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https://dev.mysql.com/doc/workbench/en/wb-performance-explain.html
For information about how MySQL executes statements, see Optimizing Queries with EXPLAIN. For more information about cost estimates, see The Optimizer Cost Model. No usable indexes were found for the table, which forces the optimizer to search every ... The visual explain feature generates and displays a visual representation of the MySQL EXPLAIN statement by using extended information available in the extended JSON ...
https://dev.mysql.com/doc/connectors/en/connector-odbc-usagenotes-apptips-microsoft.html
The majority of Microsoft applications have been tested with Connector/ODBC, including Microsoft Office, Microsoft Access and the various programming languages supported within ASP and Microsoft Visual Studio. 5.8.2.1.1 Microsoft Access To improve ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-innodbfulltext-category.html
Num Word Optimize Number of words to process during each OPTIMIZE TABLE operation on an InnoDB FULLTEXT index. Optimize Fulltext Only Enabled Changes the way the OPTIMIZE TABLE statement operates on InnoDB tables. Lists the InnoDB Fulltext ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-bulk-load-mysql-server.html
It adds the following features: The optimized loading of data sorted by primary key. MySQL includes a bulk load extension to the LOAD DATA statement that is only available in HeatWave MySQL. MySQL 8.4.0 adds the following features: Loading a MySQL ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-limitations-joins.html
NOT EXISTS (...) IS NOT TRUE Depending on transformations and optimizations performed by MySQL, other variants of EXISTS semijoins may or may not be offloaded. NOT IN (...) IS FALSE Depending on transformations and optimizations performed by MySQL, ... Antijoins, with the exception of supported IN and EXISTS antijoin variants listed ...
https://dev.mysql.com/doc/refman/8.4/en/comments.html
Another variant of C-style comment syntax is used to specify optimizer hints. If there is a concern that optimizer-hint comments may be stored in object definitions so that dump files when reloaded with mysql would result in execution of such ...
https://dev.mysql.com/doc/refman/8.4/en/create-index.html
To support this kind of scenario for functional key parts, the optimizer automatically strips CAST() when looking for an index to use, but only if the collation of the indexed expression matches that of the query expression. CREATE [UNIQUE | ...
https://dev.mysql.com/doc/refman/8.4/en/docker-mysql-more-topics.html
Warning Any software updates or installations users perform to the Docker container (including those for MySQL components) may conflict with the optimized MySQL installation created by the Docker image. A MySQL Docker installation is different from ...
https://dev.mysql.com/doc/refman/8.4/en/faqs-thread-pool.html
How does the Thread Pool limit and manage concurrent sessions and transactions for optimal performance and throughput? A.15.3. How does the Thread Pool limit and manage concurrent sessions and transactions for optimal performance and throughput? The ...What is the Thread Pool and what problem does it solve? ...
https://dev.mysql.com/doc/refman/8.4/en/features.html
Implements SQL functions using a highly optimized class library that should be as fast as possible. An EXPLAIN statement to show how the optimizer resolves a query. MySQL Server has built-in support for SQL statements to check, optimize, and repair ... This section describes some of the important characteristics of the MySQL Database ...