text: /*-------------------------------------------------------------------------
   *
   * pg_class.h
   *	  definition of the system "relation" relation (pg_class)
   *	  along with the relation's initial contents.
   *
   *
   * Portions Copyright (c) 1996-2017, 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  */
  	bool		relispartition;	/* is relation a partition? */
  	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 */
  	pg_node_tree relpartbound;	/* partition bound node tree */
  #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						33
  #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_relispartition		28
  #define Anum_pg_class_relfrozenxid			29
  #define Anum_pg_class_relminmxid			30
  #define Anum_pg_class_relacl				31
  #define Anum_pg_class_reloptions			32
  #define Anum_pg_class_relpartbound			33
  
  /* ----------------
   *		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 f 3 1 _null_ _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 f 3 1 _null_ _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 f 3 1 _null_ _null_ _null_));
  DESCR("");
  DATA(insert OID = 1259 (  pg_class		PGNSP 83 0 PGUID 0 0 0 0 0 0 0 f f p r 33 0 t f f f f f f t n f 3 1 _null_ _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		  RELKIND_PARTITIONED_TABLE 'P'		/* partitioned table */
  
  #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 */
  