IA201:
nulls distinct
BigQuery
Db2 (LUW)
MariaDB
MySQL
Oracle DB
PostgreSQL
SQL Server
SQLite
2005
2007
2009
2011
2013
2015
2017
2019
2021
2023
3.5.7 - 3.50.0
8.3 - 18
5.0 - 9.4.0
5.1 - 12.0.2