Added '- pick a column -' as first option

datasette/templates/table.html

@@ -49,6 +49,7 @@
     {% endfor %}
     <p>
         <select name="_filter_column" style="font-size: 20px">
+            <option value="">- pick a column -</option>
             {% for column in display_columns %}
                 {% if column != 'rowid' %}
                     <option>{{ column }}</option>

datasette/utils.py

@@ -402,10 +402,10 @@ filter_column_re = re.compile(r'^_filter_column_\d+$')
 
 
 def filters_should_redirect(special_args):
-    print('special_args: ', special_args)
     redirect_params = []
     if '_filter_column' in special_args:
         filter_column = special_args['_filter_column']
+        if filter_column:
             filter_op = special_args.get('_filter_op') or ''
             filter_value = special_args.get('_filter_value') or ''
             if '__' in filter_op: