diff options
Diffstat (limited to 'src/include/catalog/pg_init_privs.h')
-rw-r--r-- | src/include/catalog/pg_init_privs.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/include/catalog/pg_init_privs.h b/src/include/catalog/pg_init_privs.h new file mode 100644 index 0000000..7734b72 --- /dev/null +++ b/src/include/catalog/pg_init_privs.h @@ -0,0 +1,78 @@ +/*------------------------------------------------------------------------- + * + * pg_init_privs.h + * definition of the "initial privileges" system catalog (pg_init_privs) + * + * NOTE: an object is identified by the OID of the row that primarily + * defines the object, plus the OID of the table that that row appears in. + * For example, a function is identified by the OID of its pg_proc row + * plus the pg_class OID of table pg_proc. This allows unique identification + * of objects without assuming that OIDs are unique across tables. + * + * Since attributes don't have OIDs of their own, we identify an attribute + * privilege by the objoid+classoid of its parent table, plus an "objsubid" + * giving the attribute column number. "objsubid" must be zero in a privilege + * for a table itself, so that it is distinct from any column privilege. + * Currently, objsubid is unused and zero for all other kinds of objects. + * + * Because the contents of this table depend on what is done with the other + * objects in the system (and, in particular, may change due to changes in + * system_views.sql), there is no pg_init_privs.dat file. The initial contents + * are loaded near the end of initdb. + * + * + * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/catalog/pg_init_privs.h + * + * NOTES + * The Catalog.pm module reads this file and derives schema + * information. + * + *------------------------------------------------------------------------- + */ +#ifndef PG_INIT_PRIVS_H +#define PG_INIT_PRIVS_H + +#include "catalog/genbki.h" +#include "catalog/pg_init_privs_d.h" + +/* ---------------- + * pg_init_privs definition. cpp turns this into + * typedef struct FormData_pg_init_privs + * ---------------- + */ +CATALOG(pg_init_privs,3394,InitPrivsRelationId) +{ + Oid objoid; /* OID of object itself */ + Oid classoid; /* OID of table containing object */ + int32 objsubid; /* column number, or 0 if not used */ + char privtype; /* from initdb or extension? */ + +#ifdef CATALOG_VARLEN /* variable-length fields start here */ + aclitem initprivs[1] BKI_FORCE_NOT_NULL; /* initial privs on object */ +#endif +} FormData_pg_init_privs; + +/* ---------------- + * Form_pg_init_privs corresponds to a pointer to a tuple with + * the format of pg_init_privs relation. + * ---------------- + */ +typedef FormData_pg_init_privs * Form_pg_init_privs; + +/* + * It is important to know if the initial privileges are from initdb or from an + * extension. This enum is used to provide that differentiation and the two + * places which populate this table (initdb and during CREATE EXTENSION, see + * recordExtensionInitPriv()) know to use the correct values. + */ + +typedef enum InitPrivsType +{ + INITPRIVS_INITDB = 'i', + INITPRIVS_EXTENSION = 'e' +} InitPrivsType; + +#endif /* PG_INIT_PRIVS_H */ |