const char *const GucSource_Names[] =
{
	 /* PGC_S_DEFAULT */ "default",
	 /* PGC_S_DYNAMIC_DEFAULT */ "default",
	 /* PGC_S_ENV_VAR */ "environment variable",
	 /* PGC_S_FILE */ "configuration file",
	 /* PGC_S_ARGV */ "command line",
	 /* PGC_S_GLOBAL */ "global",
	 /* PGC_S_DATABASE */ "database",
	 /* PGC_S_USER */ "user",
	 /* PGC_S_DATABASE_USER */ "database user",
	 /* PGC_S_CLIENT */ "client",
	 /* PGC_S_OVERRIDE */ "override",
	 /* PGC_S_INTERACTIVE */ "interactive",
	 /* PGC_S_TEST */ "test",
	 /* PGC_S_SESSION */ "session"
};

select name, setting, source from pg_settings;

/*
 * Displayable names for context types (enum GucContext)
 *
 * Note: these strings are deliberately not localized.
 */
const char *const GucContext_Names[] =
{
	 /* PGC_INTERNAL */ "internal",
	 /* PGC_POSTMASTER */ "postmaster",
	 /* PGC_SIGHUP */ "sighup",
	 /* PGC_BACKEND */ "backend",
	 /* PGC_SUSET */ "superuser",
	 /* PGC_USERSET */ "user"
};

const char *const config_type_names[] =
{
	 /* PGC_BOOL */ "bool",
	 /* PGC_INT */ "integer",
	 /* PGC_REAL */ "real",
	 /* PGC_STRING */ "string",
	 /* PGC_ENUM */ "enum"
};

void
DefineCustomStringVariable(const char *name,
						   const char *short_desc,
						   const char *long_desc,
						   char **valueAddr,
						   const char *bootValue,
						   GucContext context,
						   int flags,
						   GucStringCheckHook check_hook,
						   GucStringAssignHook assign_hook,
						   GucShowHook show_hook)
{
	struct config_string *var;

	var = (struct config_string *)
		init_custom_variable(name, short_desc, long_desc, context, flags,
							 PGC_STRING, sizeof(struct config_string));
	var->variable = valueAddr;
	var->boot_val = bootValue;
	var->check_hook = check_hook;
	var->assign_hook = assign_hook;
	var->show_hook = show_hook;
	define_custom_variable(&var->gen);
}