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pg_inherits.h
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1 /*-------------------------------------------------------------------------
2  *
3  * pg_inherits.h
4  * definition of the "inherits" system catalog (pg_inherits)
5  *
6  *
7  * Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
8  * Portions Copyright (c) 1994, Regents of the University of California
9  *
10  * src/include/catalog/pg_inherits.h
11  *
12  * NOTES
13  * The Catalog.pm module reads this file and derives schema
14  * information.
15  *
16  *-------------------------------------------------------------------------
17  */
18 #ifndef PG_INHERITS_H
19 #define PG_INHERITS_H
20 
21 #include "catalog/genbki.h"
22 #include "catalog/pg_inherits_d.h"
23 
24 #include "nodes/pg_list.h"
25 #include "storage/lock.h"
26 
27 /* ----------------
28  * pg_inherits definition. cpp turns this into
29  * typedef struct FormData_pg_inherits
30  * ----------------
31  */
32 CATALOG(pg_inherits,2611,InheritsRelationId) BKI_WITHOUT_OIDS
33 {
34  Oid inhrelid;
35  Oid inhparent;
36  int32 inhseqno;
38 
39 /* ----------------
40  * Form_pg_inherits corresponds to a pointer to a tuple with
41  * the format of pg_inherits relation.
42  * ----------------
43  */
45 
46 
47 extern List *find_inheritance_children(Oid parentrelId, LOCKMODE lockmode);
48 extern List *find_all_inheritors(Oid parentrelId, LOCKMODE lockmode,
49  List **parents);
50 extern bool has_subclass(Oid relationId);
51 extern bool has_superclass(Oid relationId);
52 extern bool typeInheritsFrom(Oid subclassTypeId, Oid superclassTypeId);
53 extern void StoreSingleInheritance(Oid relationId, Oid parentOid,
54  int32 seqNumber);
55 extern bool DeleteInheritsTuple(Oid inhrelid, Oid inhparent);
56 
57 #endif /* PG_INHERITS_H */
CATALOG(pg_inherits, 2611, InheritsRelationId) BKI_WITHOUT_OIDS
Definition: pg_inherits.h:32
int LOCKMODE
Definition: lockdefs.h:26
bool has_superclass(Oid relationId)
Definition: pg_inherits.c:281
unsigned int Oid
Definition: postgres_ext.h:31
signed int int32
Definition: c.h:313
bool typeInheritsFrom(Oid subclassTypeId, Oid superclassTypeId)
Definition: pg_inherits.c:310
#define BKI_WITHOUT_OIDS
Definition: genbki.h:28
bool DeleteInheritsTuple(Oid inhrelid, Oid inhparent)
Definition: pg_inherits.c:449
List * find_all_inheritors(Oid parentrelId, LOCKMODE lockmode, List **parents)
Definition: pg_inherits.c:166
FormData_pg_inherits * Form_pg_inherits
Definition: pg_inherits.h:44
FormData_pg_inherits
Definition: pg_inherits.h:37
List * find_inheritance_children(Oid parentrelId, LOCKMODE lockmode)
Definition: pg_inherits.c:56
Definition: pg_list.h:45
void StoreSingleInheritance(Oid relationId, Oid parentOid, int32 seqNumber)
Definition: pg_inherits.c:412
bool has_subclass(Oid relationId)
Definition: pg_inherits.c:261