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Diffstat (limited to 'src/include/catalog/pg_class.h')
| -rw-r--r-- | src/include/catalog/pg_class.h | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/src/include/catalog/pg_class.h b/src/include/catalog/pg_class.h new file mode 100644 index 00000000000..eb4ba992d6b --- /dev/null +++ b/src/include/catalog/pg_class.h @@ -0,0 +1,166 @@ +/*------------------------------------------------------------------------- + * + * pg_class.h-- + * definition of the system "relation" relation (pg_class) + * along with the relation's initial contents. + * + * + * Copyright (c) 1994, Regents of the University of California + * + * $Id: pg_class.h,v 1.1 1996/08/28 01:56:39 scrappy Exp $ + * + * NOTES + * ``pg_relation'' is being replaced by ``pg_class''. currently + * we are only changing the name in the catalogs but someday the + * code will be changed too. -cim 2/26/90 + * [it finally happens. -ay 11/5/94] + * + * the genbki.sh script reads this file and generates .bki + * information from the DATA() statements. + * + *------------------------------------------------------------------------- + */ +#ifndef PG_RELATION_H +#define PG_RELATION_H + +/* ---------------- + * postgres.h contains the system type definintions and the + * CATALOG(), BOOTSTRAP and DATA() sugar words so this file + * can be read by both genbki.sh and the C compiler. + * ---------------- + */ +#include "postgres.h" +#include "utils/nabstime.h" + +/* ---------------- + * pg_class definition. cpp turns this into + * typedef struct FormData_pg_class + * + * Note: the #if 0, #endif around the BKI_BEGIN.. END block + * below keeps cpp from seeing what is meant for the + * genbki script: pg_relation is now called pg_class, but + * only in the catalogs -cim 2/26/90 + * ---------------- + */ + +/* ---------------- + * This structure is actually variable-length (the last attribute is + * a POSTGRES array). Hence, sizeof(FormData_pg_class) does not + * describe the fixed-length or actual size of the structure. + * FormData_pg_class.relacl may not be correctly aligned, either, + * if aclitem and struct varlena don't align together. Hence, + * you MUST use heap_getattr() to get the relacl field. + * ---------------- + */ +CATALOG(pg_class) BOOTSTRAP { + NameData relname; + Oid reltype; + Oid relowner; + Oid relam; + int4 relpages; + int4 reltuples; + int4 relexpires; /* really used as a abstime, but fudge it for now*/ + int4 relpreserved;/*really used as a reltime, but fudge it for now*/ + bool relhasindex; + bool relisshared; + char relkind; + char relarch; /* 'h' = heavy, 'l' = light, 'n' = no archival*/ + int2 relnatts; + /* relnatts is the number of user attributes this class has. There + must be exactly this many instances in Class pg_attribute for this + class which have attnum > 0 (= user attribute). + */ + int2 relsmgr; + int28 relkey; /* not used */ + oid8 relkeyop; /* not used */ + bool relhasrules; + aclitem relacl[1]; /* this is here for the catalog */ +} FormData_pg_class; + +#define CLASS_TUPLE_SIZE \ + (offsetof(FormData_pg_class,relhasrules) + sizeof(bool)) + +/* ---------------- + * Form_pg_class corresponds to a pointer to a tuple with + * the format of pg_class relation. + * ---------------- + */ +typedef FormData_pg_class *Form_pg_class; + +/* ---------------- + * compiler constants for pg_class + * ---------------- + */ + +/* ---------------- + * Natts_pg_class_fixed is used to tell routines that insert new + * pg_class tuples (as opposed to replacing old ones) that there's no + * relacl field. + * ---------------- + */ +#define Natts_pg_class_fixed 17 +#define Natts_pg_class 18 +#define Anum_pg_class_relname 1 +#define Anum_pg_class_reltype 2 +#define Anum_pg_class_relowner 3 +#define Anum_pg_class_relam 4 +#define Anum_pg_class_relpages 5 +#define Anum_pg_class_reltuples 6 +#define Anum_pg_class_relexpires 7 +#define Anum_pg_class_relpreserved 8 +#define Anum_pg_class_relhasindex 9 +#define Anum_pg_class_relisshared 10 +#define Anum_pg_class_relkind 11 +#define Anum_pg_class_relarch 12 +#define Anum_pg_class_relnatts 13 +#define Anum_pg_class_relsmgr 14 +#define Anum_pg_class_relkey 15 +#define Anum_pg_class_relkeyop 16 +#define Anum_pg_class_relhasrules 17 +#define Anum_pg_class_relacl 18 + +/* ---------------- + * initial contents of pg_class + * ---------------- + */ + +DATA(insert OID = 71 ( pg_type 71 PGUID 0 0 0 0 0 f f r n 16 0 - - f _null_ )); +DATA(insert OID = 75 ( pg_attribute 75 PGUID 0 0 0 0 0 f f r n 16 0 - - f _null_ )); +DATA(insert OID = 76 ( pg_demon 76 PGUID 0 0 0 0 0 f t r n 4 0 - - f _null_ )); +DATA(insert OID = 80 ( pg_magic 80 PGUID 0 0 0 0 0 f t r n 2 0 - - f _null_ )); +DATA(insert OID = 81 ( pg_proc 81 PGUID 0 0 0 0 0 f f r n 16 0 - - f _null_ )); +DATA(insert OID = 82 ( pg_server 82 PGUID 0 0 0 0 0 f t r n 3 0 - - f _null_ )); +DATA(insert OID = 83 ( pg_class 83 PGUID 0 0 0 0 0 f f r n 18 0 - - f _null_ )); +DATA(insert OID = 86 ( pg_user 86 PGUID 0 0 0 0 0 f t r n 6 0 - - f _null_ )); +DATA(insert OID = 87 ( pg_group 87 PGUID 0 0 0 0 0 f t s n 3 0 - - f _null_ )); +DATA(insert OID = 88 ( pg_database 88 PGUID 0 0 0 0 0 f t r n 3 0 - - f _null_ )); +DATA(insert OID = 89 ( pg_defaults 89 PGUID 0 0 0 0 0 f t r n 2 0 - - f _null_ )); +DATA(insert OID = 90 ( pg_variable 90 PGUID 0 0 0 0 0 f t s n 2 0 - - f _null_ )); +DATA(insert OID = 99 ( pg_log 99 PGUID 0 0 0 0 0 f t s n 1 0 - - f _null_ )); +DATA(insert OID = 100 ( pg_time 100 PGUID 0 0 0 0 0 f t s n 1 0 - - f _null_ )); +DATA(insert OID = 101 ( pg_hosts 101 PGUID 0 0 0 0 0 f t s n 3 0 - - f _null_ )); + +#define RelOid_pg_type 71 +#define RelOid_pg_demon 76 +#define RelOid_pg_attribute 75 +#define RelOid_pg_magic 80 +#define RelOid_pg_proc 81 +#define RelOid_pg_server 82 +#define RelOid_pg_class 83 +#define RelOid_pg_user 86 +#define RelOid_pg_group 87 +#define RelOid_pg_database 88 +#define RelOid_pg_defaults 89 +#define RelOid_pg_variable 90 +#define RelOid_pg_log 99 +#define RelOid_pg_time 100 +#define RelOid_pg_hosts 101 + +#define MAX_SYSTEM_RELOID 101 + +#define RELKIND_INDEX 'i' /* secondary index */ +#define RELKIND_RELATION 'r' /* cataloged heap */ +#define RELKIND_SPECIAL 's' /* special (non-heap) */ +#define RELKIND_UNCATALOGED 'u' /* temporary heap */ + +#endif /* PG_RELATION_H */ |