Fix table comment also being applied to the primary key column

3 files changed, 10 insertions, 1 deletions

diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 8c5342edb2..2b5fc1c2f8 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,7 @@
+*   Fix table comment also being applied to the primary key column
+
+    *Guilherme Goettems Schneider*
+
 *   Allow generated `create_table` migrations to include or skip timestamps.
 
      *Michael Duchemin*
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 107d1ce855..bec22c9b03 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -302,7 +302,7 @@ module ActiveRecord
           if pk.is_a?(Array)
             td.primary_keys pk
           else
-            td.primary_key pk, options.fetch(:id, :primary_key), options
+            td.primary_key pk, options.fetch(:id, :primary_key), options.except(:comment)
           end
         end
 
diff --git a/activerecord/test/cases/comment_test.rb b/activerecord/test/cases/comment_test.rb
index 584e03d196..f2f28462d1 100644
--- a/activerecord/test/cases/comment_test.rb
+++ b/activerecord/test/cases/comment_test.rb
@@ -44,6 +44,11 @@ if ActiveRecord::Base.connection.supports_comments?
       @connection.drop_table "blank_comments", if_exists: true
     end
 
+    def test_primary_key_comment
+      column = Commented.columns_hash["id"]
+      assert_nil column.comment
+    end
+
     def test_column_created_in_block
       column = Commented.columns_hash["name"]
       assert_equal :string, column.type