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https://dev.mysql.com/doc/refman/5.7/en/spatial-geojson-functions.html
mysql> SELECT ST_AsGeoJSON(ST_GeomFromText('POINT(11.11111 12.22222)'),2); +-------------------------------------------------------------+ | ST_AsGeoJSON(ST_GeomFromText('POINT(11.11111 12.22222)'),2) | ... This section describes functions for ...
https://dev.mysql.com/doc/refman/5.7/en/date-and-time-literals.html
Standard SQL and ODBC Date and Time Literals String and Numeric Literals in Date and Time Context Date and time values can be represented in several formats, such as quoted strings or as numbers, depending on the exact type of the value and other ...For example, in contexts where MySQL expects a date, it interprets any of '2015-07-21', '20150721', and 20150721 as a ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndbd.html
--bind-address Command-Line Format --bind-address=name Type String Default Value Causes ndbd to bind to a specific network interface (host name or IP address). --connect-string Command-Line Format --connect-string=connection_string Type String ...
https://dev.mysql.com/doc/refman/5.7/en/dbug-package.html
Here are some example debug control strings as they might be specified on a shell command line: --debug=d:t --debug=d:f,main,subr1:F:L:t,20 --debug=d,input,output,files:n --debug=d:t:i:O,\\mysqld.trace For mysqld, it is also possible to change DBUG ... The MySQL server and most MySQL clients are compiled with the DBUG package originally created by Fred ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-applier-status-by-coordinator-table.html
An error number of 0 and message which is an empty string means “no error”. For a multithreaded replica, the replica uses multiple worker threads and a coordinator thread to manage them, and this table shows the status of the coordinator thread. For a multithreaded replica, the replication_applier_status_by_worker table shows the status of the worker ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-connection-status-table.html
An error number of 0 and message of the empty string mean “no error.” If the LAST_ERROR_MESSAGE value is not empty, the error values also appear in the replica's error log. This table shows the current status of the replication I/O thread that ...
https://dev.mysql.com/doc/refman/5.7/en/replication-mode-change-online-disable-gtids.html
This section describes how to disable GTID transactions on servers that are already online. This procedure does not require taking the server offline and is suited to use in production. However, if you have the possibility to take the servers ...
https://dev.mysql.com/doc/refman/5.7/en/using-date.html
MySQL also permits a “relaxed” string format when updating and in a WHERE clause that compares a date to a DATE, DATETIME, or TIMESTAMP column. MySQL can also convert a string containing no separators (such as '20040815'), provided it makes ...
https://dev.mysql.com/doc/refman/5.7/en/create-table-generated-columns.html
Generated column definitions have this syntax: col_name data_type [GENERATED ALWAYS] AS (expr) [VIRTUAL | STORED] [NOT NULL | NULL] [UNIQUE [KEY]] [[PRIMARY] KEY] [COMMENT 'string'] AS (expr) indicates that the column is generated and defines the ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-locks-table.html
LOCK_INDEX The name of the index, if LOCK_TYPE is RECORD; otherwise NULL. LOCK_SPACE The tablespace ID of the locked record, if LOCK_TYPE is RECORD; otherwise NULL. LOCK_PAGE The page number of the locked record, if LOCK_TYPE is RECORD; otherwise ...