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https://dev.mysql.com/doc/refman/8.0/en/innodb-troubleshooting-recovery.html
From MySQL 8.0.26, checkpoints and advancing the checkpoint LSN are not permitted until redo log recovery is complete and data dictionary dynamic metadata (srv_dict_metadata) is transferred to data dictionary table (dict_table_t) objects. If an ...
https://dev.mysql.com/doc/refman/8.0/en/language-structure.html
This chapter discusses the rules for writing the following elements of SQL statements when using MySQL: Literal values such as strings and numbers Identifiers such as database, table, and column names Keywords and reserved words User-defined and ...
https://dev.mysql.com/doc/refman/8.0/en/load-index.html
tbl_index_list: tbl_name [PARTITION (partition_list)] [{INDEX|KEY} (index_name[, index_name] ...)] [IGNORE LEAVES] partition_list: { partition_name[, partition_name] ... | ALL } The LOAD INDEX INTO CACHE statement preloads a table index into the key ...
https://dev.mysql.com/doc/refman/8.0/en/loadable-function-reference.html
The following table lists each function that is loadable at runtime and provides a short description of each one. For a table listing built-in functions and operators, see Section 14.1, “Built-In Function and Operator Reference” For general ...
https://dev.mysql.com/doc/refman/8.0/en/mrr-optimization.html
With the Disk-Sweep Multi-Range Read (MRR) optimization, MySQL tries to reduce the number of random disk access for range scans by first scanning the index only and collecting the keys for the relevant rows. Reading rows using a range scan on a ...
https://dev.mysql.com/doc/refman/8.0/en/myisam-table-problems.html
The file format that MySQL uses to store data has been extensively tested, but there are always circumstances that may cause database tables to become corrupted. The following discussion describes how this can happen and how to handle it.
https://dev.mysql.com/doc/refman/8.0/en/mysqlbinlog-hexdump.html
For more information about binary log format, see MySQL Internals: The Binary Log. In the example shown, '9d fc 5c 43' is the representation of '051024 17:24:13' in hexadecimal. Master ID: The server ID of the replication source server that created ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlbinlog-server-id.html
When invoked with the --read-from-remote-server option, mysqlbinlog connects to a MySQL server, specifies a server ID to identify itself, and requests binary log files from the server. You can use mysqlbinlog to request log files from a server in ...The server sends all files, but does not disconnect after sending the last ...
https://dev.mysql.com/doc/refman/8.0/en/optimizer-trace-testing.html
This feature is tested in mysql-test/suite/opt_trace and unittest/gunit/opt_trace-t. ...
https://dev.mysql.com/doc/refman/8.0/en/optimizer-tracing.html
The MySQL optimizer includes the capability to perform tracing; the interface is provided by a set of optimizer_trace_xxx system variables and the INFORMATION_SCHEMA.OPTIMIZER_TRACE table.