Cleanup enums.adoc #845

Job	Run time
CI (ubuntu-latest, 11, DB2-11.5) / Run tests	5m 21s
CI (ubuntu-latest, 11, MariaDB-10.4) / Run tests	2m 22s
CI (ubuntu-latest, 11, MSSQL-2019-latest) / Run tests	1m 32s
CI (ubuntu-latest, 11, MSSQL-2017-latest) / Run tests	1m 31s
CI (ubuntu-latest, 11, MySQL-5.7) / Run tests	2m 39s
CI (ubuntu-latest, 11, MySQL-5.6) / Run tests	2m 17s
CI (ubuntu-latest, 11, MySQL-8.0) / Run tests	2m 46s
CI (ubuntu-latest, 11, PostgreSQL-10) / Run tests	4m 19s
CI (ubuntu-latest, 11, PostgreSQL-11) / Run tests	4m 8s
CI (ubuntu-latest, 11, PostgreSQL-9) / Run tests	4m 37s
CI (ubuntu-latest, 11, SQL-templates) / Run tests	6m 7s
CI (ubuntu-latest, 17, MariaDB-10.4) / Run tests	2m 23s
CI (ubuntu-latest, 17, MSSQL-2019-latest) / Run tests	1m 37s
CI (ubuntu-latest, 17, MySQL-5.7) / Run tests	2m 6s
CI (ubuntu-latest, 17, Oracle-23) / Run tests	2m 1s
CI (ubuntu-latest, 17, PostgreSQL-11) / Run tests	4m 36s
Deploy to OSSRH / Deploy to OSSRH	1m 20s
Deploy to OSSRH / Deploy (Oracle) to OSSRH	24s
	52m 6s

Provide feedback