psql_command(const char *database, const char *query,...)
{
	char		query_formatted[1024];
	char		query_escaped[2048];
	char		psql_cmd[MAXPGPATH + 2048];
	va_list		args;
	char	   *s;
	char	   *d;

	/* Generate the query with insertion of sprintf arguments */
	va_start(args, query);
	vsnprintf(query_formatted, sizeof(query_formatted), query, args);
	va_end(args);

	/* Now escape any shell double-quote metacharacters */
	d = query_escaped;
	for (s = query_formatted; *s; s++)
	{
		if (strchr("\\\"$`", *s))
			*d++ = '\\';
		*d++ = *s;
	}
	*d = '\0';

	/* And now we can build and execute the shell command */
	snprintf(psql_cmd, sizeof(psql_cmd),
			 SYSTEMQUOTE "\"%s%spsql\" -X -c \"%s\" \"%s\"" SYSTEMQUOTE,
			 psqldir ? psqldir : "",
			 psqldir ? "/" : "",
			 query_escaped,
			 database);

	if (system(psql_cmd) != 0)
	{
		/* psql probably already reported the error */
		fprintf(stderr, _("command failed: %s\n"), psql_cmd);
		exit(2);
	}
}
psql_command(const char *database, const char *query,...)
{
	char		query_formatted[1024];
	char		query_escaped[2048];
	char		psql_cmd[MAXPGPATH + 2048];
	va_list		args;
	char	   *s;
	char	   *d;

	 
	va_start(args, query);
	vsnprintf(query_formatted, sizeof(query_formatted), query, args);
	va_end(args);

	 
	d = query_escaped;
	for (s = query_formatted; *s; s++)
	{
		if (strchr("\\\"$`", *s))
			*d++ = '\\';
		*d++ = *s;
	}
	*d = '\0';

	 
	snprintf(psql_cmd, sizeof(psql_cmd),
			 SYSTEMQUOTE "\"%s%spsql\" -X -c \"%s\" \"%s\"" SYSTEMQUOTE,
			 psqldir ? psqldir : "",
			 psqldir ? "/" : "",
			 query_escaped,
			 database);

	if (system(psql_cmd) != 0)
	{
		 
		fprintf(stderr, _("command failed: %s\n"), psql_cmd);
		exit(2);
	}
}