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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-drop-table.html
--database, -d Command-Line Format --database=name Type String Default Value TEST_DB Name of the database in which the table resides. --ndb-connectstring Command-Line Format --ndb-connectstring=connection_string Type String Default Value [none] Set ...--connect-retries Command-Line Format --connect-retries=# Type Integer Default Value 12 Minimum Value 0 Maximum Value 12 Number of times to retry connection before giving ...
https://dev.mysql.com/doc/refman/5.7/en/thread-commands.html
Refresh The thread is flushing table, logs, or caches, or resetting status variable or replication server information. A thread can have any of the following Command values: Binlog Dump This is a thread on a replication source for sending binary ...
https://dev.mysql.com/doc/refman/5.7/en/using-innodb-tables.html
.frm Files MySQL stores data dictionary information for tables in .frm files in database directories. InnoDB tables are created using the CREATE TABLE statement; for example: CREATE TABLE t1 (a INT, b CHAR (20), PRIMARY KEY (a)) ENGINE=InnoDB; The ...However, the ENGINE clause is useful if the CREATE TABLE statement is to be replayed on a different MySQL Server instance where the default storage engine is not InnoDB or is ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-compression-tuning.html
In addition to user data, the page format includes some internal system data that is not compressed. Given these considerations, for many applications, some tables compress more effectively than others, and you might find that your workload performs ...However, because the efficiency of compression depends on the nature of your data, you can make decisions that affect the performance of compressed tables: Which tables to ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-online-ddl-operations.html
Renaming an index ALTER TABLE tbl_name RENAME INDEX old_index_name TO new_index_name, ALGORITHM=INPLACE, LOCK=NONE; Adding a FULLTEXT index CREATE FULLTEXT INDEX name ON table(column); Adding the first FULLTEXT index rebuilds the table if there is ... Online support details, syntax examples, and usage notes for DDL operations are provided under the following topics in this ...The CREATE INDEX statement only finishes after all transactions ...
https://dev.mysql.com/doc/refman/5.7/en/function-resolution.html
ADDDATE BIT_AND BIT_OR BIT_XOR CAST COUNT CURDATE CURTIME DATE_ADD DATE_SUB EXTRACT GROUP_CONCAT MAX MID MIN NOW POSITION SESSION_USER STD STDDEV STDDEV_POP STDDEV_SAMP SUBDATE SUBSTR SUBSTRING SUM SYSDATE SYSTEM_USER TRIM VARIANCE VAR_POP VAR_SAMP ...Built-In Function Name Parsing Function Name Resolution Built-In Function Name Parsing The parser uses default rules for parsing names of built-in ...
https://dev.mysql.com/doc/refman/5.7/en/rewriter-query-rewrite-plugin.html
Users communicate with the plugin by modifying the set of rules stored in this table. The plugin communicates with users by setting the message column of table rows. MySQL supports query rewrite plugins that can examine and possibly modify SQL ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-user-privileges-table.html
The USER_PRIVILEGES table has these columns: GRANTEE The name of the account to which the privilege is granted, in 'user_name'@'host_name' format. IS_GRANTABLE YES if the user has the GRANT OPTION privilege, NO otherwise. The value can be any ...
https://dev.mysql.com/doc/refman/5.7/en/replication-multi-source-adding-binlog-master.html
These steps assume that you have enabled binary logging on the replication source server using --log-bin, the replica is using TABLE based replication metadata repositories, and that you have enabled a replication user and noted the current binary ...Use the CHANGE MASTER TO statement to configure a replication channel for each source on the replica (see Section 16.2.2, “Replication ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-hosts-table.html
This is NULL for an internal thread, or for a user session that failed to authenticate. To set the table size explicitly, set the performance_schema_hosts_size system variable at server startup. The hosts table contains a row for each host from ...