diff options
Diffstat (limited to 'src/include/access/transam.h')
| -rw-r--r-- | src/include/access/transam.h | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/src/include/access/transam.h b/src/include/access/transam.h index 5d328b3c714..9a872278ad7 100644 --- a/src/include/access/transam.h +++ b/src/include/access/transam.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: transam.h,v 1.36 2001/07/12 04:11:13 tgl Exp $ + * $Id: transam.h,v 1.37 2001/08/10 18:57:39 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -63,11 +63,27 @@ typedef unsigned char XidStatus; /* (2 bits) */ /* ---------- - * We reserve the first 16384 object ids for manual assignment. - * oid's less than this appear in the .bki files. the choice of - * 16384 is completely arbitrary. + * Object ID (OID) zero is InvalidOid. + * + * OIDs 1-9999 are reserved for manual assignment (see the files + * in src/include/catalog/). + * + * OIDS 10000-16383 are reserved for assignment by genbki.sh. + * + * OIDs beginning at 16384 are assigned at runtime from the OID + * generator. (The first few of these will be assigned during initdb, + * to objects created after the initial BKI script processing.) + * + * The choices of 10000 and 16384 are completely arbitrary, and can be moved + * if we run low on OIDs in either category. Changing the macros below + * should be sufficient to do this. + * + * NOTE: if the OID generator wraps around, we should skip over OIDs 0-16383 + * and resume with 16384. This minimizes the odds of OID conflict, by not + * reassigning OIDs that might have been assigned during initdb. * ---------- */ +#define FirstGenBKIObjectId 10000 #define BootstrapObjectIdData 16384 /* @@ -111,7 +127,7 @@ extern void TransBlockNumberSetXidStatus(Relation relation, /* in transam/varsup.c */ extern void GetNewTransactionId(TransactionId *xid); extern void ReadNewTransactionId(TransactionId *xid); -extern void GetNewObjectId(Oid *oid_return); +extern Oid GetNewObjectId(void); extern void CheckMaxObjectId(Oid assigned_oid); /* ---------------- |