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https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-javascript-indexes-create.html
Indexes are used to find documents with specific field values quickly. Without an index, MySQL must begin with the first document and then read through the entire collection to find the relevant fields. If a collection is large and queries on a ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-python-documents-index.html
Indexes are used to find documents with specific field values quickly. Without an index, MySQL must begin with the first document and then read through the entire collection to find the relevant fields. If a collection is large and queries on a ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-file-formats.html
The MySQL server calls the audit log plugin to write an audit record to its log file whenever an auditable event occurs. Typically the first audit record written after plugin startup contains the server description and startup options. Elements ...
https://dev.mysql.com/doc/refman/8.0/en/create-table-check-constraints.html
Prior to MySQL 8.0.16, CREATE TABLE permits only the following limited version of table CHECK constraint syntax, which is parsed and ignored: CHECK (expr) As of MySQL 8.0.16, CREATE TABLE permits the core features of table and column CHECK ...
https://dev.mysql.com/doc/refman/8.0/en/create-tablespace.html
The precise syntax and semantics depend on the storage engine used. MySQL NDB Cluster also supports tablespaces using the NDB storage engine. Considerations for InnoDB Considerations for NDB Cluster Options Notes InnoDB Examples NDB Example ...
https://dev.mysql.com/doc/refman/8.0/en/group-replication-configuring-instances.html
This section explains the configuration settings required for MySQL Server instances that you want to use for Group Replication. Storage Engines Replication Framework Group Replication Settings Storage Engines For Group Replication, data must be ...
https://dev.mysql.com/doc/refman/8.0/en/information-functions.html
It may be used to time how quickly MySQL processes the expression. The result value is 0, or NULL for inappropriate arguments such as a NULL or negative repeat count. The intended use is from within the mysql client, which reports query execution ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-indexes-table.html
For related usage information and examples, see Section 17.15.3, “InnoDB INFORMATION_SCHEMA Schema Object Tables”. The INNODB_INDEXES table has these columns: INDEX_ID An identifier for the index. Index identifiers are unique across all the ...
https://dev.mysql.com/doc/refman/8.0/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/8.0/en/innodb-fulltext-index.html
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 columns. A full-text index is defined as part of a CREATE TABLE statement or added to an ...