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/*------------------------------------------------------------------------- * * pg_class.h * definition of the system "relation" relation (pg_class) * along with the relation's initial contents. * * * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/catalog/pg_class.h * * NOTES * the genbki.pl script reads this file and generates .bki * information from the DATA() statements. * *------------------------------------------------------------------------- */ #ifndef PG_CLASS_H #define PG_CLASS_H #include "catalog/genbki.h" /* ---------------- * pg_class definition. cpp turns this into * typedef struct FormData_pg_class * ---------------- */ #define RelationRelationId 1259 #define RelationRelation_Rowtype_Id 83 CATALOG(pg_class,1259) BKI_BOOTSTRAP BKI_ROWTYPE_OID(83) BKI_SCHEMA_MACRO { NameData relname; /* class name */ Oid relnamespace; /* OID of namespace containing this class */ Oid reltype; /* OID of entry in pg_type for table's * implicit row type */ Oid reloftype; /* OID of entry in pg_type for underlying * composite type */ Oid relowner; /* class owner */ Oid relam; /* index access method; 0 if not an index */ Oid relfilenode; /* identifier of physical storage file */ /* relfilenode == 0 means it is a "mapped" relation, see relmapper.c */ Oid reltablespace; /* identifier of table space for relation */ int32 relpages; /* # of blocks (not always up-to-date) */ float4 reltuples; /* # of tuples (not always up-to-date) */ int32 relallvisible; /* # of all-visible blocks (not always * up-to-date) */ Oid reltoastrelid; /* OID of toast table; 0 if none */ bool relhasindex; /* T if has (or has had) any indexes */ bool relisshared; /* T if shared across databases */ char relpersistence; /* see RELPERSISTENCE_xxx constants below */ char relkind; /* see RELKIND_xxx constants below */ int16 relnatts; /* number of user attributes */ /* * Class pg_attribute must contain exactly "relnatts" user attributes * (with attnums ranging from 1 to relnatts) for this class. It may also * contain entries with negative attnums for system attributes. */ int16 relchecks; /* # of CHECK constraints for class */ bool relhasoids; /* T if we generate OIDs for rows of rel */ bool relhaspkey; /* has (or has had) PRIMARY KEY index */ bool relhasrules; /* has (or has had) any rules */ bool relhastriggers; /* has (or has had) any TRIGGERs */ bool relhassubclass; /* has (or has had) derived classes */ bool relrowsecurity; /* row security is enabled or not */ bool relforcerowsecurity; /* row security forced for owners or * not */ bool relispopulated; /* matview currently holds query results */ char relreplident; /* see REPLICA_IDENTITY_xxx constants */ TransactionId relfrozenxid; /* all Xids < this are frozen in this rel */ TransactionId relminmxid; /* all multixacts in this rel are >= this. * this is really a MultiXactId */ #ifdef CATALOG_VARLEN /* variable-length fields start here */ /* NOTE: These fields are not present in a relcache entry's rd_rel field. */ aclitem relacl[1]; /* access permissions */ text reloptions[1]; /* access-method-specific options */ #endif } FormData_pg_class; /* Size of fixed part of pg_class tuples, not counting var-length fields */ #define CLASS_TUPLE_SIZE \ (offsetof(FormData_pg_class,relminmxid) + sizeof(TransactionId)) /* ---------------- * 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 * ---------------- */ #define Natts_pg_class 31 #define Anum_pg_class_relname 1 #define Anum_pg_class_relnamespace 2 #define Anum_pg_class_reltype 3 #define Anum_pg_class_reloftype 4 #define Anum_pg_class_relowner 5 #define Anum_pg_class_relam 6 #define Anum_pg_class_relfilenode 7 #define Anum_pg_class_reltablespace 8 #define Anum_pg_class_relpages 9 #define Anum_pg_class_reltuples 10 #define Anum_pg_class_relallvisible 11 #define Anum_pg_class_reltoastrelid 12 #define Anum_pg_class_relhasindex 13 #define Anum_pg_class_relisshared 14 #define Anum_pg_class_relpersistence 15 #define Anum_pg_class_relkind 16 #define Anum_pg_class_relnatts 17 #define Anum_pg_class_relchecks 18 #define Anum_pg_class_relhasoids 19 #define Anum_pg_class_relhaspkey 20 #define Anum_pg_class_relhasrules 21 #define Anum_pg_class_relhastriggers 22 #define Anum_pg_class_relhassubclass 23 #define Anum_pg_class_relrowsecurity 24 #define Anum_pg_class_relforcerowsecurity 25 #define Anum_pg_class_relispopulated 26 #define Anum_pg_class_relreplident 27 #define Anum_pg_class_relfrozenxid 28 #define Anum_pg_class_relminmxid 29 #define Anum_pg_class_relacl 30 #define Anum_pg_class_reloptions 31 /* ---------------- * initial contents of pg_class * * NOTE: only "bootstrapped" relations need to be declared here. Be sure that * the OIDs listed here match those given in their CATALOG macros, and that * the relnatts values are correct. * ---------------- */ /* * Note: "3" in the relfrozenxid column stands for FirstNormalTransactionId; * similarly, "1" in relminmxid stands for FirstMultiXactId */ DATA(insert OID = 1247 ( pg_type PGNSP 71 0 PGUID 0 0 0 0 0 0 0 f f p r 30 0 t f f f f f f t n 3 1 _null_ _null_ )); DESCR(""); DATA(insert OID = 1249 ( pg_attribute PGNSP 75 0 PGUID 0 0 0 0 0 0 0 f f p r 21 0 f f f f f f f t n 3 1 _null_ _null_ )); DESCR(""); DATA(insert OID = 1255 ( pg_proc PGNSP 81 0 PGUID 0 0 0 0 0 0 0 f f p r 29 0 t f f f f f f t n 3 1 _null_ _null_ )); DESCR(""); DATA(insert OID = 1259 ( pg_class PGNSP 83 0 PGUID 0 0 0 0 0 0 0 f f p r 31 0 t f f f f f f t n 3 1 _null_ _null_ )); DESCR(""); #define RELKIND_RELATION 'r' /* ordinary table */ #define RELKIND_INDEX 'i' /* secondary index */ #define RELKIND_SEQUENCE 'S' /* sequence object */ #define RELKIND_TOASTVALUE 't' /* for out-of-line values */ #define RELKIND_VIEW 'v' /* view */ #define RELKIND_COMPOSITE_TYPE 'c' /* composite type */ #define RELKIND_FOREIGN_TABLE 'f' /* foreign table */ #define RELKIND_MATVIEW 'm' /* materialized view */ #define RELPERSISTENCE_PERMANENT 'p' /* regular table */ #define RELPERSISTENCE_UNLOGGED 'u' /* unlogged permanent table */ #define RELPERSISTENCE_TEMP 't' /* temporary table */ /* default selection for replica identity (primary key or nothing) */ #define REPLICA_IDENTITY_DEFAULT 'd' /* no replica identity is logged for this relation */ #define REPLICA_IDENTITY_NOTHING 'n' /* all columns are logged as replica identity */ #define REPLICA_IDENTITY_FULL 'f' /* * an explicitly chosen candidate key's columns are used as identity; * will still be set if the index has been dropped, in that case it * has the same meaning as 'd' */ #define REPLICA_IDENTITY_INDEX 'i' #endif /* PG_CLASS_H */