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https://dev.mysql.com/doc/refman/8.0/en/innodb-information-schema-examples.html
SELECT THREAD_ID, SQL_TEXT FROM performance_schema.events_statements_history WHERE THREAD_ID = 28 ORDER BY EVENT_ID; Correlating InnoDB Transactions with MySQL Sessions Sometimes it is useful to correlate internal InnoDB locking information with the ... Note This section describes locking information as exposed by the Performance Schema data_locks and data_lock_waits tables, which supersede the INFORMATION_SCHEMA INNODB_LOCKS and INNODB_LOCK_WAITS tables in MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-oci-plugin.html
Note The keyring_oci plugin is an extension included in MySQL Enterprise Edition, a commercial product. No key information is permanently stored in MySQL server local storage. All keys are stored in Oracle Cloud Infrastructure Vault, making this ...
https://dev.mysql.com/doc/refman/8.0/en/spatial-types.html
MySQL spatial extensions enable the generation, storage, and analysis of geographic features: Data types for representing spatial values Functions for manipulating spatial values Spatial indexing for improved access times to spatial columns The ...
https://dev.mysql.com/doc/refman/8.0/en/sys-sys-config.html
set_time The timestamp of the most recent modification to the row. (For example, the statements_with_runtimes_in_95th_percentile view has a built-in limit in the sense that it returns only statements with average execution time in the 95th ... This ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-format.html
The ts (timestamp) key was added in MySQL 8.0.20 and is unique to the JSON-format log sink. The server handles error log messages that are generated early in the startup process as follows: Prior to MySQL 8.0.14, the server generates messages with ...For all log sinks, the thread ID included in error log messages is that of the thread within mysqld responsible for writing the ... Each error log sink (writer) component has a characteristic output format it uses to write ...
https://dev.mysql.com/doc/refman/8.0/en/database-use.html
A menagerie distribution containing some of the queries and sample data used in the following sections can be obtained from the MySQL website. It is available in both compressed tar file and Zip formats at https://dev.mysql.com/doc/. Use the SHOW ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-search-ngram.html
The built-in MySQL full-text parser uses the white space between words as a delimiter to determine where words begin and end, which is a limitation when working with ideographic languages that do not use word delimiters. To address this limitation, ...The ngram full-text parser is supported for use with InnoDB and ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-getting-started.html
MySQL Group Replication is provided as a plugin for the MySQL server; each server in a group requires configuration and installation of the plugin. Tip To deploy multiple instances of MySQL, you can use InnoDB Cluster which enables you to easily ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-launching.html
Otherwise, you must install the plugin manually; to do this, connect to the server using the mysql client, and issue the SQL statement shown here: mysql> INSTALL PLUGIN group_replication SONAME 'group_replication.so'; Important The mysql.session ...
https://dev.mysql.com/doc/refman/8.0/en/identifier-case-sensitivity.html
In MySQL, databases correspond to directories within the data directory. The following statement would not work because it refers to a table both as my_table and as MY_TABLE: mysql> SELECT * FROM my_table WHERE MY_TABLE.col=1; Partition, ...Each ...