The index module defines two classes, Index and IndexDict, derived from DbSchemaObject and DbObjectDict, respectively.
Class Index is derived from ~pyrseas.dbobject.DbSchemaObject and represents an index on a database table, other than a primary key or unique constraint index. Its keylist attributes are the schema name, the table name and the index name. Note that index names are supposed to be unique with a given schema so the table name doesn't have to be part of the keylist, but has been retained to facilitate certain operations.
Class IndexDict is derived from ~pyrseas.dbobject.DbObjectDict and represents the collection of indexes in a database.