The contents of value lists which are returned values of read operations are dependent on read formats. Here, we show the case where the read format is specified as the whole table(Format=*).
Following is the case where value lists are returned in the 4th
argument, "VLstream" of read_record/5.
VLstream::=[] 
[BufVar 
VLstream]
BufVar::=Buffer 
end
Buffer::=[Record] 
[Record 
Buffer]
Record::={RID_element, Value_list}
Value_list::={V1,V2,...,Vi,...,Vn}
The value of "Value_list" is for the schema shown below, i.e.
"Vi" corresponds to "Attri".
Schema={Table_name, primitive,{Attr1,Attr2,...,Attri,...,Attrn},
NestSequence,HorizontalDecompositionInfo}
Vi::=Simple_value 
Group_value 
Repeating_simple(RS)_value 
Repeating_group(RG)_value
Simple_value::= INTEGER 
STRING 
TERM 
nil 
bottom
Group_value::={Child_value,...}
Child_value::=Simple_value 
Group_value 
RS_value 
RG_value
RS_value::=[RS_occ 
RS_value]
RS_occ::={Simple_value,...}
RG_value::=[RG_occ 
RG_value]
RG_occ::={Child_value,...}