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https://dev.mysql.com/doc/refman/8.0/en/performance-schema-obtaining-parent-events.html
Rows of this table have a THREAD_ID column indicating the thread ID of the session that owns the lock, and an EVENT_ID column indicating the Performance Schema event that caused the lock. To find lock information, data_locks is the table containing ...The relation is based on a nested set data model, so the join has several ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-status-variables.html
Performance Schema status variables have the following meanings: Performance_schema_accounts_lost The number of times a row could not be added to the accounts table because it was full. Performance_schema_digest_lost The number of digest instances ...This can be nonzero if the value of performance_schema_digests_size is too ...
https://dev.mysql.com/doc/refman/8.0/en/windows-pluggable-authentication.html
As a result of this exchange, the server creates a security context object that represents the identity of the client in the Windows OS. Windows pluggable authentication provides these capabilities: External authentication: Windows authentication ...
https://dev.mysql.com/doc/refman/8.0/en/forcing-innodb-recovery.html
With an innodb_force_recovery value of 3 or less you can DROP or CREATE tables. To investigate database page corruption, you might dump your tables from the database with SELECT ... In such cases, you can use the innodb_force_recovery option to ...
https://dev.mysql.com/doc/refman/8.0/en/host-cache.html
The Performance Schema host_cache table exposes the contents of the host cache so that it can be examined using SELECT statements. It does not use the cache for TCP connections established using a loopback interface address (for example, 127.0.0.1 ... The MySQL server maintains an in-memory host cache that contains information about clients: IP address, host name, and error ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-consistent-read.html
This exception causes the following anomaly: If you update some rows in a table, a SELECT sees the latest version of the updated rows, but it might also see older versions of any rows. If other sessions simultaneously update the same table, the ...
https://dev.mysql.com/doc/refman/8.0/en/load-data-local-security.html
Dump loading utility util.loadDump() Import dump files created using MySQL Shell's instance, schema, or table dump utility into a MySQL HeatWave Service DB System or a MySQL Server instance. The LOAD DATA statement loads a data file into a table.
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-pre-filtering.html
Modifications to any of these tables affect monitoring immediately, with the exception that modifications to the setup_actors table affect only foreground threads created subsequent to the modification, not existing threads. Pre-filtering can be ...
https://dev.mysql.com/doc/refman/8.0/en/show-replica-status.html
This is similar to the information available from the SHOW REPLICA STATUS statement, but represented in table form. The relay log file name (Relay_Log_File) is set according to the relay_log_recovery setting, either a new file that was created at ...
https://dev.mysql.com/doc/refman/8.0/en/fulltext-search-ngram.html
Creating a FULLTEXT Index that Uses the ngram Parser To create a FULLTEXT index that uses the ngram parser, specify WITH PARSER ngram with CREATE TABLE, ALTER TABLE, or CREATE INDEX. The following example demonstrates creating a table with an ngram ...For a stopword list applicable to Chinese, Japanese, or Korean, you must create your ... The built-in MySQL full-text parser uses the white space between words as a delimiter to determine where words begin and end, ...