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https://dev.mysql.com/doc/heatwave/en/mys-hw-lakehouse-overview.html
External Tables When MySQL HeatWave loads data and creates a table from a file in Object Storage, it is an external Lakehouse table. Lakehouse Engine The lakehouse storage engine allows you to create tables that point to external data sources. As of ...While Lakehouse provides in-memory query processing on data in Object Storage, it does not load data into a DB System ...
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-5.html
This prevented both analyzing the problem (using, for example, SHOW CREATE TABLE) and addressing it (such as with an ALTER TABLE ... This occurred for tables with a row format of Redundant or Compact and the row format was not explicitly defined in ...If this happens in a table's constraints, default expressions, partitioning expressions, or virtual columns, the table could not be ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-locking.html
Client A creates a table containing two index records (90 and 102) and then starts a transaction that places an exclusive lock on index records with an ID greater than 100. Intention Locks InnoDB supports multiple granularity locking which permits ...Shared and Exclusive Locks Intention Locks Record Locks Gap Locks Next-Key Locks Insert Intention Locks AUTO-INC Locks Predicate Locks for Spatial Indexes Shared and Exclusive Locks InnoDB implements standard row-level locking where there are two types of locks, shared (S) locks and exclusive (X) ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-iris-quickstart.html
Prepare Datasets Create and use the the database ml_data to store the table of data. mysql> CREATE SCHEMA ml_data; mysql> USE ml_data; Create the table of training data. mysql> CREATE TABLE `iris_train` ( `sepal length` float DEFAULT NULL, `sepal ...
https://dev.mysql.com/doc/refman/8.4/en/storage-engine-setting.html
When you create a new table, you can specify which storage engine to use by adding an ENGINE table option to the CREATE TABLE statement: -- ENGINE=INNODB not needed unless you have set a different -- default storage engine. CREATE TABLE t1 (i INT) ...For example, in a replication setup, perhaps your source server uses InnoDB tables for maximum safety, but the replica servers use other storage engines for speed at the expense of durability or ...
https://dev.mysql.com/doc/mysql-monitor/8.0/en/performance-advisors-ref.html
Excessive Disk Temporary Table Usage Detected If the space required to build a temporary table exceeds either tmp_table_size or max_heap_table_size, MySQL creates a disk-based table in the server's tmpdir directory. For performance reasons it is ...
https://dev.mysql.com/doc/mysql-ai/9.5/en/mys-mysqlai-ml-model-import.html
Models in ONNX format (.onnx) cannot be loaded directly into a MySQL table. Before running ML_MODEL_IMPORT, follow the instructions in Import an External ONNX Model to pre-process and then load the model into a temporary table to use with AutoML.
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/bugs.backup.html
When creating a backup using transportable tablespace (TTS) for a server containing tables with a mix of the Antelope and Barracuda file formats, do not apply full locking on the tables (that is, do not specify --use-tts=with-full-locking). Backup ...Here is a list of limitations of MySQL Enterprise Backup: In some cases, backups of non-transactional tables such as MyISAM tables could contain additional uncommitted ...
https://dev.mysql.com/doc/refman/8.4/en/insert.html
For information about generated columns, see Section 15.1.20.8, “CREATE TABLE and Generated Columns”. | TABLE table_name | VALUES row_constructor_list } [ON DUPLICATE KEY UPDATE assignment_list] value: {expr | DEFAULT} value_list: value [, ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-model-sharing.html
Run the SHOW CREATE TABLE command to confirm the table was created with the recommended parameters for importing. This topic describes how to grant other users access to a model you create. Share Your Models To share a model you created, you can ...