Fix #20 by skipping table and view missing from the catalogs.

src/sources/mysql.lisp

@@ -365,6 +365,11 @@
 
       (loop
          for (table-name . columns) in (append all-columns view-columns)
+
+         unless columns
+         do (log-message :error "Table ~s not found, skipping." table-name)
+
+         when columns
          do
            (let* ((encoding
                    ;; force the data encoding when asked to

test/parse/hans.goeuro.load

@@ -16,7 +16,7 @@ LOAD DATABASE
 
       column enumerate.foo using empty-string-to-null
 
- MATERIALIZE VIEWS
+ MATERIALIZE VIEWS nonexisting,
    d as $$
        select cast(d as date) as d, count(*) as n
          from plop