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https://dev.mysql.com/doc/refman/5.7/en/performance-schema-memory-model.html
Memory used depends on the load actually seen, not the load estimated or explicitly configured for. As the Performance Schema collects data, memory is allocated in the corresponding buffer. The buffer size is unbounded, and may grow with the load.
https://dev.mysql.com/doc/refman/5.7/en/replication-multi-source-provision-replica.html
If the sources in the multi-source replication topology have existing data, it can save time to provision the replica with the relevant data before starting replication. In a multi-source replication topology, copying the data directory cannot be ...
https://dev.mysql.com/doc/refman/5.7/en/spatial-function-argument-handling.html
Spatial values, or geometries, have the properties described in Section 11.4.2.2, “Geometry Class”. Specific functions or groups of functions may have additional or different argument-handling characteristics, as discussed in the sections where ...
https://dev.mysql.com/doc/refman/5.7/en/audit-log-file-reading.html
A successful call to audit_log_read() to read events returns a JSON string containing an array of audit events: If the final value of the returned array is not a JSON null value, there are more events following those just read and audit_log_read() ... The audit log plugin supports functions that provide an SQL interface for reading JSON-format audit log ...
https://dev.mysql.com/doc/refman/5.7/en/mysqlbinlog-row-events.html
# at 218 #080828 15:03:08 server id 1 end_log_pos 258 Write_rows: table id 17 flags: STMT_END_F BINLOG ' fAS3SBMBAAAALAAAANoAAAAAABEAAAAAAAAABHRlc3QAAXQAAwMPCgIUAAQ= fAS3SBcBAAAAKAAAAAIBAAAQABEAAAAAAAEAA//8AQAAAAVhcHBsZQ== '/*!*/; ### INSERT INTO ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-memcached-setup.html
This section describes how to set up the daemon_memcached plugin on a MySQL server. Because the memcached daemon is tightly integrated with the MySQL server to avoid network traffic and minimize latency, you perform this process on each MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/downgrading-to-previous-series.html
Before downgrading from MySQL 5.7, review the information in this section. System Table Changes InnoDB Changes Logging Changes SQL Changes System Table Changes In MySQL 5.7.13, system table columns that store user@host string values were increased ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-columns-range.html
Range columns partitioning is similar to range partitioning, but enables you to define partitions using ranges based on multiple column values. In addition, you can define the ranges using columns of types other than integer types. RANGE COLUMNS ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-install-example-data.html
Note The information in this section applies to NDB Cluster running on both Unix and Windows platforms. Working with database tables and data in NDB Cluster is not much different from doing so in standard MySQL. There are two key points to keep in ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-what-is-new-7-5.html
Attempting to use any of these parameters in an NDB Cluster configuration file now results in an error. Beginning with NDB 7.5.23, ndb_restore can support restoring of NULL columns as NOT NULL and the reverse, using the options listed here: To ...