Megatest

		    (changedrec (conc "SELECT "fromdb table".id FROM "fromdb table" join "todb table" on "fromdb table".id="todb table".id WHERE "fromdb table".last_update > "todb table".last_update;"))
                                    ;; SELECT main.tests.id FROM main.tests join auxdb.tests on main.tests.id=auxdb.tests.id WHERE main.tests.last_update > auxdb.tests.last_update;"
		    (start-ms   (current-milliseconds))
		    (new-ids    (sqlite3:fold-row (lambda (res id)(cons id res)) '() dbh newrec)))
	       ;; (debug:print 0 *default-log-port* "Got "(length aux-ids)" in aux-ids and "(length main-ids)" in main-ids")
	       (update-changed (length new-ids) table "new records")
	       (mutex-lock! *db-transaction-mutex*)
	       (handle-exceptions
		   exn
		   (debug:print 0 *default-log-port* "Transaction update of "table" failed.")
		 (sqlite3:with-transaction
		  dbh
		  (lambda ()
		    (for-each (lambda (id)
				(sqlite3:execute dbh stmt2 id))
			      new-ids))))
	       
	       (if (member "last_update" fields)
		   (handle-exceptions
		       exn
		       (debug:print 0 *default-log-port* "Transaction update of "table" failed.")
		     (sqlite3:with-transaction
		      dbh
		      (lambda ()
			(let* ((changed-ids  (sqlite3:fold-row (lambda (res id)(cons id res)) '() dbh changedrec)))
			  (update-changed (length changed-ids) table "changed records")
			  (for-each (lambda (id)
				      (sqlite3:execute dbh stmt9 id id))
				    changed-ids))))))
		   
	       (mutex-unlock! *db-transaction-mutex*)
	       
	       (debug:print 0 *default-log-port* "Synced table "table
	        	    " in "(- (current-milliseconds) start-ms)"ms")
	       
	       ))
	   table-names)