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https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-statementprocessing-category.html
Big Selects Enabled If set to 0, MySQL aborts SELECT statements that are likely to take a very long time to execute (that is, statements for which the optimizer estimates that the number of examined rows exceeds the value of max_join_size). Max Join ...If you increase the value of max_sp_recursion_depth, it may be necessary to increase thread stack size by increasing the value of thread_stack at server ...
https://dev.mysql.com/doc/refman/8.4/en/insert-optimization.html
To optimize insert speed, combine many small operations into a single large operation. Ideally, you make a single connection, send the data for many new rows at once, and delay all index updates and consistency checking until the very end. The size ...When loading a table from a text file, use LOAD ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-ml-explain-table.html
Depending on your MySQL version, we recommend the following: Before MySQL 9.4.1, use the batch_size option to limit operations to batches of 10 to 100 rows by splitting large tables into smaller tables. If on MySQL 9.4.1 and later, manually limit ...
https://dev.mysql.com/doc/relnotes/mysql-cluster/8.4/en/news-8-4-1.html
It was removed due to a critical issue that could stop the server from restarting following the creation of a very large number of tables (8001 or more). (Bug #36453684) NDB Replication: The binary log index purge callback was skipped for the ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-limitations.html
Limiting operations to batches of 10 to 100 rows by splitting large tables into smaller tables is recommended. Memory Limitations The table used to train a model cannot exceed 10 GB, 100 million rows, or 1017 columns. For imported models, we ...Text ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-load-model.html
MySQL 9.0.0 introduces support for large models that changes how MySQL HeatWave AutoML stores models. You must load a machine learning model from the model catalog into MySQL HeatWave before running MySQL HeatWave AutoML routines other than ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-innodb-buffer-page-lru-table.html
Querying this table can require MySQL to allocate a large block of contiguous memory, more than 64 bytes times the number of active pages in the buffer pool. When tables, table rows, partitions, or indexes are deleted, associated pages remain in the ... The INNODB_BUFFER_PAGE_LRU table provides information about the pages in the InnoDB buffer pool; in particular, how they are ordered in the LRU list that determines which pages to evict from the buffer pool when it becomes ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-redo-log.html
If innodb_redo_log_capacity is not defined, and if neither innodb_log_file_size or innodb_log_files_in_group are defined, then the default innodb_redo_log_capacity value is used. If innodb_redo_log_capacity is not defined, and if ... The redo log is ...
https://dev.mysql.com/doc/relnotes/mysql-cluster/8.4/en/dynxml-auto-changelog-difflist-mysqld-8.4.1-ndb-8.4.1.html
It was removed due to a critical issue that could stop the server from restarting following the creation of a very large number of tables (8001 or more). (Bug #36426461) NDB Cluster's pushdown join functionality expects pushed conditions to filter ...Functionality Added or Changed Bugs Fixed Functionality Added or Changed Important Change: Now, when the removal of a data node file or directory fails with a file does not exist (ENOENT) error, this is treated as a successful ...
https://dev.mysql.com/doc/refman/8.4/en/compatibility.html
MySQL Server was originally designed to work with medium-sized databases (10-100 million rows, or about 100MB per table) on small computer systems. We are not afraid to add extensions to SQL or support for non-SQL features if this greatly increases ... This section describes how MySQL relates to the ANSI/ISO SQL ...