Adding ANALYZE TABLE Statements in mysqldump Output

The mysqldump command is used in MySQL to create backups of databases. When using the --column-statistics option, additional information such as column statistics and ANALYZE TABLE statements are included in the output. This option is particularly useful for optimizing performance by providing insights into the distribution and cardinality of data within columns.

Here are several examples demonstrating the usage of mysqldump with the --column-statistics option:

Example 1: Dump a database with column statistics included.
mysqldump --column-statistics dbname > dbname.sql

This command exports the database dbname to dbname.sql with ANALYZE TABLE statements and column statistics included in the dump file.

Example 2: Dump a specific table with column statistics.
mysqldump --column-statistics dbname tablename > tablename.sql

This command exports the tablename from database dbname to tablename.sql along with relevant column statistics.

Example 3: Dump multiple databases with column statistics.
mysqldump --column-statistics --databases dbname1 dbname2 > databases.sql

This command dumps dbname1 and dbname2 into databases.sql with column statistics and ANALYZE TABLE statements included.

Example 4: Dump all databases with column statistics.
mysqldump --column-statistics --all-databases > alldatabases.sql

This command exports all databases on the MySQL server into alldatabases.sql with comprehensive column statistics and ANALYZE TABLE statements.

Example 5: Dump a database to standard output with column statistics.
mysqldump --column-statistics dbname | gzip > dbname.sql.gz

This command dumps the database dbname with column statistics and pipes the output through gzip compression into dbname.sql.gz.

Example 6: Dump a database and exclude triggers with column statistics.
mysqldump --column-statistics --skip-triggers dbname > dbname_no_triggers.sql

This command exports the database dbname while excluding triggers, but including column statistics in dbname_no_triggers.sql.

Example 7: Dump a database, include routines and events with column statistics.
mysqldump --column-statistics --routines --events dbname > dbname_with_routines.sql

This command exports dbname including stored routines and events, alongside column statistics, into dbname_with_routines.sql.

Example 8: Dump a database and specify a host with column statistics.
mysqldump --column-statistics --host=remotehost dbname > dbname_remote.sql

This command exports the database dbname from a remote MySQL host remotehost with column statistics included in dbname_remote.sql.

Example 9: Dump a database with extended insert statements and column statistics.
mysqldump --column-statistics --extended-insert dbname > dbname_extended.sql

This command exports dbname using extended insert statements for faster insertion and includes column statistics in dbname_extended.sql.

Example 10: Dump a database with table structure only and column statistics.
mysqldump --column-statistics --no-data dbname > dbname_structure.sql

This command exports only the structure (no data) of dbname with column statistics into dbname_structure.sql.

To verify if the mysqldump command with --column-statistics executed correctly, check the contents of the generated SQL file. Look for ANALYZE TABLE statements and additional comments regarding column statistics. This confirms that the option was applied during the database dump.

Read Also

Setting Character Sets Directory for mysqldump
Binding IP Address for mysqldump
Applying Slave Statements in mysqldump (Deprecated)
Apply Replica Statements in mysqldump Output
Allowing Keywords as Column Names in mysqldump Output