diff --git a/app/logical/post_query_builder.rb b/app/logical/post_query_builder.rb
index 5578da617..296933682 100644
--- a/app/logical/post_query_builder.rb
+++ b/app/logical/post_query_builder.rb
@@ -1145,6 +1145,9 @@ class PostQueryBuilder
 
       def parse_range(string, type = :integer)
         range = case string
+        when /\A(.+?)\.\.\.(.+)/ # A...B
+          lo, hi = [parse_cast($1, type), parse_cast($2, type)].sort
+          [:between, (lo...hi)]
         when /\A(.+?)\.\.(.+)/
           lo, hi = [parse_cast($1, type), parse_cast($2, type)].sort
           [:between, (lo..hi)]
diff --git a/test/unit/post_query_builder_test.rb b/test/unit/post_query_builder_test.rb
index ba02fc97e..6ccaac141 100644
--- a/test/unit/post_query_builder_test.rb
+++ b/test/unit/post_query_builder_test.rb
@@ -141,8 +141,12 @@ class PostQueryBuilderTest < ActiveSupport::TestCase
       assert_tag_match([posts[2], posts[1]], "id:>=#{posts[1].id}")
       assert_tag_match([posts[1], posts[0]], "id:<=#{posts[1].id}")
       assert_tag_match([posts[2], posts[0]], "id:#{posts[0].id},#{posts[2].id}")
-      assert_tag_match(posts.reverse, "id:#{posts[0].id}..#{posts[2].id}")
-      assert_tag_match(posts.reverse, "id:#{posts[2].id}..#{posts[0].id}")
+
+      assert_tag_match([posts[2], posts[1]], "id:#{posts[1].id}..")
+      assert_tag_match([posts[1], posts[0]], "id:..#{posts[1].id}")
+      assert_tag_match([posts[1], posts[0]], "id:#{posts[0].id}..#{posts[1].id}")
+      assert_tag_match([posts[1], posts[0]], "id:#{posts[1].id}..#{posts[0].id}")
+      assert_tag_match([posts[1], posts[0]], "id:#{posts[0].id}...#{posts[2].id}")
 
       assert_tag_match([], "id:#{posts[0].id} id:#{posts[2].id}")
       assert_tag_match([posts[1]], "id:>#{posts[0].id} id:<#{posts[2].id}")