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https://dev.mysql.com/doc/refman/8.4/en/multiple-key-caches.html
For example: mysql> SET GLOBAL keycache1.key_buffer_size=128*1024; To destroy a key cache, set its size to zero: mysql> SET GLOBAL keycache1.key_buffer_size=0; You cannot destroy the default key cache. Any attempt to do this is ignored: mysql> SET ... Note As of MySQL 8.4, the compound-part structured-variable syntax discussed here for referring to multiple MyISAM key caches is ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-log-statistics.html
For inserts and updates, this is proportional to the number of columns written, and the size of their data. This statistic increases in size as the utilization of the TCP/IP buffer improves. The NDB management client's CLUSTERLOG STATISTICS command ...
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 ...
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-3.html
(Bug #36593265) In some cases a join involving a very large number of rows and many tables was not processed correctly. (Bug #36702176) Microsoft Windows: On Windows, the MySQL Configurator data directory file browsing mechanism required the ... C ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-information-schema-system-tables.html
row *************************** TABLE_ID: 71 NAME: test/t1 FLAG: 1 N_COLS: 6 SPACE: 57 ROW_FORMAT: Compact ZIP_PAGE_SIZE: 0 INSTANT_COLS: 0 Table t1 has a TABLE_ID of 71. Also provided are tablespace ROW_FORMAT, PAGE_SIZE, and several other ...There ... You can extract metadata about schema objects managed by InnoDB using InnoDB INFORMATION_SCHEMA ...