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Diffstat (limited to 'src/include/catalog/pg_enum.h')
-rw-r--r-- | src/include/catalog/pg_enum.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/include/catalog/pg_enum.h b/src/include/catalog/pg_enum.h new file mode 100644 index 0000000..83a0668 --- /dev/null +++ b/src/include/catalog/pg_enum.h @@ -0,0 +1,66 @@ +/*------------------------------------------------------------------------- + * + * pg_enum.h + * definition of the "enum" system catalog (pg_enum) + * + * + * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/catalog/pg_enum.h + * + * NOTES + * The Catalog.pm module reads this file and derives schema + * information. + * + *------------------------------------------------------------------------- + */ +#ifndef PG_ENUM_H +#define PG_ENUM_H + +#include "catalog/genbki.h" +#include "catalog/pg_enum_d.h" + +#include "nodes/pg_list.h" + +/* ---------------- + * pg_enum definition. cpp turns this into + * typedef struct FormData_pg_enum + * ---------------- + */ +CATALOG(pg_enum,3501,EnumRelationId) +{ + Oid oid; /* oid */ + Oid enumtypid BKI_LOOKUP(pg_type); /* OID of owning enum type */ + float4 enumsortorder; /* sort position of this enum value */ + NameData enumlabel; /* text representation of enum value */ +} FormData_pg_enum; + +/* ---------------- + * Form_pg_enum corresponds to a pointer to a tuple with + * the format of pg_enum relation. + * ---------------- + */ +typedef FormData_pg_enum *Form_pg_enum; + +DECLARE_UNIQUE_INDEX_PKEY(pg_enum_oid_index, 3502, EnumOidIndexId, on pg_enum using btree(oid oid_ops)); +DECLARE_UNIQUE_INDEX(pg_enum_typid_label_index, 3503, EnumTypIdLabelIndexId, on pg_enum using btree(enumtypid oid_ops, enumlabel name_ops)); +DECLARE_UNIQUE_INDEX(pg_enum_typid_sortorder_index, 3534, EnumTypIdSortOrderIndexId, on pg_enum using btree(enumtypid oid_ops, enumsortorder float4_ops)); + +/* + * prototypes for functions in pg_enum.c + */ +extern void EnumValuesCreate(Oid enumTypeOid, List *vals); +extern void EnumValuesDelete(Oid enumTypeOid); +extern void AddEnumLabel(Oid enumTypeOid, const char *newVal, + const char *neighbor, bool newValIsAfter, + bool skipIfExists); +extern void RenameEnumLabel(Oid enumTypeOid, + const char *oldVal, const char *newVal); +extern bool EnumUncommitted(Oid enum_id); +extern Size EstimateUncommittedEnumsSpace(void); +extern void SerializeUncommittedEnums(void *space, Size size); +extern void RestoreUncommittedEnums(void *space); +extern void AtEOXact_Enum(void); + +#endif /* PG_ENUM_H */ |