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https://dev.mysql.com/doc/refman/8.0/en/show-processlist.html
row *************************** Id: 2 User: system user Host: db: NULL Command: Connect Time: 1004 State: Has read all relay log; waiting for the replica I/O thread to update it Info: NULL *************************** 3. row ... SHOW [FULL] ...
https://dev.mysql.com/doc/refman/8.0/en/spatial-index-optimization.html
MySQL still maintains such indexes, as follows: They are updated for table modifications (INSERT, UPDATE, DELETE, and so forth). Updates occur as though the index was Cartesian, even though the column might contain a mix of Cartesian and ... MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/stored-program-restrictions.html
For maximum concurrency, stored functions should minimize their side-effects; in particular, updating a table within a stored function can reduce concurrent operations on that table. Consequently, stored functions that update the same underlying ...
https://dev.mysql.com/doc/refman/8.0/en/subquery-restrictions.html
(See Section 10.2.2.4, “Optimizing Derived Tables, View References, and Common Table Expressions with Merging or Materialization”.) Example: UPDATE t ... FROM t...) AS dt ...); Here the result from the derived table is materialized as a ... In ...
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-prerequisites.html
Before using the sys schema, the prerequisites described in this section must be satisfied. Because the sys schema provides an alternative means of accessing the Performance Schema, the Performance Schema must be enabled for the sys schema to work.
https://dev.mysql.com/doc/refman/8.0/en/version-tokens-reference.html
If a token exists, its value is updated with the given value. | +-----------------------------------------------+ mysql> SELECT version_tokens_edit('tok2=new_value2;tok3=new_value3'); +--------------------------------------------------------+ | ...
https://dev.mysql.com/doc/refman/8.0/en/compilation-problems.html
This mode causes compiler warnings to become errors, so disabling it may enable compilation to proceed. For information about acquiring or updating tools, see the system requirements in Section 2.8, “Installing MySQL from Source”. If you do ...
https://dev.mysql.com/doc/refman/8.0/en/create-user.html
To require an encrypted connection, a client need specify only the --ssl-mode=REQUIRED option; the connection attempt fails if a secure connection cannot be established. CREATE USER permits these resource_option values: MAX_QUERIES_PER_HOUR count, ... CREATE USER [IF NOT EXISTS] user [auth_option] [, user [auth_option]] ...
https://dev.mysql.com/doc/refman/8.0/en/docker-mysql-more-topics.html
Warning Any software updates or installations users perform to the Docker container (including those for MySQL components) may conflict with the optimized MySQL installation created by the Docker image. "Mounts": [ { "Type": "volume", "Name": ...A ...
https://dev.mysql.com/doc/refman/8.0/en/document-store-interfaces.html
You can use MySQL Shell to prototype applications, execute queries and update data. To work with MySQL as a document store, you use dedicated components and a choice of clients that support communicating with the MySQL server to develop document ...