Fix error counts when transformation functions fail.

Related to #249, stop reporting 0 errors on sources where we failed to
handle some data transformation.

src/package.lisp

@@ -209,7 +209,10 @@
                 #:format-vector-row)
   (:import-from #:pgloader.sources
                 #:map-rows
-                #:transforms)
+                #:transforms
+                #:target)
+  (:import-from #:pgloader.utils
+                #:pgstate-incf)
   (:export #:map-push-queue))
 
 

src/queue.lisp

@@ -54,7 +54,8 @@
           (incf count)))
 
     (condition (e)
-      (log-message :error "~a" e))))
+      (log-message :error "~a" e)
+      (pgstate-incf *state* (target copy) :errs 1))))
 
 (defun map-push-queue (copy queue &optional pre-formatted)
   "Apply MAP-ROWS on the COPY instance and a function of ROW that will push