Search Results
https://dev.mysql.com/doc/heatwave/en/mys-hw-lakehouse-loading-data-par.html
Review the following examples to see the different ways to use pre-authenticated requests (PAR) to specify files when creating external tables manually. Create the external tables that will ingest the loaded data by either using SQL syntax or JSON ...Types of PARs You can create the following types of PARs: Bucket or prefix PAR: This type of PAR ends with ...
https://dev.mysql.com/doc/refman/8.4/en/general-tablespaces.html
A general tablespace is a shared InnoDB tablespace that is created using CREATE TABLESPACE syntax. The server keeps tablespace metadata in memory for the lifetime of a tablespace. Multiple tables in fewer general tablespaces consume less memory for ...To make an unknown directory known to InnoDB, add the directory to the innodb_directories argument ...
https://dev.mysql.com/doc/heatwave/en/mys-hwgenai-ml-rag-table.html
The ML_RAG_TABLE routine runs multiple retrieval-augmented generation (RAG) queries in a batch, in parallel. Note In versions older than MySQL 9.2.1, to alter an existing table or create a new table, MySQL requires you to set the ...The output ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-install-example-data.html
Working with database tables and data in NDB Cluster is not much different from doing so in standard MySQL. There are two key points to keep in mind: For a table to be replicated in the cluster, it must use the NDBCLUSTER storage engine. To specify ... Note The information in this section applies to NDB Cluster running on both Unix and Windows ...
https://dev.mysql.com/doc/refman/8.4/en/grant.html
(Alternatively, if you have the UPDATE privilege for the grant tables in the mysql system schema, you can grant any account any privilege.) When the read_only system variable is enabled, GRANT additionally requires the CONNECTION_ADMIN privilege (or ...[WITH GRANT OPTION] [AS user [WITH ROLE DEFAULT | NONE | ALL | ALL EXCEPT role [, role ] ...
https://dev.mysql.com/doc/refman/8.4/en/replication-options-replica.html
On the source and each replica, you must set the server_id system variable to establish a unique replication ID in the range from 1 to 232 − 1. To specify more than one database, use this option multiple times, once for each database; however, ...
https://dev.mysql.com/doc/refman/8.4/en/myisam-repair.html
The discussion in this section describes how to use myisamchk on MyISAM tables (extensions .MYI and .MYD). You can also use the CHECK TABLE and REPAIR TABLE statements to check and repair MyISAM tables. See Section 15.7.3.2, “CHECK TABLE ...On ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-temptables.html
In MySQL 8.4, when binlog_format is set to ROW or MIXED, statements that exclusively use temporary tables are not logged on the source, and therefore the temporary tables are not replicated. Statements that involve a mix of temporary and ...They ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-compression-internals.html
This section describes some internal implementation details about compression for InnoDB tables. These properties make this compression technique unsuitable for use in an update-intensive database system. When compression is working well for a data ...The information presented here may be helpful in tuning for performance, but is not necessary to know for basic use of ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-persistent-stats.html
Optimizer statistics are persisted to disk when innodb_stats_persistent=ON or when individual tables are defined with STATS_PERSISTENT=1. Formerly, optimizer statistics were cleared when restarting the server and after some other types of ... The ...