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https://dev.mysql.com/doc/refman/5.7/en/sys-schema-usage.html
For example, to examine the definitions of the session view and format_bytes() function, use these statements: mysql> SHOW CREATE VIEW sys.session; mysql> SHOW CREATE FUNCTION sys.format_bytes; However, those statements display the definitions in ...
https://dev.mysql.com/doc/refman/5.7/en/table-size-limit.html
Windows users, please note that FAT and VFAT (FAT32) are not considered suitable for production use with MySQL. If you need a MyISAM table that is larger than the default limit and your operating system supports large files, the CREATE TABLE ... The ...
https://dev.mysql.com/doc/refman/5.7/en/column-indexes.html
For additional information about column indexes, see Section 13.1.14, “CREATE INDEX Statement”. Index Prefixes FULLTEXT Indexes Spatial Indexes Indexes in the MEMORY Storage Engine Index Prefixes With col_name(N) syntax in an index specification ... The most common type of index involves a single column, storing copies of the values from that column in a data structure, allowing fast lookups for the rows with the corresponding column ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-persistent-stats.html
You can also configure automatic statistics recalculation for individual tables by specifying the STATS_AUTO_RECALC clause when creating or altering a table. To override these system-wide settings and configure optimizer statistics parameters for ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-page-compression.html
Page compression is enabled by specifying the COMPRESSION attribute with CREATE TABLE or ALTER TABLE. For page compression to work on Windows, the file system must be created with a cluster size smaller than 4K, and the innodb_page_size must be at ... InnoDB supports page-level compression for tables that reside in file-per-table ...
https://dev.mysql.com/doc/refman/5.7/en/precision-math-examples.html
Consider these statements: mysql> CREATE TABLE t (i INT, d DECIMAL, f FLOAT); mysql> INSERT INTO t VALUES(1,1,1); mysql> CREATE TABLE y SELECT AVG(i), AVG(d), AVG(f) FROM t; The result is a double only for the floating-point argument. This section ...
https://dev.mysql.com/doc/refman/5.7/en/replication-solutions-diffengines.html
Configuring different engines on the source and replica depends on how you set up the initial replication process: If you used mysqldump to create the database snapshot on your source, you could edit the dump file text to change the engine type used ... It does not matter for the replication process whether the source table on the source and the replicated table on the replica use different engine ...
https://dev.mysql.com/doc/refman/5.7/en/silent-column-changes.html
In some cases, MySQL silently changes column specifications from those given in a CREATE TABLE or ALTER TABLE statement. Trailing spaces are automatically deleted from ENUM and SET member values when the table is created. Specifying the CHARACTER ...These might be changes to a data type, to attributes associated with a data type, or to an index ...
https://dev.mysql.com/doc/refman/5.7/en/version-tokens-installation.html
To avoid this overhead, do not install it unless you plan to use it. This section describes how to install or uninstall Version Tokens, which is implemented in a plugin library file containing a plugin and loadable functions. For general information ...
https://dev.mysql.com/doc/refman/5.7/en/audit-log-elements.html
Tables in the mysql system database provide persistent storage of filter and user account data. MySQL Enterprise Audit is based on the audit log plugin and related elements: A server-side plugin named audit_log examines auditable events and ...