`information_schema.tables.index_length`

mysql

type: BIGINT NULL

5.7-8

type: NULL

Note:

Length of the index file.

5.1-10.8

type: BIGINT(21) NULL

Note:

The index length. INDEX_LENGTH = TABLE_ROWS * the sum of lengths of the columns in the index tuple. The replicas of TiKV are not taken into account.

4-6.1