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https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-indexes-table.html
The INNODB_SYS_INDEXES table provides metadata about InnoDB indexes, equivalent to the information in the internal SYS_INDEXES table in the InnoDB data dictionary. For related usage information and examples, see Section 14.16.3, “InnoDB ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-tables-table.html
The INNODB_SYS_TABLES table provides metadata about InnoDB tables, equivalent to the information from the SYS_TABLES table in the InnoDB data dictionary. For related usage information and examples, see Section 14.16.3, “InnoDB INFORMATION_SCHEMA ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-tablespaces-table.html
The INNODB_SYS_TABLESPACES table provides metadata about InnoDB file-per-table and general tablespaces, equivalent to the information in the SYS_TABLESPACES table in the InnoDB data dictionary. For related usage information and examples, see ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-virtual-table.html
The INNODB_SYS_VIRTUAL table provides metadata about InnoDB virtual generated columns and columns upon which virtual generated columns are based, equivalent to information in the SYS_VIRTUAL table in the InnoDB data dictionary. A row appears in the ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-trx-table.html
The INNODB_TRX table provides information about every transaction currently executing inside InnoDB, including whether the transaction is waiting for a lock, when the transaction started, and the SQL statement the transaction is executing, if any.
https://dev.mysql.com/doc/refman/5.7/en/information-schema-tables-table.html
The TABLES table has these columns: TABLE_CATALOG The name of the catalog to which the table belongs. TABLE_SCHEMA The name of the schema (database) to which the table belongs. TABLE_TYPE BASE TABLE for a table, VIEW for a view, or SYSTEM VIEW for ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-tp-thread-group-state-table.html
That is, these two queries are equivalent: SELECT TP_GROUP_ID, MAX_THREAD_IDS_IN_GROUP FROM TP_THREAD_GROUP_STATE; SELECT TP_GROUP_ID, MAX(TP_THREAD_NUMBER) FROM TP_THREAD_STATE GROUP BY TP_GROUP_ID; . The TP_THREAD_GROUP_STATE table has one row ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-analyze-table-complexity.html
ANALYZE TABLE complexity for InnoDB tables is dependent on: The number of pages sampled, as defined by innodb_stats_persistent_sample_pages. The number of indexed columns in a table The number of partitions. If a table has no partitions, the number ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-best-practices.html
Specify a primary key for every table using the most frequently queried column or columns, or an auto-increment value if there is no obvious primary key. Use joins wherever data is pulled from multiple tables based on identical ID values from those ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-check-availability.html
Issue the SHOW ENGINES statement to view the available MySQL storage engines.