*COMDECK SBRQSTDCL
          ITEM RQTSTACKWD U(0,0,60);   # USED TO REFERENCE A WORD ENTRY#
                                       # THE QIN TABLE.                #
#STACK ENTRIES                                                         #
#   STACK TYPE   COMMON TO FORMATS 1. 2 AND 3                          #
          ITEM RQTSTACKTYPE U(0,0,3);  # INDICATES STACK ENTRY TYPE.   #
                                       # 1 = DBI - NO MAPPING.         #
                                       # 2 = DBI - MAPPING.            #
                                       # 3 = DATA-NAME.                #
                                       # 4 = LITERAL.                  #
                                       # 5 = OPERATOR.                 #
#   OFFSET POINTER TO THE ITEM ENTRY FORMAT 1 ONLY                     #
          ITEM RQTITEMORD U(0,3,15);   # ORDINAL NUMBER OF THE SUBJECT #
                                       # DBI.                          #
#   STACK LENGTH FOR THIS LENGTH  FORMAT 1 ONLY                        #
          ITEM RQTSTACKLEN U(0,21,9);  # LENGTH IN WORDS OF ALL THE    #
                                       # STACK ENTRIES BELONGING TO    #
                                       # A SINGLE WHERE CLAUSE. THIS   #
                                       # FIELD APPEARS IN THE FIRST    #
                                       # STACK ENTRY OF THE WHERE      #
                                       # CLAUSE, WHICH IS ALWAYS A DBI.#
#   SCHEMA AREA RANK COMMON TO FORMATS 1. 2 AND 3                      #
          ITEM RQTAREARANK U(0,30,12); # A VALUE ASSIGNED TO AN AREA   #
                                       # ACCORDING TO ITS LOCATION IN  #
                                       # THE RELATION DEFINED IN THE   #
                                       # SCHEMA. THE SUB-SCHEMA COMPIL-#
                                       # ER CALCULATES THE AREA RANK   #
                                       # VALUE WHEN SCANNING THE RST   #
                                       # TABLE. THE AREA RANK VALUE IS #
                                       # THE SAME FOR ALL STACK        #
                                       # ENTRIES DEFINED IN A SINGLE   #
                                       # WHERE CLAUSE.                 #
#   OFFSET POINTER TO SCHEMA ATTRIBUTE ENTRY FORMAT 1                  #
#   OFFSET POINTER TO DATA-NAME OR LITERAL ATTRIBUTE ENTRY FORMAT 2    #
#   OFFSET POINTER TO OPERATOR ATTRIBUTE ENTRY FORMAT 3                #
          ITEM RQTATRIBTEWA U(0,42,18);# OFFSET POINTER FROM THE HEADER#
                                       # WORD (0) OF THE RQT TABLE TO  #
                                       # TO THE ATTRIBUTE ENTRY THAT   #
                                       # CORRESPONDS TO THE STACK ENTRY#
                                       # IN THE RQT TABLE.             #
#   OFFSET POINTER TO THE ITEM ENTRY                                   #
          ITEM RQTITEMPTR U(0,3,18);   # OFFSET PORNTER FROM THE HDR   #
                                       # WORD (0) OF THE RQT TABLE TO  #
                                       # THE ITEM ENTRY IN THE SUB-    #
                                       # SCHEMA.                       #
#   RECORD ORDINAL                                                     #
          ITEM RQTRECORDORD U(0,3,12); # CONTAINS THE SUB-SCHEMA RECORD#
                                       # ORDINAL NUMBER OF THE RECORD  #
                                       # ENTRY SPECIFIED IN THE        #
                                       # RESTRICT CLAUSE.              #
#   OPERATOR CODE                                                      #
          ITEM RQTOPCDE U(0,15,6);     # CONTAINS THE OPERATOR CODES   #
                                       # (SAME AS DEFINED IN THE       #
                                       # ATTRIBUTE ENTRY.              #
