db::IndexDescSet

add_index

IndexDesc & db::IndexDescSet::add_index ( const NameChar *  name, IndexMode  index_mode   ) Add an index. Parameters: name  Name use to identify the index in Table::set_sort_order and when modifying the schema. index_mode  An index can be DB_UNIQUE or DB_MULTISET. A unique index prevents duplicate rows which contain identical values for all fields in the index. A multiset index does not impose this restriction. Returns: A reference to the index description. Use IndexDesc::add_field to add indexed columns to the returned class.