IN CONDITION FOR MULTIPLE INDEX 

IN CONDITION FOR MULTIPLE INDEX is a search strategy. An IN condition was specified for the first column of a multi-column index), or equality conditions were specified for the first k-1 columns of an index of this type and an IN condition was specified for the k-th column. The system accesses the corresponding table lines directly, with the help of the appropriate inversion lists.

See also:

List of All Search Strategies