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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb2
-rw-r--r--activerecord/test/cases/comment_test.rb2
2 files changed, 2 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index 3dad43ced8..6e35bb0bbe 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -284,7 +284,7 @@ module ActiveRecord
def table_comment(table_name) # :nodoc:
scope = quoted_scope(table_name)
- query_value(<<-SQL.strip_heredoc, "SCHEMA")
+ query_value(<<-SQL.strip_heredoc, "SCHEMA").presence
SELECT table_comment
FROM information_schema.tables
WHERE table_schema = #{scope[:schema]}
diff --git a/activerecord/test/cases/comment_test.rb b/activerecord/test/cases/comment_test.rb
index 40eb3e08c1..584e03d196 100644
--- a/activerecord/test/cases/comment_test.rb
+++ b/activerecord/test/cases/comment_test.rb
@@ -150,7 +150,7 @@ if ActiveRecord::Base.connection.supports_comments?
def test_change_table_comment_to_nil
@connection.change_table_comment :commenteds, nil
- assert @connection.table_comment("commenteds").blank?
+ assert_nil @connection.table_comment("commenteds")
end
def test_change_column_comment