70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*-------------------------------------------------------------------------
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*
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* pg_enum.h
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* definition of the "enum" system catalog (pg_enum)
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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_enum.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_ENUM_H
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#define PG_ENUM_H
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#include "catalog/genbki.h"
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#include "catalog/pg_enum_d.h"
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#include "nodes/pg_list.h"
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/* ----------------
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* pg_enum definition. cpp turns this into
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* typedef struct FormData_pg_enum
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* ----------------
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*/
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CATALOG(pg_enum,3501,EnumRelationId)
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{
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Oid oid; /* oid */
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Oid enumtypid BKI_LOOKUP(pg_type); /* OID of owning enum type */
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float4 enumsortorder; /* sort position of this enum value */
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NameData enumlabel; /* text representation of enum value */
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} FormData_pg_enum;
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/* ----------------
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* Form_pg_enum corresponds to a pointer to a tuple with
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* the format of pg_enum relation.
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* ----------------
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*/
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typedef FormData_pg_enum *Form_pg_enum;
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DECLARE_UNIQUE_INDEX_PKEY(pg_enum_oid_index, 3502, EnumOidIndexId, pg_enum, btree(oid oid_ops));
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DECLARE_UNIQUE_INDEX(pg_enum_typid_label_index, 3503, EnumTypIdLabelIndexId, pg_enum, btree(enumtypid oid_ops, enumlabel name_ops));
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DECLARE_UNIQUE_INDEX(pg_enum_typid_sortorder_index, 3534, EnumTypIdSortOrderIndexId, pg_enum, btree(enumtypid oid_ops, enumsortorder float4_ops));
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MAKE_SYSCACHE(ENUMOID, pg_enum_oid_index, 8);
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MAKE_SYSCACHE(ENUMTYPOIDNAME, pg_enum_typid_label_index, 8);
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/*
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* prototypes for functions in pg_enum.c
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*/
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extern void EnumValuesCreate(Oid enumTypeOid, List *vals);
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extern void EnumValuesDelete(Oid enumTypeOid);
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extern void AddEnumLabel(Oid enumTypeOid, const char *newVal,
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const char *neighbor, bool newValIsAfter,
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bool skipIfExists);
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extern void RenameEnumLabel(Oid enumTypeOid,
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const char *oldVal, const char *newVal);
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extern bool EnumUncommitted(Oid enum_id);
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extern Size EstimateUncommittedEnumsSpace(void);
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extern void SerializeUncommittedEnums(void *space, Size size);
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extern void RestoreUncommittedEnums(void *space);
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extern void AtEOXact_Enum(void);
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#endif /* PG_ENUM_H */
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