reports ambiguities in
set
⓷
BigQuery
Db2 (LUW)
DuckDB
H2
Oracle DB
PostgreSQL
SQL Server
2007
2009
2011
2013
2015
2017
2019
2021
2023
2025
✓ 2008R2 - 2025
✓ 15 - 18
⚡ 11gR1 - 23.26.0
a
✓ 1.4.198 - 2.4.240
✓ 1.4.0+
⚡ 9.7 - 12.1.2
a
✓ 2.0
⚡No error raised: implementation-defined resolution of ambiguous column names