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MySQL 5.7 Reference Manual
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25.8.7.58 mysql_refresh()

int mysql_refresh(MYSQL *mysql, unsigned int options)

Description
Note

As of MySQL 5.7.11, mysql_refresh() is deprecated and will be removed in a future version of MySQL. Instead, use mysql_query() to execute a FLUSH statement.

This function flushes tables or caches, or resets replication server information. The connected user must have the RELOAD privilege.

The options argument is a bit mask composed from any combination of the following values. Multiple values can be OR'ed together to perform multiple operations with a single call.

  • REFRESH_GRANT

    Refresh the grant tables, like FLUSH PRIVILEGES.

  • REFRESH_LOG

    Flush the logs, like FLUSH LOGS.

  • REFRESH_TABLES

    Flush the table cache, like FLUSH TABLES.

  • REFRESH_HOSTS

    Flush the host cache, like FLUSH HOSTS.

  • REFRESH_STATUS

    Reset status variables, like FLUSH STATUS.

  • REFRESH_THREADS

    Flush the thread cache.

  • REFRESH_SLAVE

    On a slave replication server, reset the master server information and restart the slave, like RESET SLAVE.

  • REFRESH_MASTER

    On a master replication server, remove the binary log files listed in the binary log index and truncate the index file, like RESET MASTER.

Return Values

Zero for success. Nonzero if an error occurred.

Errors

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