that some group members did not support, the protocol change procedure was not stopped correctly. The issue has now been fixed. (Bug #30209596) * Replication: If the TCP connections used by Group Replication time out due to a lengthy network error, the group communication engine (XCom) cannot re-establish its local connection, requiring a restart of Group Replication on the instance (see Bug #25656508). Previously, attempting to stop Group Replication in this situation caused XCom to hang, preventing the restart. This issue has now been fixed so that XCom terminates correctly and Group Replication can be restarted to re-establish the local connection. (Bug #30132500) References: See also: Bug #22158368. * Replication: When the ANSI_QUOTES SQL mode was enabled, Group Replication returned an error when checking for the presence of MySQL Server's clone plugin to perform remote cloning operations for distributed recovery. The issue has now been fixed. (Bug #30099796) * Replication: The value of the default_table_encryption system variable must be the same on all members of a replication group and cannot be changed while Group Replication is running. Changing the value of the system variable was disallowed by Group Replication if a SET GLOBAL statement was used, but was incorrectly allowed if a SET PERSIST statement was used. (Bug #30031228) * Replication: If the group_replication_local_address setting for a member was changed and the member then rejoined the group, copies of the old local address were retained in some locations by the Group Communication System (GCS). The Group Replication local address is now fetched rather than cached whenever required. (Bug #29910699) * Replication: When Group Replication was using a remote cloning operation to provide transactions to a joining member, if the joining member was stopped during the operation, it did not shut down cleanly. (Bug #29902389) * Replication: The session value of the default_table_encryption system variable is replicated, so that replication slaves preserve the correct encryption setting for databases and tablespaces. For a replication channel where the table_encryption_privilege_check system variable is set to ON, the TABLE_ENCRYPTION_ADMIN privilege is required to apply events where the session value of default_table_encryption is changed. If this privilege had not been granted on the replication slave, replication stopped with an error in some situations where the required encryption setting for the event was actually the same as the slave's own default encryption setting, so the action ought to have worked. It was also possible for a statement with a different encryption setting from the slave to succeed when it ought not to have worked. The behaviors have now been corrected so that a replication slave without the TABLE_ENCRYPTION_ADMIN privilege is permitted to apply events that match its own default encryption setting, and is not requested to set the encryption setting unnecessarily, but is still subject to appropriate privilege checks if the event requires a different encryption setting. (Bug #29818605) * Replication: The timeout in seconds specified by the group_replication_unreachable_majority_timeout system variable was only checked every two seconds. The timeout is now checked every second so that odd-numbered values are respected. (Bug #29762005) * Replication: The input channel introduced for Group Replication in MySQL 8.0.14 uses a shared memory queue instead of a TCP socket for communication between the Group Communication System (GCS) component of Group Replication and the local group communication engine (XCom) instance. This input channel could not be established on SELinux installations, which meant members upgraded to MySQL 8.0.14 or higher were unable to rejoin the group. When Group Replication was started, the XCom instance temporarily opened a port from the ephemeral port range to allow GCS to establish a connection for the input channel, but on SELinux the mysqld process did not have permission to connect to this port. A workaround was to amend the SELinux policy to allow MySQL to connect to any port, but this reduced security. From MySQL 8.0.18, the issue has been fixed. XCom and GCS no longer use an ephemeral port to establish a connection for the input channel, but instead use the Group Replication communication port configured by the group_replication_local_address system variable, which must be permitted by SELinux (see Frequently Asked Questions (https://dev.mysql.com/doc/refman/8.0/en/group-replication-frequently-asked-questions.html)). (Bug #29742219, Bug#30087757) * Replication: A deadlock involving three threads could occur if a START SLAVE statement was issued to start the SQL thread on a slave while the SQL thread was still in the process of being stopped, and a request for the slave status was made at the same time. The issue has now been fixed by releasing a lock earlier while the SQL thread is being stopped. (Bug #29697588, Bug #95115) * Replication: Group Replication rejected server certificates whose Common Name value used a wildcard. The correct comparison method is now used. (Bug #29683275, Bug #95068) * Replication: It was possible for Group Replication's Group Communication System (GCS) to deliver messages from a member after STOP GROUP_REPLICATION had been issued and the member had gone to OFFLINE status in the group, resulting in an error. GCS now verifies that it belongs to a group before delivering a message. (Bug #29620900) * Replication: A locking issue in the WAIT_FOR_EXECUTED_GTID_SET() function could cause the server to hang in certain circumstances. The issue has now been corrected. (Bug #29550513) * Replication: A deadlock could occur if the value of the binlog_encryption system variable was changed while a START SLAVE statement was being executed. (Bug #29515210) * Replication: The heartbeat interval for a replication slave, which is controlled by the MASTER_HEARTBEAT_PERIOD option of the CHANGE MASTER TO statement, can be specified with a resolution in milliseconds. Previously, the master's binary log dump thread used a granularity of seconds to calculate whether a heartbeat signal should be sent to the slave, causing excessive heartbeat activity in the case of multiple skipped events. To remove this issue, all heartbeat-related calculations by the master and slave are now carried out using a granularity of nanoseconds for precision. Thanks to Facebook for the contribution. (Bug #29363787, Bug #94356) * Replication: Creation of a table with functional index creates a hidden generated column on the table, but this column did not always appear in the same position in the table, which meant that later adding a column (or columns) to the table might leave the hidden column in a different position as compared to an otherwise identical table already having the additional column or columns in a single CREATE TABLE statement. For example, this difference could be evident between two tables t1 and t2, with t1 created and then altered by the two statements CREATE TABLE t (a INT, INDEX ((a+1))) and ALTER TABLE t ADD COLUMN b INT, and t2 created using CREATE TABLE t2 (a INT, b INT, INDEX ((a+1))), even though SHOW CREATE TABLE t1 and SHOW CREATE TABLE t2 produced identical results (other than for the names of the tables). The issue just described could become problematic due to the fact that the internal definitions for the tables as described by Table_map_log_events in the binary log would differ. This meant that, if such a table was created using CREATE TABLE followed by ALTER TABLE on the master, and then a slave was deployed using mysqldump, the slave's version of the table would be created using a single CREATE TABLE statement, and subsequent replication of row events would then fail with an error due to mismatching types. This issue is fixed by forcing all hidden generated columns always to be located at the end of the list of columns, with multiple generated columns sorted by column name. If a new functional index part is added to the table, the new hidden column is inserted according to this rule. In addition, if the user creates a new column that is not a generated column, the column is always added before the first hidden column. Note The structure of tables affected by this change is not changed automatically during upgrade; this must done explicitly by executing ALTER TABLE. (Bug #29317684) * Replication: If a RESET MASTER statement was stopped during its execution, the binary log was not available for writes afterwards. (Bug #29125121) * Replication: Some threads that executed transient or minor Group Replication tasks, such as the delayed plugin initialization thread, were not visible in the Performance Schema threads table. (Bug #28930537) * Replication: The implementation of Group Replication's process when a member leaves the group due to an error has been standardised across components, to ensure that the member carries out exactly the same actions and issues the same error messages regardless of the original reason for leaving the group. (Bug #28866495) * Replication: On a multi-threaded slave with GTIDs in use and MASTER_AUTO_POSITION set to ON, following an unexpected halt the slave would attempt relay log recovery, which failed if relay logs had been lost, preventing replication from starting. However, this step was unnecessary as GTID auto-positioning can be used to restore any missing transactions. In a recovery situation, the slave now checks first whether MASTER_AUTO_POSITION is set to ON, and if it is, skips relay log recovery. (Bug #28830834, Bug #92882) * The keyring_aws plugin was not included in Commercial Docker RPM packages. (Bug #30199423) * When generating C source from SQL scripts, Some utf8-encoded characters were split across lines. Thanks to Przemysław Skibiński for the patch. (Bug #30152555, Bug #96449) * The ARRAY reserved word was listed as unreserved in the INFORMATION_SCHEMA.KEYWORDS table. (Bug #30134275, Bug #96416) * Some statements containing || produced a parse error even with the PIPES_AS_CONCAT SQL mode enabled. (Bug #30131161, Bug #96405) References: This issue is a regression of: Bug #29305022. * LOAD DATA statements incorrectly ignored the NO_AUTO_VALUE_ON_ZERO SQL mode if a SET clause was present. (Bug #30126375) * Automatic upgrades failed with a server exit if the thread_pool plugin was enabled. (Bug #30121742) * When determining whether to recalculate a materialized derived table for each execution, the uncacheability of the parent query block was used instead of the rematerialize flag on the table (currently only true for JSON_TABLE()). This could cause unneeded rematerializations, especially when making queries against non-merged views, leading to reduced performance. (Bug #30110851) * With an IGNORE clause, LOAD DATA should skip rows that produced a CHECK constraint violation and continue with the following rows, but it stopped with an error. (Bug #30084966, Bug #96296) * With sql_require_primary_key enabled, clone plugin initialization failed because it created two dynamic Performance Schema tables, which do not support indexes or primary keys. The effect of sql_require_primary_key is now limited to storage engines that can participate in replication (currently all storage engines except the Performance Schema) (Bug #30083300, Bug #96281) * Protobuf compilation failed on macOS. (Bug #30079536, Bug #96263) * For automatic upgrades, the audit_log plugin was not reloaded, causing auditing to start in legacy mode. (Bug #30068110) * In order to remove duplicate rows, the weedout optimization needs a unique identifier for each row, which is provided by the storage engine by calling handler::position(), but this function was not always called at the correct time, or was sometimes called when not needed. Issues regarding how and when to place such calls were the source of many bugs in optimizations. This fix moves the responsibility of calling handler::position() to the iterators, whose default implementations usually handle this task adequately on their own. (Bug #30060691) References: See also: Bug #29693294, Bug #30049217, Bug #30153695. * The server could exit due to mishandling a COM_PROCESS_INFO command. (Bug #30032302) * Warnings are normally generated when deprecated system variables are assigned a value, but this did not occur when persisted system variables were processed during server startup. (Bug #30030648) * With bind_address set to a value containing multiple addresses, setting host_cache_size=0 caused a server exit at client connect time. (Bug #30018958) * On Windows, Protobuf compilation failed for the Ninja build type. (Bug #30018894) * A mysqldump error-message buffer was too small, potentially leading to message truncation. (Bug #29999782, Bug #96074) * Last used auto-increment values instead of "next to be used" auto-increment values were cached while importing tables from MySQL 5.7 to MySQL 8.0 during an in-place upgrade, which resulted in any tables read from the table cache after upgrade having incorrect auto-increment values. (Bug #29996434) * When executing a prepared statement that used constant folding, it was possible to register a location for rollback which was not allocated on the MEMROOT, but rather on the stack, and so was no longer in scope. (Bug #29990693) References: See also: Bug #29939331. * A warning about ZEROFILL being deprecated was produced for CREATE TABLE ... AS and CREATE TABLE ... LIKE statements that created tables that contained a YEAR column. This could be confusing because the ZEROFILL attribute may only have been added implicitly to the YEAR column. To avoid confusion, the warning is no longer raised for such statements. (Bug #29961060) * A query using bitwise operators, such as in WHERE text_col < (int_col & int_col) AND int_col = -1, failed to return any rows as expected. (Bug #29957969) * Malformed resource group names in optimizer hints could lead to unexpected server behavior. (Bug #29955732) * EXPLAIN, when using FORMAT=TREE, did not show the same costs as with FORMAT=JSON. In particular, when using FORMAT=TREE, the cost calculated took into account eval_cost for joins, but not for base tables. (Bug #29953579) * For Solaris, mysqld.cc contained a prototype for memcntl() that is no longer needed. The prototype has been removed. (Bug #29953495, Bug #95971) * For Solaris, -DWITH_SSL=system did not work when compiling with GCC. (Bug #29953460, Bug #95970) * MySQL builds configured with -DWITHOUT_SERVER=1 failed. (Bug #29948728, Bug #95740) * The internal method Field_tiny::pack() did not always perform bounds checking as expected. (Bug #29948029) * Improper handling of plugin unloading could cause a server exit. (Bug #29941948) * The internal MEM_ROOT class did not handle all out-of-memory errors correctly. (Bug #29940846) * JSON_SCHEMA_VALIDATION_REPORT() did not distinguish between a JSON document that did not validate according to a JSON schema and a JSON document which was too deeply nested, which resulted in wrong behavior in some cases. (Bug #29940833) * Use of the <=> operator could yield incorrect results for comparisons involving very large constants. (Bug #29939331, Bug #95908) * For the keyring_aws plugin, some valid region values for the keyring_aws_region system variable were rejected. (Bug #29933758) * For debug builds, an assertion could be raised during UNION queries when computing the combined data type of a GEOMETRY column and SELECT * FROM (SELECT NULL). (Bug #29916900, Bug #95827) * For columns defined with the binary character set, SHOW CREATE TABLE could generate CREATE TABLE statements that produced a syntax error when executed. (Bug #29909573, Bug #95801) * Data dictionary APIs were added for fetching table names in a schema that use a specific storage engine, and for fetching table names in a schema that are created and hidden by the storage engine. The former is required by NDB, and the latter is required for DROP DATABASE operations. (Bug #29906844, Bug #95792) * mysqldump leaked memory when run with the --order-by-primary option. (Bug #29906736) * For queries involving functional indexes, EXPLAIN FORMAT=TREE printed the hidden column name instead of the indexed expression. (Bug #29904996) * For debug builds, CREATE TABLE ... IGNORE SELECT ... statements did not properly clean up the table state when the last row to be inserted was skipped due to a failed CHECK constraint. This could cause the next statement using the table to raise an assertion. (Bug #29903865) * MySQL did not handle execution of a recursive common table expression (CTE) correctly when the termination condition of the recursive query for this CTE had an IN predicate using another recursive CTE. (Bug #29899614) * Deserialization of serialized dictionary information (SDI) failed for a table with partitions residing in different tablespace files. (Bug #29898965) * For authentication using an LDAP authentication plugin, if the user DN portion was empty and group mapping was configured, authentication assigned an incorrect user DN and skipped the user search. (Bug #29897624) * Constraints defined without a name could in some cases cause a server exit. (Bug #29892876) * An in-place upgrade from MySQL 5.7 to MySQL 8.0 failed due a missing NDB tablespace. (Bug #29889869, Bug #30113440) * mysqlpump produced an error when run against a server older than MySQL 5.7. (Bug #29889253) * When Boost was downloaded, CMake configuration logic for determining the size of the downloaded file was incorrect, and could remove that file after a successful download operation. (Bug #29881279) * A possible integer overflow due to unsigned integer type casting could lead to later buffer overflow due to arbitrary size memory allocation. (Bug #29878914) * When the client character set was other than latin1, the server converted the string representation of a DECIMAL value from latin1 to the client character set. This conversion was not necessary, since all supported client character sets encode numbers in the same way as latin1, and so is no longer performed. (Bug #29875672) * The vio_description() debugging function was called in nondebug builds. (Bug #29871361) * The fix for a previous issue in MySQL 8.0.3 changed a test for whether an expression over constant DATE values could be cached from allowing any expressions except global variables to a blanket denial of all functions, regardless of whether they were over constants or not, which significantly impacted performance of related queries in which the optimizer needed to perform conversion of a string to a DATE value. This test has been reverted to its original form. (Bug #29871018) References: This issue is a regression of: Bug #85471, Bug #28576018. * The INFORMATION_SCHEMA can fetch dynamic table statistics from storage engines, but this did not work for partitioned tables. (Bug #29870919, Bug #95641) * Retrying a failed access-control statement could permit another thread to acquire a lock on the access-control cache during a window when metadata locks where released and reacquired, resulting in a deadlock. The locks are now not released during the retry operation. (Bug #29870899, Bug #95612) * An assertion could be raised if a user without the proper privilege attempted to enable the offline_mode system variable. (Bug #29849046) * Fedora packaging configuration put debug information for mysql_config_editor in the wrong package. (Bug #29841342) * Attempted use of a freed object during MeCab plugin initialization caused a segmentation fault. (Bug #29832534) * The function used to generate entropy for random passwords could sometimes not provide much entropy. (Bug #29808492) * With super_read_only enabled, the server could process DROP TABLESPACE improperly. (Bug #29802833) * The server did not handle a query with a left join containing a materialized semijoin correctly. (Bug #29800741) * For MySQL installed using RPM packages, an initialization script that tested server connectivity misbehaved if the client account authenticated using an LDAP authentication plugin. (Bug #29786782) * Improper locking during storage engine initialization could cause a server exit. (Bug #29782379) * On a GTID-enabled server, concurrent execution of DROP USER and a prepared statement that accessed a view could deadlock. (Bug #29772622) * When performing EXPLAIN FORMAT=JSON on a query of the form SELECT WHERE NOT EXISTS (SELECT FROM (derived_table) WHERE false_condition) involving an antijoin transformation, the subquery was eliminated but its own subqueries were moved up instead of being eliminated along with it. (Bug #29759277) References: See also: Bug #30017509. * An interrupted tablespace encryption operation caused a discrepancy between data dictionary and storage engine metadata, resulting in an assertion failure on a subsequent attempt to access the tablespace. (Bug #29756808) * Simultaneous execution of the event scheduler and DROP EVENT could result in lock acquisition hanging until lock wait timeout. (Bug #29742901, Bug #95223) * A query with a WHERE clause whose predicate contained a numeric value in scientific notation was not handled correctly. (Bug #29723340) * CHECK constraints were not enforced when a column took its default value from an expression. (Bug #29706689, Bug #95192) * When performing two sorts on the same table with no temporary table, both sorts tried to use the same buffer, resulting in a read out of bounds. This could occur when the same query used both DISTINCT and ORDER BY. (Bug #29699759) * When performing a weedout involving a sorted table, sorting was not done by row IDs. (Bug #29693294) * VS2019 produced compilation errors with debug compilation selected due to use of the /ZI flag. Now /Z7 is used instead. (Bug #29691691, Bug #95125) * In source distributions, these changes were made in relation to the DBUG package, to clean up old and unmaintained code in the dbug directory: + Moved dbug.cc to the mysys directory, removed the dbug library. + Removed unused functions in dbug.cc. + Removed the DBUG_LEAVE macro; no longer needed. + Wrapped the body of the DBUG_LOG macro in if _db_enabled_(), to avoid formatting of strings that likely will not be printed anyway. + Removed the dbug directory. (Bug #29680868, Bug #95082) * While allocating the reference item array, the count for any window functions was not taken into consideration. As a result, when expressions having window functions were split, the extra space needed to store the new item references was not properly allocated. (Bug #29672621) * Setting the collation of a user variable did not work correctly in all cases. (Bug #29665165) * Processing of WHERE clauses in SHOW statements was not performed consistently. (Bug #29664758) * If clauses to drop and add constraints were specified within the same ALTER TABLE statement, they were executed in incorrect order. (Bug #29652464) * EXPLAIN now shows when a result is being sorted by row ID. (Bug #29634196) * Unnecessary materialization is no longer performed in either of the following cases: + When performing a sort at the end of a join, such as for grouping, and the sorting does not make use of row IDs. + When materializing a derived table which is not to be read from more than once. (Bug #29634179) * CAST(arg AS FLOAT) did not returned the expected out-of-range error when arg was too small to be represented as a FLOAT value. (Bug #29621333) * Internal conversion of FLOAT values sometimes occurred at the wrong time, which could lead to excess precision in results. Consider the table created and populated as shown here: CREATE TABLE t(f FLOAT); INSERT INTO t VALUES (2.3); Prior to the fix, the query SELECT f, IF(f > 0, f, 0) FROM t against this table returned (2.3, 2.299999952316284) instead of (2.3, 2.3) as expected. (Bug #29621062) * log0meb.cc failed to compile with some build options. (Bug #29616525) * The client library could dereference a null pointer while fetching result set metadata from the server. (Bug #29597896) * A runtime error could occur for interval value checks when summing date and interval values. (Bug #29587536) * In builds with Undefined Behavior Sanitizer enabled, multiplication with -9223372036854775808 could produce warnings and incorrect results. (Bug #29581610) * During startup, the server attempted to write operations to the binary log that should not have been logged. (Bug #29557747, Bug #94835) * A statement of the form CREATE VIEW v1 AS SELECT * FROM table WHERE (constant IN (SELECT constant) IS UNKNOWN) led to an assertion. (Bug #29525304) References: This issue is a regression of: Bug #25466100. * On EL6, if a FIPS-enabled OpenSSL library was not available, attempting to enable FIPS mode could cause a server malfunction. (Bug #29519794) * SET PERSIST_ONLY can be used to persist some system variables that SET PERSIST cannot (due to the way variable settings occur). If such a variable is found in mysqld-auto.cnf at startup, the server now issues a warning and ignores the setting. (Bug #29511118) * The server did not properly aggregate a partial revoke and a schema-level privilege in some cases. (Bug #29484519) * For debug builds, ENUM or SET columns defined with a DEFAULT clause raised an assertion. (Bug #29480711) * MySQL Installer did not install OpenSSL DLL dependencies if the Development component was not selected. (Bug #29423421, Bug #94168, Bug #30199579, Bug #96573) * In READ UNCOMMITTED isolation level, a segmentation fault occurred under heavy load from memcached clients. An externally stored BLOB column that was being updated by one transaction was read by another transaction as having a NULL value and a non-zero data length. (Bug #29396364, Bug #93961) * On systems with working IPv6 address resolution, IPv6 socket creation failure at connect time resulted in a memory leak. (Bug #29374606, Bug #94384) * In replication scenarios, if multiple clients concurrently executed XA COMMIT or XA ROLLBACK statements that used the same XID value, replication inconsistency could occur. (Bug #29293279, Bug #94130) * Arguments for the TIMESTAMPADD() function could be reversed for prepared statements. (Bug #29268394) * The DEFAULT ROLE option for CREATE USER statements was not written to the binary log. (Bug #28948915, Bug #93252) * Starting the server from the command line with invalid memcached plugin variable settings caused the server to exit. (Bug #28575863) * The SET clause for LOAD DATA did not work to set GEOMETRY NOT NULL columns. (Bug #28460369, Bug #91893) * On Windows 8 and higher, the keyring_aws plugin was not able to communicate with Amazon KMS servers. (Bug #28377961) * INFORMATION_SCHEMA tables and SHOW COLUMNS could produce incorrect view column types when a query on the view had multiple query blocks combined with the UNION operator. (Bug #28278220, Bug #91486) * On Debian, long InnoDB recovery times at startup could cause systemd service startup failure. The default systemd service timeout is now disabled (consistent with RHEL) to prevent this from happening. (Bug #28246585, Bug #91423) * With the thread_pool plugin enabled, the sys.processlist and sys.session views displayed a thread name rather than the actual user name. (Bug #25906021, Bug #85976) * The delete_latency column in the sys.schema_index_statistics view incorrectly referred to the SUM_TIMER_INSERT column of the Performance Schema table_io_waits_summary_by_index_usage table rather than the SUM_TIMER_DELETE column. (Bug #25521928) * In output from the sys.diagnostics() procedure, the latency column for the user_summary_by_file_io_type view was incorrectly displayed in raw picoseconds rather than as a formatted value. (Bug #25287996) * MySQL Enterprise Encryption functions could apply Diffie-Hellman (DH) methods to non-DH keys, resulting in unpredictable results or server exit. (Bug #22839007) * Password masking was incomplete for SHOW PROCESSLIST and some INFORMATION_SCHEMA and Performance Schema tables. (Bug #20712046) * With strict SQL mode enabled, the STR_TO_DATE() function did not properly handle values with time parts only. Thanks to Daniel Black for the contribution. (Bug #18090591, Bug #71386) * A query using GREATEST() in the WHERE clause could, in certain cases, fail to return a row where one was expected or raise a spurious error. (Bug #96012, Bug #29963278) * Explicitly setting sort_buffer_size to its maximum value or close to it caused some queries to fail with an out of memory error. (Bug #95969, Bug #29952775) References: See also: Bug #22594514. * Late NULL filtering, to avoid index lookups if the lookup key contains at least one NULL, was not performed for backwards index scans, although it was for forward index scans. (Bug #95967, Bug #29954680) * Using a function such as IFNULL() or ABS() in a functional index led to the error Value is out of range for functional index... when an UNSIGNED column used as an argument to such a function contained a value exceeding that of the corresponding signed integer type. (Bug #95881, Bug #29934661) * The resolution procedure for the IFNULL() function differed from that for all other functions derived from CASE(), including COALESCE(), which caused incorrect length information to be generated for certain numeric expressions. (Bug #94614, Bug #29463760) * Queries using UNION ALL ... LIMIT 1 evaluated an excessive number of rows as shown by Handler_read, Handler_read_key, and Handler_read_next. (Bug #79340, Bug #22292995) References: See also: Bug #79040, Bug #22158368, Bug #92994, Bug #28866942. * The -DWITH_EXAMPLE_STORAGE_ENGINE=1 CMake option was ignored but should not have been. If -DWITH_EXAMPLE_STORAGE_ENGINE=0 is given, the EXAMPLE storage engine is built as a plugin. (Bug #70859, Bug #17772560, Bug #30133062) References: See also: Bug #18324650./
Edited 1 time(s). Last edit at 10/14/2019 07:46AM by Bjørn Munch.
MySQL Community Server 8.0.18 has been released, part 2/2
October 14, 2019 07:39AM
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