mi_integer mi_id_rowid(MI_AM_ROWID_DESC *rowidDesc)

rowidDesc

points to the row-ID descriptor.

The am_insert purpose function calls mi_id_rowid() to obtain a value and add it to the index entry with the key.

The integer identifies the row that this key indexes. For example, the row identifier might offset a fragment identifier to complete the location of the row.

See the description of accessor functions mi_id_setrowid(), mi_id_fragid(), and mi_id_setfragid().