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https://dev.mysql.com/doc/refman/5.7/en/non-typed-operators.html
->> Return value from JSON column after evaluating path and unquoting the result; equivalent to JSON_UNQUOTE(JSON_EXTRACT()). 5.7.13 / Division operator := Assign a value = Assign a value (as part of a SET statement, or as part of the SET clause in ...
https://dev.mysql.com/doc/refman/5.7/en/option-files.html
MySQL looks for option files in the order described in the following discussion and reads any that exist. If an option file you want to use does not exist, create it using the appropriate method, as just discussed. Most MySQL programs can read ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-selection.html
Each name in this list must be the name of an existing partition or subpartition of the specified table; if any of the partitions or subpartitions are not found, the statement fails with an error (partition 'partition_name' does not exist). MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning.html
When partitioning support is disabled, you can see any existing partitioned tables and drop them (although doing this is not advised), but you cannot otherwise manipulate them or access their data. Section 22.3, “Partition Management”, covers ...
https://dev.mysql.com/doc/refman/5.7/en/password-hashing.html
To create a new account that has a long password hash, or to change the password of any existing account to use a long hash, first set the session value of old_passwords set to 0 while leaving the global value set to 1, as described previously.
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-applier-status-by-coordinator-table.html
SERVICE_STATE ON (thread exists and is active or idle) or OFF (thread no longer exists). 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 ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-replication-applier-status-by-worker-table.html
SERVICE_STATE ON (thread exists and is active or idle) or OFF (thread no longer exists). If the replica is not multithreaded, this table shows the status of the applier thread. Otherwise, the replica uses multiple worker threads and a coordinator ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-setup-actors-table.html
Modifications to the setup_actors table affect only foreground threads created subsequent to the modification, not existing threads. To affect existing threads, modify the INSTRUMENTED and HISTORY columns of threads table rows. The setup_actors ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-thread-filtering.html
Modifications to the setup_actors table affect only foreground threads created subsequent to the modification, not existing threads. To affect existing threads, modify the INSTRUMENTED and HISTORY columns of threads table rows. The threads table ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-threads-table.html
When the Performance Schema initializes, it populates the threads table based on the threads in existence then. To control these aspects of existing threads, set the INSTRUMENTED and HISTORY columns of threads table rows. The threads table contains ...