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https://dev.mysql.com/doc/refman/9.7/en/information-schema-columns-table.html
It contains the column SRID value that indicates the spatial reference system for values stored in the column. See Section 13.4.1, “Spatial Data Types”, and Section 13.4.5, “Spatial Reference System Support”. The related ST_GEOMETRY_COLUMNS ...
https://dev.mysql.com/doc/refman/9.7/en/information-schema-resource-groups-table.html
System resource groups have a priority that ranges from -20 to 0. The RESOURCE_GROUPS table provides access to information about resource groups. For general discussion of the resource group capability, see Section 7.1.16, “Resource Groups”.
https://dev.mysql.com/doc/refman/9.7/en/information-schema-st-geometry-columns-table.html
The ST_GEOMETRY_COLUMNS table provides information about table columns that store spatial data. This table is based on the SQL/MM (ISO/IEC 13249-3) standard, with extensions as noted. MySQL implements ST_GEOMETRY_COLUMNS as a view on the ...
https://dev.mysql.com/doc/refman/9.7/en/information-schema-table-reference.html
The following table summarizes all available INFORMATION_SCHEMA tables. For greater detail, see the individual table descriptions. Table 28.1 INFORMATION_SCHEMA Tables Table Name Description Deprecated ADMINISTRABLE_ROLE_AUTHORIZATIONS Grantable ...
https://dev.mysql.com/doc/refman/9.7/en/innodb-multiple-buffer-pools.html
For systems with buffer pools in the multi-gigabyte range, dividing the buffer pool into separate instances can improve concurrency, by reducing contention as different threads read and write to cached pages. This feature is typically intended for ...Multiple buffer pool instances are configured using the innodb_buffer_pool_instances configuration option, and you might also adjust the innodb_buffer_pool_size ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-cpudata-1sec.html
The cpudata_1sec table provides data about CPU usage per second over the last 20 seconds.
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-cpudata-20sec.html
The cpudata_20sec table provides data about CPU usage per 20-second interval over the last 400 seconds.
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-cpudata-50ms.html
The cpudata_50ms table provides data about CPU usage per 50-millisecond interval over the last second.
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-cpudata.html
The cpudata table provides data about CPU usage during the last second.
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-resources.html
Notes The resource_name can be any one of the names shown in the following table: RESERVED: Reserved by the system; cannot be overridden. Thus, in a system having four data nodes and eight API nodes, the data nodes have 12 * 2 MB send buffer memory.