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https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-tablespaces-table.html
Note The INFORMATION_SCHEMA FILES table reports metadata for InnoDB tablespace types including file-per-table tablespaces, general tablespaces, the system tablespace, the global temporary tablespace, and undo tablespaces. row ... The ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-introduction.html
INFORMATION_SCHEMA provides access to database metadata, information about the MySQL server such as the name of a database or table, the data type of a column, or access privileges. Other terms that are sometimes used for this information are data ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-partitions-table.html
The value is always DEFAULT, unless the table uses the NDB storage engine (see the Notes at the end of this section). Each row in this table corresponds to an individual partition or subpartition of a partitioned table. The PARTITIONS table has ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-processlist-table.html
Note A USER value of system user is distinct from the SYSTEM_USER privilege. Important INFORMATION_SCHEMA.PROCESSLIST is deprecated and subject to removal in a future MySQL release. As such, the implementation of SHOW PROCESSLIST which uses this ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-profiling-table.html
Note This table is deprecated; expect it to be removed in a future MySQL release. Its contents correspond to the information produced by the SHOW PROFILE and SHOW PROFILES statements (see Section 15.7.7.30, “SHOW PROFILE Statement”). The table ...
https://dev.mysql.com/doc/refman/8.0/en/innochecksum.html
Note Running innochecksum on multiple files in the same tablespace is not supported on Windows operating systems, as Windows shells such as cmd.exe do not support glob pattern expansion. This tool reads an InnoDB tablespace file, calculates the ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-compression-internals.html
As noted above, if a row does not fit by itself on a compressed page, an error occurs. Note For tables created in ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED, TEXT and BLOB columns that are less than or equal to 40 bytes are always stored in-line.
https://dev.mysql.com/doc/refman/8.0/en/innodb-create-table-external.html
There are different reasons for creating InnoDB tables externally; that is, creating tables outside of the data directory. Those reasons might include space management, I/O optimization, or placing tables on a storage device with particular ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-enabling-monitors.html
Note To assist with troubleshooting, InnoDB temporarily enables standard InnoDB Monitor output under certain conditions. Note To enable the InnoDB Lock Monitor for SHOW ENGINE INNODB STATUS output, you are only required to enable ... When InnoDB ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-fulltext-index.html
If you want to create your own FTS_DOC_ID column, the column must be defined as BIGINT UNSIGNED NOT NULL and named FTS_DOC_ID (all uppercase), as in the following example: Note The FTS_DOC_ID column does not need to be defined as an AUTO_INCREMENT ... Full-text indexes are created on text-based columns (CHAR, VARCHAR, or TEXT columns) to speed up queries and DML operations on data contained within those ...