int
main(int argc, char **argv)
{
	migratorContext ctx = {0};
	int			ntablespaces = 0;
	int			i = 0;
	char	  **tablespaces = NULL;		/* array to store table space paths of
										 * old data */
	struct timezone tz;

	parseCommandLine(&ctx, argc, argv);
	setup(&ctx, argv[0]);
	

	/* -- OLD -- */
	start_postmaster(&ctx, "Starting postmaster to service old cluster", CLUSTER_OLD);

	/* Add any required support functions to the old cluster */
	create_support_functions(&ctx, "Adding support functions to old cluster",
							 ctx.m_oldlibpath, ctx.m_oldbindir, CLUSTER_OLD);

	/* Get the pg_database and pg_largeobject relation OID's */
	get_db_LO_relfilenodes(&ctx, CLUSTER_OLD);

	/* Extract a list of databases and tables from the old cluster */
	gen_db_info(&ctx, &ctx.m_olddbarr, CLUSTER_OLD);

	dump_old_schema(&ctx, DUMP_FILE);

	tablespaces = get_tablespace_paths(&ctx, &ntablespaces, CLUSTER_OLD);

	stop_postmaster(&ctx, CLUSTER_OLD);

	/* Rename all tablespace paths */
	rename_tablespaces(&ctx, tablespaces, ntablespaces);


	/* -- NEW -- */
	start_postmaster(&ctx, "Starting postmaster to service new cluster", CLUSTER_NEW);

	/* XXX check that new database is empty */
	/*
	 *	It would make more sense to freeze after loading the schema, but
	 *	that would cause us to lose the frozenids restored by the load.
	 */
	prepStatus(&ctx, "Freezing all rows on the new server");
	exec_prog(&ctx, true, "%s/vacuumdb --port %d --all --frozen --full >> %s 2>&1",
			  ctx.m_newbindir, ctx.m_newport, ctx.m_logfile);
	check_ok(&ctx);

	stop_postmaster(&ctx, CLUSTER_NEW);


	ask_continue(&ctx);

	copy_clog_xlog_xid(&ctx);
	/* New now using xid of old system */


	/* -- NEW -- */
	start_postmaster(&ctx, "Starting postmaster to service new cluster", CLUSTER_NEW);
	create_support_functions(&ctx, "Adding support functions to new cluster",
							 ctx.m_newlibpath, ctx.m_newbindir, CLUSTER_NEW);
	get_db_LO_relfilenodes(&ctx, CLUSTER_NEW);

	/*
	 * Although the schema load will create all the databases, we need to perform
	 * this step first in order to create toast table placeholder relfiles.
	 */
	create_databases(&ctx, &ctx.m_olddbarr, ctx.m_newbindir);

	prepStatus(&ctx, "Creating placeholder relfiles for toast relations");
	create_placeholder_relfiles(&ctx, &ctx.m_olddbarr, ctx.m_newpgdata);
	check_ok(&ctx);

	prepStatus(&ctx, "Restoring database schema");
	exec_prog(&ctx, false, "%s/%s --port %d --dbname template1 < %s/%s >> %s 2>&1",
			  ctx.m_newbindir, ctx.m_newpsql_command, ctx.m_newport,
			  ctx.m_homedir, DUMP_FILE, ctx.m_logfile);
	check_ok(&ctx);

	process_relfiles(&ctx);
	
	stop_postmaster(&ctx, CLUSTER_NEW);


#ifdef NOT_USED
	/* XXX do we need this at all?  */
	/*
	 *	Assuming OIDs are only used in system tables, there is no need to
	 *	restore the OID counter because we have not transfered any OIDs
	 *	from the old system.
	 */
	prepStatus(&ctx, "Setting next oid for new cluster");
	exec_prog(&ctx, true, "%s/pg_resetxlog -o %u %s 1>/dev/null",
		  ctx.m_newbindir, ctx.m_oldctrldata.chkpnt_nxtoid, ctx.m_newpgdata);
	check_ok(&ctx);
#endif

	cleanup(&ctx);
	
	if (gettimeofday(&ctx.m_endtime, &tz) == -1)
		pg_log(&ctx, PG_FATAL, "Unable to get time");

	pg_log(&ctx, PG_REPORT, "\nThe data migration completed in %d seconds\n",
		   ctx.m_endtime.tv_sec - ctx.m_starttime.tv_sec);
	return 0;
}