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https://dev.mysql.com/doc/refman/8.4/en/system-schema.html
Time Zone System Tables These system tables contain time zone information: time_zone: Time zone IDs and whether they use leap seconds. Data Dictionary Tables Grant System Tables Object Information System Tables Log System Tables Server-Side Help ...
https://dev.mysql.com/doc/refman/8.4/en/string-type-syntax.html
The effective maximum length of a VARCHAR is subject to the maximum row size (65,535 bytes, which is shared among all columns) and the character set used. For example, utf8mb3 characters can require up to three bytes per character, so a VARCHAR ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-compression-internals.html
Every time something inside a block is modified, the whole block is recompressed before it is written to disk. Secondary indexes in InnoDB tables are also B-trees, containing pairs of values: the index key and a pointer to a row in the clustered ...
https://dev.mysql.com/doc/heatwave/en/mys-hwgenai-hw-chat.html
Segments for which the distance from the input query exceeds the specified maximum distance threshold are excluded from content retrieval. history_length: specifies the maximum history length, which is the number of question and answers, to include ... The HEATWAVE_CHAT routine automatically calls the ML_RAG routine which loads an LLM and runs a semantic search on the available vector stores by ...
https://dev.mysql.com/doc/mysql-ai/9.4/en/mys-mysqlai-chat.html
Segments for which the distance from the input query exceeds the specified maximum distance threshold are excluded from content retrieval. history_length: specifies the maximum history length, which is the number of question and answers, to include ... The HEATWAVE_CHAT routine automatically calls the ML_RAG routine which loads an LLM and runs a semantic search on the available vector stores by ...
https://dev.mysql.com/doc/mysql-monitor/8.0/en/mem-advisor-intro-thresholds-ref.html
Others use timed durations, such as the average statement execution time. Time-based Thresholds The majority of the time-based thresholds use simple duration values, such as seconds, minutes and so on. Some use percentages, such as percentage of ...
https://dev.mysql.com/doc/refman/8.4/en/group-replication-configuring-consistency-guarantees.html
A transaction cannot be on-hold forever, and if the time held exceeds wait_timeout it returns an ER_GR_HOLD_WAIT_TIMEOUT error. Transactions whose consistency level is not EVENTUAL hold execution until a timeout, configured by wait_timeout value is ... Although the Transaction Synchronization Points section explains that conceptually there are two synchronization points from which you can choose: on read or on write, these terms were a simplification and the terms used in Group Replication are: before and after transaction ...
https://dev.mysql.com/doc/workbench/en/wb-what-is-new-62.html
Select "Microsoft Access" as your source database in the wizard, use MySQL as your target source database, and then execute. Visual Explain and Execution Plan Improvements The Visual Explain Execution Plan feature was improved. The full SQL syntax ... This section summarizes many of the new features added to MySQL Workbench 6.2, in relation to the MySQL Workbench 6.1 ...
https://dev.mysql.com/doc/relnotes/connector-j/en/news-8-0-20.html
It was because Connector/J always converted a Date value to the server's time zone when storing it on the server as a MySQL DATE; but since a MySQL DATE does not have any time value, the hour, minute, and second parts of the original date was ...(WL ... Version 8.0.20 is the latest General Availability release of the 8.0 series of MySQL ...
https://dev.mysql.com/doc/connectors/en/connector-j-query-attributes.html
Connector/J supports Query Attributes when it has been enabled on the server by installing the query_attributes component (see Prerequisites for Using Query Attributes for details). Attributes are set for a query by using the setAttribute() method ...