heap.h

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/*-------------------------------------------------------------------------
 *
 * heap.h
 *    prototypes for functions in backend/catalog/heap.c
 *
 *
 * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/catalog/heap.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef HEAP_H
#define HEAP_H

#include "catalog/indexing.h"
#include "catalog/objectaddress.h"
#include "parser/parse_node.h"


typedef struct RawColumnDefault
{
    AttrNumber  attnum;         /* attribute to attach default to */
    Node       *raw_default;    /* default value (untransformed parse tree) */
} RawColumnDefault;

typedef struct CookedConstraint
{
    ConstrType  contype;        /* CONSTR_DEFAULT or CONSTR_CHECK */
    Oid         conoid;         /* constr OID if created, otherwise Invalid */
    char       *name;           /* name, or NULL if none */
    AttrNumber  attnum;         /* which attr (only for DEFAULT) */
    Node       *expr;           /* transformed default or check expr */
    bool        skip_validation;    /* skip validation? (only for CHECK) */
    bool        is_local;       /* constraint has local (non-inherited) def */
    int         inhcount;       /* number of times constraint is inherited */
    bool        is_no_inherit;  /* constraint has local def and cannot be
                                 * inherited */
} CookedConstraint;

extern Relation heap_create(const char *relname,
            Oid relnamespace,
            Oid reltablespace,
            Oid relid,
            Oid relfilenode,
            TupleDesc tupDesc,
            char relkind,
            char relpersistence,
            bool shared_relation,
            bool mapped_relation,
            bool allow_system_table_mods);

extern Oid heap_create_with_catalog(const char *relname,
                         Oid relnamespace,
                         Oid reltablespace,
                         Oid relid,
                         Oid reltypeid,
                         Oid reloftypeid,
                         Oid ownerid,
                         TupleDesc tupdesc,
                         List *cooked_constraints,
                         char relkind,
                         char relpersistence,
                         bool shared_relation,
                         bool mapped_relation,
                         bool oidislocal,
                         int oidinhcount,
                         OnCommitAction oncommit,
                         Datum reloptions,
                         bool use_user_acl,
                         bool allow_system_table_mods,
                         bool is_internal,
                         ObjectAddress *typaddress);

extern void heap_create_init_fork(Relation rel);

extern void heap_drop_with_catalog(Oid relid);

extern void heap_truncate(List *relids);

extern void heap_truncate_one_rel(Relation rel);

extern void heap_truncate_check_FKs(List *relations, bool tempTables);

extern List *heap_truncate_find_FKs(List *relationIds);

extern void InsertPgAttributeTuple(Relation pg_attribute_rel,
                       Form_pg_attribute new_attribute,
                       CatalogIndexState indstate);

extern void InsertPgClassTuple(Relation pg_class_desc,
                   Relation new_rel_desc,
                   Oid new_rel_oid,
                   Datum relacl,
                   Datum reloptions);

extern List *AddRelationNewConstraints(Relation rel,
                          List *newColDefaults,
                          List *newConstraints,
                          bool allow_merge,
                          bool is_local,
                          bool is_internal);

extern Oid StoreAttrDefault(Relation rel, AttrNumber attnum,
                 Node *expr, bool is_internal);

extern Node *cookDefault(ParseState *pstate,
            Node *raw_default,
            Oid atttypid,
            int32 atttypmod,
            char *attname);

extern void DeleteRelationTuple(Oid relid);
extern void DeleteAttributeTuples(Oid relid);
extern void DeleteSystemAttributeTuples(Oid relid);
extern void RemoveAttributeById(Oid relid, AttrNumber attnum);
extern void RemoveAttrDefault(Oid relid, AttrNumber attnum,
                  DropBehavior behavior, bool complain, bool internal);
extern void RemoveAttrDefaultById(Oid attrdefId);
extern void RemoveStatistics(Oid relid, AttrNumber attnum);

extern Form_pg_attribute SystemAttributeDefinition(AttrNumber attno,
                          bool relhasoids);

extern Form_pg_attribute SystemAttributeByName(const char *attname,
                      bool relhasoids);

extern void CheckAttributeNamesTypes(TupleDesc tupdesc, char relkind,
                         bool allow_system_table_mods);

extern void CheckAttributeType(const char *attname,
                   Oid atttypid, Oid attcollation,
                   List *containing_rowtypes,
                   bool allow_system_table_mods);

#endif   /* HEAP_H */