The INFORMATION_SCHEMA PARTITIONS Table For  NDB  tables, you can also obtain this information using the  ndb_desc  utility. The length of the index file for this partition or subpartition, in bytes. For partitions of  NDB  tables, whether the tables use implicit or explicit partitioning, the  INDEX_LENGTH column value is always 0. However, you can obtain equivalent information using the  ndb_desc  utility. The number of bytes allocated to the partition or subpartition but not used. For  NDB  tables, you can also obtain this information using the  ndb_desc  utility. The time that the partition or subpartition was created. The time that the partition or subpartition was last modified. The last time that the table to which this partition or subpartition belongs was checked. For partitioned  InnoDB  tables, the value is always  NULL . The checksum value, if any; otherwise  NULL . The text of the comment, if the partition has one. If not, this value is empty. The maximum length for a partition comment is defined as 1024 characters, and the display width of the PARTITION_COMMENT  column is also 1024, characters to match this limit. This is the nodegroup to which the partition belongs. This is relevant only to NDB Cluster tables; otherwise, the value is always  0 . The name of the tablespace to which the partition belongs. The value is always  DEFAULT , unless the table uses the  NDB  storage engine (see the  Notes  at the end of this section). • INDEX_LENGTH • DATA_FREE • CREATE_TIME • UPDATE_TIME • CHECK_TIME • CHECKSUM • PARTITION_COMMENT • NODEGROUP • TABLESPACE_NAME Notes • PARTITIONS  is a nonstandard  INFORMATION_SCHEMA  table. •A table using any storage engine other than  NDB  and which is not partitioned has one row in the  PARTITIONS  table. However, the values of the  PARTITION_NAME ,  SUBPARTITION_NAME , PARTITION_ORDINAL_POSITION ,  SUBPARTITION_ORDINAL_POSITION ,  PARTITION_METHOD , SUBPARTITION_METHOD ,  PARTITION_EXPRESSION ,  SUBPARTITION_EXPRESSION , and 4807