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-rw-r--r--activerecord/test/cases/migration/columns_test.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/test/cases/migration/columns_test.rb b/activerecord/test/cases/migration/columns_test.rb
index 1b1d0af132..8ca20b6172 100644
--- a/activerecord/test/cases/migration/columns_test.rb
+++ b/activerecord/test/cases/migration/columns_test.rb
@@ -142,6 +142,10 @@ module ActiveRecord
end
def test_remove_column_with_multi_column_index
+ # MariaDB starting with 10.2.8
+ # Dropping a column that is part of a multi-column UNIQUE constraint is not permitted.
+ skip if current_adapter?(:Mysql2Adapter) && connection.mariadb? && connection.version >= "10.2.8"
+
add_column "test_models", :hat_size, :integer
add_column "test_models", :hat_style, :string, limit: 100
add_index "test_models", ["hat_style", "hat_size"], unique: true