init

db_include/catalog/pg_init_privs.h

@@ -0,0 +1,84 @@
+/*-------------------------------------------------------------------------
+ *
+ * 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) 1996-2021, 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 BKI_LOOKUP(pg_class);	/* 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;
+
+DECLARE_TOAST(pg_init_privs, 4155, 4156);
+
+DECLARE_UNIQUE_INDEX_PKEY(pg_init_privs_o_c_o_index, 3395, on pg_init_privs using btree(objoid oid_ops, classoid oid_ops, objsubid int4_ops));
+#define InitPrivsObjIndexId  3395
+
+/*
+ * 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 */