new (KirbyBase::KBTable::KBIndex)

    # File lib/kirbybase.rb, line 3435
        def initialize(table, index_fields)
            @last_update = Time.new
            @idx_arr = []
            @table = table
            @index_fields = index_fields
            @col_poss = index_fields.collect {|i| table.field_names.index(i) }
            @col_names = index_fields
            @col_types = index_fields.collect {|i|
             table.field_types[table.field_names.index(i)]}
        end