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pgsql/include/server/catalog/pg_am.h
66 строк
2 KB
AoAnima
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13 июл 2026, 17:47
13 июл 2026, 17:47
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/*------------------------------------------------------------------------- * * pg_am.h * definition of the "access method" system catalog (pg_am) * * * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/catalog/pg_am.h * * NOTES * The Catalog.pm module reads this file and derives schema * information. * *------------------------------------------------------------------------- */ #ifndef PG_AM_H #define PG_AM_H #include "catalog/genbki.h" #include "catalog/pg_am_d.h" /* IWYU pragma: export */ /* ---------------- * pg_am definition. cpp turns this into * typedef struct FormData_pg_am * ---------------- */ CATALOG(pg_am,2601,AccessMethodRelationId) { Oid oid; /* oid */ /* access method name */ NameData amname; /* handler function */ regproc amhandler BKI_LOOKUP(pg_proc); /* see AMTYPE_xxx constants below */ char amtype; } FormData_pg_am; /* ---------------- * Form_pg_am corresponds to a pointer to a tuple with * the format of pg_am relation. * ---------------- */ typedef FormData_pg_am *Form_pg_am; DECLARE_UNIQUE_INDEX(pg_am_name_index, 2651, AmNameIndexId, pg_am, btree(amname name_ops)); DECLARE_UNIQUE_INDEX_PKEY(pg_am_oid_index, 2652, AmOidIndexId, pg_am, btree(oid oid_ops)); MAKE_SYSCACHE(AMNAME, pg_am_name_index, 4); MAKE_SYSCACHE(AMOID, pg_am_oid_index, 4); #ifdef EXPOSE_TO_CLIENT_CODE /* * Allowed values for amtype */ #define AMTYPE_INDEX 'i' /* index access method */ #define AMTYPE_TABLE 't' /* table access method */ #endif /* EXPOSE_TO_CLIENT_CODE */ #endif /* PG_AM_H */