src/include/access/sysattr.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * sysattr.h
   4  *        POSTGRES system attribute definitions.
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * src/include/access/sysattr.h
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef SYSATTR_H
  15 #define SYSATTR_H
  16
  17
  18 /*
  19  * Attribute numbers for the system-defined attributes
  20  */
  21 #define SelfItemPointerAttributeNumber                  (-1)
  22 #define MinTransactionIdAttributeNumber                 (-2)
  23 #define MinCommandIdAttributeNumber                             (-3)
  24 #define MaxTransactionIdAttributeNumber                 (-4)
  25 #define MaxCommandIdAttributeNumber                             (-5)
  26 #define TableOidAttributeNumber                                 (-6)
  27 #define FirstLowInvalidHeapAttributeNumber              (-7)
  28
  29 #endif                                                  /* SYSATTR_H */