PDF (US Ltr)
- 43.2Mb
PDF (A4)
- 43.3Mb
Man Pages (TGZ)
- 295.2Kb
Man Pages (Zip)
- 400.4Kb
Info (Gzip)
- 4.3Mb
Info (Zip)
- 4.3Mb
Search Results
https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-ddl-operations.html
Many DDL operations on tables and indexes (CREATE, ALTER, and DROP statements) can be performed online. Online DDL support for adding secondary indexes means that you can generally speed up the process of creating and loading a table and associated ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-myisam-bulk-data-loading.html
These performance tips supplement the general guidelines for fast inserts in Section 10.2.5.1, “Optimizing INSERT Statements”. For a MyISAM table, you can use concurrent inserts to add rows at the same time that SELECT statements are running, ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-queries-myisam.html
Some general tips for speeding up queries on MyISAM tables: To help MySQL better optimize queries, use ANALYZE TABLE or run myisamchk --analyze on a table after it has been loaded with data. This updates a value for each index part that indicates ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-key.html
Important For a key-partitioned table, you cannot execute an ALTER TABLE DROP PRIMARY KEY, as doing so generates the error ERROR 1466 (HY000): Field in list of fields for partition function not found in table. Partitioning by key is similar to ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-overview.html
However, if no columns are listed in the PARTITION BY KEY or PARTITION BY LINEAR KEY clause of the CREATE TABLE or ALTER TABLE statement used to create or modify a user-partitioned NDB table, then the table is not required to have an explicit ...
https://dev.mysql.com/doc/refman/8.0/en/password-logging.html
An alternative to storing the password in the connection metadata repository is to use the START REPLICA (or before MySQL 8.0.22, START SLAVE) or START GROUP_REPLICATION statement to specify credentials for connecting to the source. Passwords can ...
https://dev.mysql.com/doc/refman/8.0/en/repair-table.html
REPAIR PARTITION to repair one or more partitions; for more information, see Section 15.1.9, “ALTER TABLE Statement”, and Section 26.3.4, “Maintenance of Partitions”. [QUICK] [EXTENDED] [USE_FRM] REPAIR TABLE repairs a possibly corrupted ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-current-user.html
In some cases, such as statements that change passwords, the function reference is expanded before it is written to the binary log, so that the statement includes the user name. For all other cases, the name of the current user on the source is ...
https://dev.mysql.com/doc/refman/8.0/en/replication-options-replica.html
Only statements involving tables are affected, not statements such as CREATE DATABASE, DROP DATABASE, and ALTER DATABASE. If the table name pattern is %, it matches any table name and the option also applies to database-level statements (CREATE ...
https://dev.mysql.com/doc/refman/8.0/en/replication-rules-db-options.html
Important For statement-based logging, an exception is made in the rules just given for the CREATE DATABASE, ALTER DATABASE, and DROP DATABASE statements. In those cases, the database being created, altered, or dropped replaces the default database ... When evaluating replication options, the replica begins by checking to see whether there are any --replicate-do-db or --replicate-ignore-db options that ...