wuhyn commented on PR #43236:
URL: https://github.com/apache/superset/pull/43236#issuecomment-5461485813
Hi @rusackas, thanks for providing an in-depth review.
The shifting of the WEEK time grain caused by the change was actually
unintentional, I can list this as behavioural cleanup in the original linked
issue. I confirmed it actually sets the first day of the week as Monday
according to ISO 8601 standards, similar to Postgres.
```
db2 => select DATE_TRUNC('week', current_date) from sysibm.sysdummy1
1
-------------------
2026-08-24-00.00.00
1 record(s) selected.
```
The DATE_TRUNC function was introduced in IBM Db2 for Linux, UNIX and
Windows 11.1.0 version according to the [SQL compatibility enhancements
docs](https://www.ibm.com/docs/en/db2/11.1.0?topic=ga-sql-compatibility-enhancements).
I can list 11.1.0 as the minimum version requirement in the [Db2 supported
database](https://superset.apache.org/user-docs/databases/supported/ibm-db2)
section.
It would be good to confirm with the containers. Please let me know if I
need to do anything else to proceed.
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