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https://dev.mysql.com/doc/refman/8.4/en/information-schema-columns-table.html
ORDINAL_POSITION is necessary because you might want to say ORDER BY ORDINAL_POSITION. Unlike SHOW COLUMNS, SELECT from the COLUMNS table does not have automatic ordering. If more than one of the COLUMN_KEY values applies to a given column of a ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-index-types.html
The rows are ordered by the row ID that InnoDB assigns. Thus, the rows ordered by the row ID are physically in order of insertion. Each InnoDB table has a special index called the clustered index that stores row data. To get the best performance ...
https://dev.mysql.com/doc/refman/8.4/en/lateral-derived-tables.html
A derived table cannot normally refer to (depend on) columns of preceding tables in the same FROM clause. A derived table may be defined as a lateral derived table to specify that such references are permitted. Nonlateral derived tables are ...
https://dev.mysql.com/doc/refman/8.4/en/ldml-collation-example.html
The solution is to define a new collation that reorders punctuation characters, making them ignorable. Within the <collation> element, provide a <rules> element containing the ordering rules: <charset name="utf8mb4"> ... To add a UCA collation for ...
https://dev.mysql.com/doc/refman/8.4/en/myisam-storage-engine.html
There is no significant speed penalty for storing data low byte first; the bytes in a table row normally are unaligned and it takes little more processing to read an unaligned byte in order than in reverse order. When rows are inserted in sorted ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-backup-using-management-client.html
If both a wait_option and a snapshot_option are used, they may be specified in either order. The management client acknowledges the abort request with Abort of backup backup_id ordered. (The remaining nodes report that the backup was aborted due to ... Before starting a backup, make sure that the cluster is properly configured for performing ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-disk-data-objects.html
A log file group, a tablespace, and any Disk Data tables using these must be created in a particular order. NDB Cluster Disk Data storage is implemented using the following objects: Tablespace: Acts as containers for other Disk Data objects. A ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-limitations-transactions.html
Because the MySQL server creates a shadowing ordered index for every unique index created in NDB, this lets the ordered index be read instead, and avoids unique index access locking. Reading via an ordered index makes less efficient use of resources ... A number of limitations exist in NDB Cluster with regard to the handling of ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-log-statistics.html
This does not include range scans (that is, ordered index scans). This is the number of ordered index scans using this TC as the transaction coordinator that were started in the last reporting interval. Unique key operations may result in multiple ... The NDB management client's CLUSTERLOG STATISTICS command can provide a number of useful statistics in its ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-config-editor.html
For information about the order in which option files are used, see Section 6.2.2.2, “Using Option Files”. mysql_config_editor adds login paths to the login path file in the order you create them, so you should create more general login paths ...