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https://dev.mysql.com/doc/refman/8.4/en/innodb-information-schema-files-table.html
The Information Schema FILES table provides metadata about all InnoDB tablespace types including file-per-table tablespaces, general tablespaces, the system tablespace, temporary table tablespaces, and undo tablespaces (if present). For more ...
https://dev.mysql.com/doc/refman/8.4/en/myisam-optimization.html
To coalesce fragmented rows and eliminate wasted space that results from deleting or updating rows, run myisamchk in recovery mode: $> myisamchk -r tbl_name You can optimize a table in the same way by using the OPTIMIZE TABLE SQL statement.
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndbinfo-select-all.html
ndbinfo_select_all is a client program that selects all rows and columns from one or more tables in the ndbinfo database Not all ndbinfo tables available in the mysql client can be read by this program (see later in this section). In addition, ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-create-select.html
If the destination table does not exist, logging occurs as follows. ROW format: The statement is logged as a CREATE TABLE statement followed by a series of insert-row events. This includes the case that the destination table exists and IF NOT EXISTS ...SELECT always performs an implicit commit (Section 15.3.3, “Statements That Cause an Implicit ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-cluster-operations.html
The cluster_operations table provides a per-operation (stateful primary key op) view of all activity in the NDB Cluster from the point of view of the local data management (LQH) blocks (see The DBLQH Block). (If the MySQL Server is running with ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-how-to-import-onnx.html
Import model as a string: For smaller models, you can copy the encoded string and paste it into a session variable or temporary table column. Import model directly from a table (available as of MySQL 9.0.0): For larger models, you can load the ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-cluster-locks.html
The cluster_locks table provides information about current lock requests holding and waiting for locks on NDB tables in an NDB Cluster, and is intended as a companion table to cluster_operations. Information obtain from the cluster_locks table may ...The transaction ID (transid column) is the identifier generated by the NDB API for the transaction requesting or holding the current ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-select-count.html
ndb_select_count prints the number of rows in one or more NDB tables. With a single table, the result is equivalent to that obtained by using the MySQL statement SELECT COUNT(*) FROM tbl_name. Usage ndb_select_count [-c connection_string] -ddb_name ...--connect-retries Command-Line Format --connect-retries=# Type Integer Default Value 12 Minimum Value 0 Maximum Value 12 Number of times to retry connection before giving ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-cluster-transactions.html
The cluster_transactions table shows information about all ongoing transactions in an NDB Cluster. Together with the block name, this number can be used to look up a given instance in the threadblocks table. You can use this along with the block ...
https://dev.mysql.com/doc/internals/en/table-map-event.html
The first event used in Row Based Replication declares how a table that is about to be changed is defined. TABLE_MAP_EVENT: The TABLE_MAP_EVENT defines the structure if the tables that are about to be changed. It is sent as length encoded string ...