postgresql/src/include/access/sysattr.h

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/*-------------------------------------------------------------------------
*
* sysattr.h
* POSTGRES system attribute definitions.
*
*
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* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
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* src/include/access/sysattr.h
*
*-------------------------------------------------------------------------
*/
#ifndef SYSATTR_H
#define SYSATTR_H
/*
* Attribute numbers for the system-defined attributes
*/
#define SelfItemPointerAttributeNumber (-1)
#define ObjectIdAttributeNumber (-2)
#define MinTransactionIdAttributeNumber (-3)
#define MinCommandIdAttributeNumber (-4)
#define MaxTransactionIdAttributeNumber (-5)
#define MaxCommandIdAttributeNumber (-6)
#define TableOidAttributeNumber (-7)
#define FirstLowInvalidHeapAttributeNumber (-8)
#endif /* SYSATTR_H */