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https://dev.mysql.com/doc/ndbapi/en/overview-application-programs.html
The main structure of an application program is as follows: Connect to a cluster using the Ndb_cluster_connection object. Initiate a database connection by constructing and initialising one or more Ndb objects. Identify the tables, columns, and ...
https://dev.mysql.com/doc/refman/8.4/en/channels-startup-options.html
--replica-net-timeout=N This value is set per channel, so that each channel waits for N seconds to check for a broken connection. --max-relay-log-size=size Maximum size of the individual relay log file for each channel; after reaching this limit, ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/meb-backup-osb.html
Each time an online backup is made to a tape using the SBT API , besides recording the backup in the mysql.backup_history and the mysql.backup_progress tables, an entry is also made to the mysql.backup_sbt_history table on the backed up MySQL ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-replication-tables.html
For multithreaded replica operation, SHOW REPLICA STATUS reports all coordinator and worker thread errors using the Last_SQL_Errno and Last_SQL_Error fields, so only the most recent of those errors is visible and information can be lost. The ...This ...
https://dev.mysql.com/doc/refman/8.4/en/spatial-relation-functions-mbr.html
In other words, it is the rectangle bounded by the points (min(x), min(y)), (min(x), max(y)), (max(x), max(y)), and (max(x), min(y)), where min() and max() represent the geometry's minimum and maximum x-coordinate or y-coordinate, respectively. If ... MySQL provides several MySQL-specific functions that test the relationship between minimum bounding rectangles (MBRs) of two geometries g1 and ...
https://dev.mysql.com/doc/internals/en/delete-table.html
By the time delete_table() has been called all opened references to this table will have been closed (and your globally shared references released). Parameters name : Base name of table Return Values 0 if we successfully deleted at least one file ...
https://dev.mysql.com/doc/internals/en/rule-exceptions.html
Prerequisites checks Section 26.3.1, “Error Masking” Section 26.3.2, “Use of the Option --disable_abort_on_error” Section 26.3.3, “Perfect Cleanup at the End of a Test” Section 26.3.4, “Use of OS-Specific Commands” .
https://dev.mysql.com/doc/refman/8.4/en/replication-mode-change-online-enable-gtids.html
The following procedure can be paused at any time and later resumed where it was, or reversed by jumping to the corresponding step of Section 19.1.4.3, “Disabling GTID Transactions Online”, the online procedure to disable GTIDs. On each server, ... This section describes how to enable GTID transactions, and optionally auto-positioning, on servers that are already online and using anonymous ...
https://dev.mysql.com/doc/refman/8.4/en/myisam-start.html
If the repair fails because of an error in the data file (for example, a duplicate-key error), the server tries again, this time re-creating the data file. myisam_max_sort_file_size The maximum size of the temporary file that MySQL is permitted to ... The following options to mysqld can be used to change the behavior of MyISAM ...
https://dev.mysql.com/doc/relnotes/heatwave/en/news-8-0-25.html
When a new query shares query execution plan nodes with previously executed queries, the actual statistics collected from previously executed queries are used instead of estimated statistics, which improves query execution plans, cost estimations, ...For example, the following query can now be offloaded to MySQL HeatWave for execution: SELECT DISTINCT a FROM t1 ORDER BY c DESC; (Bug #32583856) Query plan statistics are now collected and stored in a statistics cache when a query is executed in MySQL ...