1996-08-28 03:59:28 +02:00
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/*-------------------------------------------------------------------------
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*
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* pg_class.h--
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* definition of the system "relation" relation (pg_class)
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* along with the relation's initial contents.
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*
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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1996-11-01 10:31:17 +01:00
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* $Id: pg_class.h,v 1.3 1996/11/01 09:30:46 scrappy Exp $
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1996-08-28 03:59:28 +02:00
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*
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* NOTES
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* ``pg_relation'' is being replaced by ``pg_class''. currently
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* we are only changing the name in the catalogs but someday the
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* code will be changed too. -cim 2/26/90
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* [it finally happens. -ay 11/5/94]
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*
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* the genbki.sh script reads this file and generates .bki
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* information from the DATA() statements.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PG_RELATION_H
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#define PG_RELATION_H
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/* ----------------
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* postgres.h contains the system type definintions and the
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* CATALOG(), BOOTSTRAP and DATA() sugar words so this file
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* can be read by both genbki.sh and the C compiler.
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* ----------------
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*/
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/* ----------------
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* pg_class definition. cpp turns this into
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* typedef struct FormData_pg_class
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*
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* Note: the #if 0, #endif around the BKI_BEGIN.. END block
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* below keeps cpp from seeing what is meant for the
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* genbki script: pg_relation is now called pg_class, but
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* only in the catalogs -cim 2/26/90
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* ----------------
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*/
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/* ----------------
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* This structure is actually variable-length (the last attribute is
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* a POSTGRES array). Hence, sizeof(FormData_pg_class) does not
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* describe the fixed-length or actual size of the structure.
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* FormData_pg_class.relacl may not be correctly aligned, either,
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* if aclitem and struct varlena don't align together. Hence,
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* you MUST use heap_getattr() to get the relacl field.
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* ----------------
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*/
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CATALOG(pg_class) BOOTSTRAP {
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NameData relname;
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Oid reltype;
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Oid relowner;
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Oid relam;
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int4 relpages;
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int4 reltuples;
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int4 relexpires; /* really used as a abstime, but fudge it for now*/
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int4 relpreserved;/*really used as a reltime, but fudge it for now*/
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bool relhasindex;
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bool relisshared;
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char relkind;
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char relarch; /* 'h' = heavy, 'l' = light, 'n' = no archival*/
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int2 relnatts;
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/* relnatts is the number of user attributes this class has. There
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must be exactly this many instances in Class pg_attribute for this
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class which have attnum > 0 (= user attribute).
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*/
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int2 relsmgr;
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int28 relkey; /* not used */
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oid8 relkeyop; /* not used */
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bool relhasrules;
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aclitem relacl[1]; /* this is here for the catalog */
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} FormData_pg_class;
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#define CLASS_TUPLE_SIZE \
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(offsetof(FormData_pg_class,relhasrules) + sizeof(bool))
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/* ----------------
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* Form_pg_class corresponds to a pointer to a tuple with
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* the format of pg_class relation.
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* ----------------
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*/
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typedef FormData_pg_class *Form_pg_class;
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/* ----------------
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* compiler constants for pg_class
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* ----------------
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*/
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/* ----------------
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* Natts_pg_class_fixed is used to tell routines that insert new
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* pg_class tuples (as opposed to replacing old ones) that there's no
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* relacl field.
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* ----------------
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*/
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#define Natts_pg_class_fixed 17
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#define Natts_pg_class 18
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#define Anum_pg_class_relname 1
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#define Anum_pg_class_reltype 2
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#define Anum_pg_class_relowner 3
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#define Anum_pg_class_relam 4
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#define Anum_pg_class_relpages 5
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#define Anum_pg_class_reltuples 6
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#define Anum_pg_class_relexpires 7
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#define Anum_pg_class_relpreserved 8
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#define Anum_pg_class_relhasindex 9
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#define Anum_pg_class_relisshared 10
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#define Anum_pg_class_relkind 11
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#define Anum_pg_class_relarch 12
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#define Anum_pg_class_relnatts 13
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#define Anum_pg_class_relsmgr 14
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#define Anum_pg_class_relkey 15
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#define Anum_pg_class_relkeyop 16
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#define Anum_pg_class_relhasrules 17
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#define Anum_pg_class_relacl 18
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/* ----------------
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* initial contents of pg_class
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* ----------------
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*/
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DATA(insert OID = 71 ( pg_type 71 PGUID 0 0 0 0 0 f f r n 16 0 - - f _null_ ));
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DATA(insert OID = 75 ( pg_attribute 75 PGUID 0 0 0 0 0 f f r n 16 0 - - f _null_ ));
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DATA(insert OID = 76 ( pg_demon 76 PGUID 0 0 0 0 0 f t r n 4 0 - - f _null_ ));
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DATA(insert OID = 80 ( pg_magic 80 PGUID 0 0 0 0 0 f t r n 2 0 - - f _null_ ));
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DATA(insert OID = 81 ( pg_proc 81 PGUID 0 0 0 0 0 f f r n 16 0 - - f _null_ ));
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DATA(insert OID = 82 ( pg_server 82 PGUID 0 0 0 0 0 f t r n 3 0 - - f _null_ ));
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DATA(insert OID = 83 ( pg_class 83 PGUID 0 0 0 0 0 f f r n 18 0 - - f _null_ ));
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DATA(insert OID = 86 ( pg_user 86 PGUID 0 0 0 0 0 f t r n 6 0 - - f _null_ ));
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DATA(insert OID = 87 ( pg_group 87 PGUID 0 0 0 0 0 f t s n 3 0 - - f _null_ ));
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DATA(insert OID = 88 ( pg_database 88 PGUID 0 0 0 0 0 f t r n 3 0 - - f _null_ ));
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DATA(insert OID = 89 ( pg_defaults 89 PGUID 0 0 0 0 0 f t r n 2 0 - - f _null_ ));
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DATA(insert OID = 90 ( pg_variable 90 PGUID 0 0 0 0 0 f t s n 2 0 - - f _null_ ));
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DATA(insert OID = 99 ( pg_log 99 PGUID 0 0 0 0 0 f t s n 1 0 - - f _null_ ));
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DATA(insert OID = 100 ( pg_time 100 PGUID 0 0 0 0 0 f t s n 1 0 - - f _null_ ));
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DATA(insert OID = 101 ( pg_hosts 101 PGUID 0 0 0 0 0 f t s n 3 0 - - f _null_ ));
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#define RelOid_pg_type 71
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#define RelOid_pg_demon 76
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#define RelOid_pg_attribute 75
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#define RelOid_pg_magic 80
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#define RelOid_pg_proc 81
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#define RelOid_pg_server 82
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#define RelOid_pg_class 83
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#define RelOid_pg_user 86
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#define RelOid_pg_group 87
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#define RelOid_pg_database 88
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#define RelOid_pg_defaults 89
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#define RelOid_pg_variable 90
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#define RelOid_pg_log 99
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#define RelOid_pg_time 100
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#define RelOid_pg_hosts 101
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#define MAX_SYSTEM_RELOID 101
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#define RELKIND_INDEX 'i' /* secondary index */
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#define RELKIND_RELATION 'r' /* cataloged heap */
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#define RELKIND_SPECIAL 's' /* special (non-heap) */
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#define RELKIND_UNCATALOGED 'u' /* temporary heap */
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#endif /* PG_RELATION_H */
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