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https://dev.mysql.com/doc/heatwave/en/mys-hw-rpd_vector_indexes-table.html
The rpd_vector_indexes table provides information about vector indexes created for different vector store or embedding tables. SPACE: Vector distance metric, which can be one of: DOT, EUCLIDEAN, and COSINE. Queries using the same distance metric ...
https://dev.mysql.com/doc/relnotes/heatwave/en/news-8-0-25.html
For example, the following query can now be offloaded to MySQL HeatWave for execution: SELECT DISTINCT a FROM t1 ORDER BY c DESC; (Bug #32583856) Query plan statistics are now collected and stored in a statistics cache when a query is executed in ...
https://dev.mysql.com/doc/relnotes/heatwave/en/news-8-0-31.html
MySQL HeatWave AutoML Functionality Added or Changed MySQL HeatWave AutoML MySQL HeatWave AutoML queries are now monitored and recorded in the Performance Schema tables rpd_query_stats and rpd_exec_stats. Where a single MySQL HeatWave AutoML query ...
https://dev.mysql.com/doc/heatwave-aws/en/heatwave-aws-cloudwatch-metrics.html
CloudWatch Monitoring Metrics 17.1.1 CloudWatch Monitoring Metrics CloudWatch metrics can be used to monitor resources, diagnose issues, and troubleshoot your DB systems and their MySQL HeatWave Clusters. After enabling CloudWatch monitoring on a ...
https://dev.mysql.com/doc/refman/8.4/en/controlling-query-plan-evaluation.html
The task of the query optimizer is to find an optimal plan for executing an SQL query. Because the difference in performance between “good” and “bad” plans can be orders of magnitude (that is, seconds versus hours or even days), most query ...
https://dev.mysql.com/doc/refman/8.4/en/full-text-adding-collation.html
Warning User-defined collations are deprecated; you should expect support for them to be removed in a future version of MySQL. The server issues a warning for any use of COLLATE user_defined_collation in an SQL statement; a warning is also issued ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-background.html
The most common way to create a fault-tolerant system is to resort to making components redundant, in other words the component can be removed and the system should continue to operate as expected. This creates a set of challenges that raise ...
https://dev.mysql.com/doc/refman/8.4/en/index-btree-hash.html
Understanding the B-tree and hash data structures can help predict how different queries perform on different storage engines that use these data structures in their indexes, particularly for the MEMORY storage engine that lets you choose B-tree or ...
https://dev.mysql.com/doc/refman/8.4/en/innochecksum.html
This tool reads an InnoDB tablespace file, calculates the checksum for each page, compares the calculated checksum to the stored checksum, and reports mismatches, which indicate damaged pages. It was originally developed to speed up verifying the ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-config-values.html
The config_values table provides information about the current state of node configuration parameter values. Each row in the table corresponds to the current value of a parameter on a given node. The config_values table contains the following ...