25.6.17.36 The ndbinfo files Table

The files tables provides information about files and other objects used by NDB disk data tables, and contains the columns listed here:

• id

  Object ID

• type

  The type of object; one of Log file group, Tablespace, Undo file, or Data file

• name

  The name of the object

• parent

  ID of the parent object

• parent_name

  Name of the parent object

• free_extents

  Number of free extents

• total_extents

  Total number of extents

• extent_size

  Extent size (MB)

• initial_size

  Initial size (bytes)

• maximum_size

  Maximum size (bytes)

• autoextend_size

  Autoextend size (bytes)

For log file groups and tablespaces, parent is always 0, and the parent_name, free_extents, total_extents, extent_size, initial_size, maximum_size, and autoentend_size columns are all NULL.

The files table is empty if no disk data objects have been created in NDB. See Section 25.6.11.1, “NDB Cluster Disk Data Objects”, for more information.

See also Section 28.3.15, “The INFORMATION_SCHEMA FILES Table”.