107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* pg_collation.h
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* definition of the "collation" system catalog (pg_collation)
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*
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*
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* Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/catalog/pg_collation.h
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*
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* NOTES
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* The Catalog.pm module reads this file and derives schema
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* information.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PG_COLLATION_H
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#define PG_COLLATION_H
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#include "catalog/genbki.h"
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#include "catalog/pg_collation_d.h"
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/* ----------------
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* pg_collation definition. cpp turns this into
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* typedef struct FormData_pg_collation
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* ----------------
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*/
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CATALOG(pg_collation,3456,CollationRelationId)
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{
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Oid oid; /* oid */
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NameData collname; /* collation name */
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/* OID of namespace containing this collation */
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Oid collnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
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/* owner of collation */
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Oid collowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
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char collprovider; /* see constants below */
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bool collisdeterministic BKI_DEFAULT(t);
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int32 collencoding; /* encoding for this collation; -1 = "all" */
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#ifdef CATALOG_VARLEN /* variable-length fields start here */
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text collcollate BKI_DEFAULT(_null_); /* LC_COLLATE setting */
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text collctype BKI_DEFAULT(_null_); /* LC_CTYPE setting */
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text colllocale BKI_DEFAULT(_null_); /* locale ID */
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text collicurules BKI_DEFAULT(_null_); /* ICU collation rules */
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text collversion BKI_DEFAULT(_null_); /* provider-dependent
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* version of collation
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* data */
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#endif
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} FormData_pg_collation;
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/* ----------------
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* Form_pg_collation corresponds to a pointer to a row with
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* the format of pg_collation relation.
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* ----------------
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*/
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typedef FormData_pg_collation *Form_pg_collation;
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DECLARE_TOAST(pg_collation, 6175, 6176);
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DECLARE_UNIQUE_INDEX(pg_collation_name_enc_nsp_index, 3164, CollationNameEncNspIndexId, pg_collation, btree(collname name_ops, collencoding int4_ops, collnamespace oid_ops));
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DECLARE_UNIQUE_INDEX_PKEY(pg_collation_oid_index, 3085, CollationOidIndexId, pg_collation, btree(oid oid_ops));
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MAKE_SYSCACHE(COLLNAMEENCNSP, pg_collation_name_enc_nsp_index, 8);
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MAKE_SYSCACHE(COLLOID, pg_collation_oid_index, 8);
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#ifdef EXPOSE_TO_CLIENT_CODE
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#define COLLPROVIDER_DEFAULT 'd'
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#define COLLPROVIDER_BUILTIN 'b'
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#define COLLPROVIDER_ICU 'i'
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#define COLLPROVIDER_LIBC 'c'
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static inline const char *
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collprovider_name(char c)
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{
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switch (c)
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{
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case COLLPROVIDER_BUILTIN:
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return "builtin";
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case COLLPROVIDER_ICU:
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return "icu";
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case COLLPROVIDER_LIBC:
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return "libc";
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default:
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return "???";
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}
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}
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#endif /* EXPOSE_TO_CLIENT_CODE */
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extern Oid CollationCreate(const char *collname, Oid collnamespace,
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Oid collowner,
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char collprovider,
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bool collisdeterministic,
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int32 collencoding,
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const char *collcollate, const char *collctype,
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const char *colllocale,
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const char *collicurules,
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const char *collversion,
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bool if_not_exists,
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bool quiet);
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#endif /* PG_COLLATION_H */
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