diff --git a/flaschengeist/database.py b/flaschengeist/database.py
index 410e0cf..ebda993 100644
--- a/flaschengeist/database.py
+++ b/flaschengeist/database.py
@@ -1,9 +1,31 @@
 from flask_sqlalchemy import SQLAlchemy
+from sqlalchemy import MetaData
 
-db = SQLAlchemy()
+# https://alembic.sqlalchemy.org/en/latest/naming.html
+metadata = MetaData(
+    naming_convention={
+        "pk": "pk_%(table_name)s",
+        "ix": "ix_%(table_name)s_%(column_0_name)s",
+        "uq": "uq_%(table_name)s_%(column_0_name)s",
+        "ck": "ck_%(table_name)s_%(constraint_name)s",
+        "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
+    }
+)
+
+
+db = SQLAlchemy(metadata=metadata)
 
 
 def case_sensitive(s):
+    """
+        Compare string as case sensitive on the database
+
+    Args:
+        s: string to compare
+
+    Example:
+        User.query.filter(User.name == case_sensitive(some_string))
+    """
     if db.session.bind.dialect.name == "mysql":
         from sqlalchemy import func