30.4.5.2 The extract_table_from_file_name() Function

Given a file path name, returns the path component that represents the table name.

This function is useful when extracting file I/O information from the Performance Schema that includes file path names. It provides a convenient way to display table names, which can be more easily understood than full path names, and can be used in joins against object table names.

Parameters

• path VARCHAR(512): The full path to a data file from which to extract the table name.

Return Value

A VARCHAR(64) value.

Example

mysql> SELECT sys.extract_table_from_file_name('/usr/local/mysql/data/world/City.ibd');
+--------------------------------------------------------------------------+
| sys.extract_table_from_file_name('/usr/local/mysql/data/world/City.ibd') |
+--------------------------------------------------------------------------+
| City                                                                     |
+--------------------------------------------------------------------------+