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https://dev.mysql.com/doc/heatwave/en/mys-hw-advisor-data-placement.html
row *************************** query_id: 15 LEFT(query_text,160): CREATE TABLE flight_from_US SELECT * FROM flight WHERE `from` IN (SELECT airport_id FROM airport_geo WHERE country="UNITED STATES") *************************** 3. row ...Data ...For ...
https://dev.mysql.com/doc/mysql-ai/9.4/en/mys-mysqlai-ml-train.html
table_name: The name of the table that contains the labeled training dataset. The table name must be valid and fully qualified, so it must include the database name, database_name.table_name. The table cannot exceed 10 GB, 100 million rows, or 1017 ... Run the ML_TRAIN routine on a training dataset to produce a trained machine learning ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-compression-background.html
An InnoDB table created with ROW_FORMAT=COMPRESSED can use a smaller page size on disk than the configured innodb_page_size value. The compressed page size is specified through the CREATE TABLE or ALTER TABLE KEY_BLOCK_SIZE parameter. Specify a ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-secondary-load.html
You can load tables into HeatWave using the SECONDARY_LOAD clause. Loading Tables Statement To load a table into MySQL HeatWave, specify the SECONDARY_LOAD clause in an ALTER TABLE statement and use the following syntax. ALTER TABLE table_name ...
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-4.html
(Bug #37075154) Removed an error in mysql_prepare_create_table() (in the file sql/sql_table.cc) found when compiling MySQL with XCode 16. Alternatively, you can drop and re-create such indexes immediately following the upgrade, but before making use ...We fix this oversight by ensuring that the string is created with the correct character ... Account Management Notes C API Notes Character Set Support Compilation Notes Component Notes Firewall Notes Installation Notes Optimizer Notes Performance Schema Notes Functionality Added or Changed Bugs Fixed Account ...
https://dev.mysql.com/doc/internals/en/guided-tour-skeleton.html
Will be included in the TABLE structure */ handler(TABLE *table_arg) : table(table_arg),active_index(MAX_REF_PARTS), ref(0),ref_length(sizeof(my_off_t)), block_size(0),records(0),deleted(0), data_file_length(0), max_data_file_length(0), ...Walking ... And now we're going to walk through something harder, namely the ...
https://dev.mysql.com/doc/refman/8.4/en/data-dictionary-schema.html
If an upgrade is necessary and supported, the server creates data dictionary tables with updated definitions, copies persisted metadata to the new tables, atomically replaces the old tables with the new ones, and reinitializes the data dictionary.
https://dev.mysql.com/doc/refman/8.4/en/optimizing-queries-myisam.html
Some general tips for speeding up queries on MyISAM tables: To help MySQL better optimize queries, use ANALYZE TABLE or run myisamchk --analyze on a table after it has been loaded with data. (For unique indexes, this is always 1.) MySQL uses this ...This updates a value for each index part that indicates the average number of rows that have the same ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-info.html
Methods of obtaining such information include the following: Using the SHOW CREATE TABLE statement to view the partitioning clauses used in creating a partitioned table. A new row event is created for a modification that takes place in a different ...Using the SHOW TABLE STATUS statement to determine whether a table is ... This section discusses obtaining ...
https://dev.mysql.com/doc/workbench/en/wbcopytables.html
The table must have a numeric UNIQUE NOT NULL or PRIMARY KEY that is used to create a WHERE expression for the range. wbcopytables is a command-line utility included in MySQL Workbench that enables you to copy table data from a supported source ...