Megatest

	(all-stmts   '())              ;; ( ( stmt1 value1 ) ( stml2 value2 ))
	(numrecs     (make-hash-table))
	(start-time  (current-milliseconds))
	(tot-count   0))

    (for-each ;; table
     (lambda (tabledat)
       (condition-case
       (db:sync-one-table fromdb todb tabledat last-update numrecs))
	   (db:sync-one-table fromdb todb tabledat last-update numrecs)
	 ;; if db is busy, take a break and try one more time
	 (exn (busy)(thread-sleep! 0.5)
	      (db:sync-one-table fromdb todb tabledat last-update numrecs))))
     tbls)

    (let* ((runtime      (- (current-milliseconds) start-time))
	   (should-print (or (debug:debug-mode 12)
			     (common:low-noise-print 120 "db sync" (> runtime 500))))) ;; low and high sync times treated as separate.
      (if should-print (debug:print 3 *default-log-port* "INFO: db sync, total run time " runtime " ms"))
      (for-each 

;; look up values in a header/data structure
(define (db:get-value-by-header row header field)
  (if (or (null? header) (not row))
      #f
      (let loop ((hed (car header))
                 (tal (cdr header))
                 (n   0))
        (if (equal? hed field)
            (handle-exceptions
             exn
        (if (equal? hed field);;(condition-case (vector-ref #(1 2 3) 3)(exn (bounds)(print "out of bounds")))
            (condition-case
		(vector-ref row n)
	      (exn (bounds)
             (begin
               (debug:print 0 *default-log-port* "WARNING: attempt to read non-existant field, row="
			    row " header=" header " field=" field ", exn=" exn)
               #f)
		   (debug:print 0 *default-log-port* "WARNING: attempt to read non-existant field, row="
				row " header=" header " field=" field ", exn=" exn)
		   #f))
             (vector-ref row n))
	    (if (null? tal) #f (loop (car tal)(cdr tal)(+ n 1)))))))

;; Accessors for the header/data structure
;; get rows and header from 
(define (db:get-header vec)(vector-ref vec 0))
(define (db:get-rows   vec)(vector-ref vec 1))

			    (begin
                              (handle-exceptions
                               exn
                               (begin
                                  (debug:print 0 *default-log-port*
                                  "WARNING: itemmap has problem \"" itemmap "\", patt: " patt ", repl: " repl ", exn=" exn)
                                 res)
                              (string-substitute patt repl res))
                              (string-substitute patt repl res)))


                              )
			    (begin
                              (debug:print 0 *default-log-port*
                               "WARNING: itemmap has problem \"" itemmap "\", patt: " patt ", repl: " repl)
			      res))))
	    (if (null? tal)
		newr
		(loop (car tal)(cdr tal) newr)))))))