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https://dev.mysql.com/doc/refman/9.7/en/partitioning-selection.html
Explicit selection of partitions and subpartitions for rows matching a given WHERE condition is supported. Partition selection is similar to partition pruning, in that only specific partitions are checked for matches, but differs in two key ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-consumer-filtering.html
To enable or disable a consumer, set its ENABLED value to YES or NO. If you disable a consumer, the server does not spend time maintaining destinations for that consumer. For example, if you do not care about historical event information, disable ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-memory-summary-tables.html
Operation counts help to understand or tune the overall pressure the server is putting on the memory allocator, which has an impact on performance. Allocating a single byte one million times is not the same as allocating one million bytes a single ...
https://dev.mysql.com/doc/refman/9.7/en/replication-rules-examples.html
If you use a combination of database-level and table-level replication filtering options, the replica first accepts or ignores events using the database options, then it evaluates all events permitted by those options according to the table options. It is also important to note that the results vary depending on whether the operation is logged using statement-based or row-based binary logging ...
https://dev.mysql.com/doc/refman/9.7/en/server-status-variables.html
The MySQL server maintains many status variables that provide information about its operation. You can view these variables and their values by using the SHOW [GLOBAL | SESSION] STATUS statement (see Section 15.7.7.39, “SHOW STATUS Statement”).
https://dev.mysql.com/doc/refman/9.7/en/socket-pluggable-authentication.html
The server-side auth_socket authentication plugin authenticates clients that connect from the local host through the Unix socket file. The plugin uses the SO_PEERCRED socket option to obtain information about the user running the client program.
https://dev.mysql.com/doc/refman/9.7/en/spatial-operator-functions.html
OpenGIS proposes a number of functions that can produce geometries. These functions support all argument type combinations except those that are inapplicable according to the Open Geospatial Consortium specification. MySQL also implements certain ...
https://dev.mysql.com/doc/refman/9.7/en/spatial-relation-functions-mbr.html
MySQL provides several MySQL-specific functions that test the relationship between minimum bounding rectangles (MBRs) of two geometries g1 and g2. The return values 1 and 0 indicate true and false, respectively. The MBR (also known as the bounding ...
https://dev.mysql.com/doc/refman/9.7/en/sql-mode.html
The MySQL server can operate in different SQL modes, and can apply these modes differently for different clients, depending on the value of the sql_mode system variable. DBAs can set the global SQL mode to match site server operating requirements, ...
https://dev.mysql.com/doc/refman/9.7/en/srjsapi-llm.html
LLM Constructor LLM.unload() LLM.generate() LLM.embed() LLM.rag() This class represents a large language model. The API also provides convenience methods; see Section 27.3.10.8, “Convenience Methods”. Both versions of these methods support ...