Merge "migrate labels to new tutorial" into main

diff --cc doc/build/glossary.rst
Simple merge

diff --cc doc/build/orm/persistence_techniques.rst
Simple merge

diff --cc lib/sqlalchemy/dialects/mysql/base.py
Simple merge

diff --cc lib/sqlalchemy/dialects/postgresql/psycopg2.py
Simple merge

diff --cc lib/sqlalchemy/engine/cursor.py
Simple merge

diff --cc lib/sqlalchemy/sql/dml.py
Simple merge

diff --cc lib/sqlalchemy/sql/selectable.py
Simple merge