PDF (US Ltr)
- 43.3Mb
PDF (A4)
- 43.4Mb
Man Pages (TGZ)
- 297.2Kb
Man Pages (Zip)
- 402.4Kb
Info (Gzip)
- 4.3Mb
Info (Zip)
- 4.3Mb
Search Results
https://dev.mysql.com/doc/refman/8.0/en/ndb-restore-different-number-nodes.html
Note When changing the total number of LCP threads or LQH threads per node group, you should recreate the schema from backup created using mysqldump. This step is necessary only if the total number of LCP threads or LQH threads per node group is ...
https://dev.mysql.com/doc/refman/8.0/en/network-namespace-support.html
Group Replication, only when using the MySQL communication stack to establish group communication connections (from MySQL 8.0.27). A network namespace is a logical copy of the network stack from the host system. Network namespaces are useful for ...
https://dev.mysql.com/doc/refman/8.0/en/order-by-optimization.html
(This is the first table in the EXPLAIN output that does not have a const join type.) The query has different ORDER BY and GROUP BY expressions. (The resulting sort order may be completely different from the order for ABS(a), of course.) SELECT ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-selection.html
You can also use aggregate functions with HAVING and GROUP BY options. Explicit selection of partitions and subpartitions for rows matching a given WHERE condition is supported. Partition selection is similar to partition pruning, in that only ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-binary-log-transaction-compression-stats-table.html
Compressed transactions are grouped by the compression algorithm used, and uncompressed transactions are grouped together with the compression algorithm stated as NONE, so the compression ratio can be calculated. This table shows statistical ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-filtering-names.html
Names given for filtering operations can be as specific or general as required. For example, to select all file I/O instruments, it is better to use a pattern that includes the entire instrument name prefix: ... WHERE NAME LIKE 'wait/io/file/%'; A ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-firewall-membership-table.html
The firewall_membership table has these columns: GROUP_ID The group profile name. The firewall_membership table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It is used in conjunction with the ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-connection-status-table.html
GROUP_NAME If this server is a member of a group, shows the name of the group the server belongs to. This table shows the current status of the I/O thread that handles the replica's connection to the source, information on the last transaction ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-socket-summary-tables.html
Each socket summary table has one or more grouping columns to indicate how the table aggregates events. This column can be grouped on to isolate, for example, client activity from that of the server listening sockets. These socket summary tables ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-statement-digests.html
Normalization permits statements that are similar to be grouped and summarized to expose information about the types of statements the server is executing and how often they occur. If the table becomes full, the Performance Schema groups statements ... The MySQL server is capable of maintaining statement digest ...