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pg_collation.h
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1 /*-------------------------------------------------------------------------
2  *
3  * pg_collation.h
4  * definition of the "collation" system catalog (pg_collation)
5  *
6  *
7  * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
8  * Portions Copyright (c) 1994, Regents of the University of California
9  *
10  * src/include/catalog/pg_collation.h
11  *
12  * NOTES
13  * The Catalog.pm module reads this file and derives schema
14  * information.
15  *
16  *-------------------------------------------------------------------------
17  */
18 #ifndef PG_COLLATION_H
19 #define PG_COLLATION_H
20 
21 #include "catalog/genbki.h"
22 #include "catalog/pg_collation_d.h"
23 
24 /* ----------------
25  * pg_collation definition. cpp turns this into
26  * typedef struct FormData_pg_collation
27  * ----------------
28  */
29 CATALOG(pg_collation,3456,CollationRelationId)
30 {
31  Oid oid; /* oid */
32  NameData collname; /* collation name */
33  Oid collnamespace; /* OID of namespace containing collation */
34  Oid collowner; /* owner of collation */
35  char collprovider; /* see constants below */
36  bool collisdeterministic BKI_DEFAULT(t);
37  int32 collencoding; /* encoding for this collation; -1 = "all" */
38  NameData collcollate; /* LC_COLLATE setting */
39  NameData collctype; /* LC_CTYPE setting */
40 #ifdef CATALOG_VARLEN /* variable-length fields start here */
41  text collversion; /* provider-dependent version of collation
42  * data */
43 #endif
45 
46 /* ----------------
47  * Form_pg_collation corresponds to a pointer to a row with
48  * the format of pg_collation relation.
49  * ----------------
50  */
52 
53 #ifdef EXPOSE_TO_CLIENT_CODE
54 
55 #define COLLPROVIDER_DEFAULT 'd'
56 #define COLLPROVIDER_ICU 'i'
57 #define COLLPROVIDER_LIBC 'c'
58 
59 #endif /* EXPOSE_TO_CLIENT_CODE */
60 
61 
62 extern Oid CollationCreate(const char *collname, Oid collnamespace,
63  Oid collowner,
64  char collprovider,
65  bool collisdeterministic,
66  int32 collencoding,
67  const char *collcollate, const char *collctype,
68  const char *collversion,
69  bool if_not_exists,
70  bool quiet);
71 extern void RemoveCollationById(Oid collationOid);
72 
73 #endif /* PG_COLLATION_H */
unsigned int Oid
Definition: postgres_ext.h:31
#define BKI_DEFAULT(value)
Definition: genbki.h:35
signed int int32
Definition: c.h:346
Definition: c.h:603
FormData_pg_collation
Definition: pg_collation.h:44
Oid CollationCreate(const char *collname, Oid collnamespace, Oid collowner, char collprovider, bool collisdeterministic, int32 collencoding, const char *collcollate, const char *collctype, const char *collversion, bool if_not_exists, bool quiet)
Definition: pg_collation.c:46
void RemoveCollationById(Oid collationOid)
Definition: pg_collation.c:214
FormData_pg_collation * Form_pg_collation
Definition: pg_collation.h:51
CATALOG(pg_collation, 3456, CollationRelationId)
Definition: pg_collation.h:29
Definition: c.h:549