Add information about drop support MsSQL as DB Backend in the future

[Taragolis]

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[eladkal]

Lets wait for vote to finish :)

I belive we will terminate MSSQL for Airflow 2.8.0 cc @potiuk ?

[potiuk]

Lets wait for vote to finish :)

I belive we will terminate MSSQL for Airflow 2.8.0 cc @potiuk ?

If somoene implements the removal and migration solution to Postgres- yes. The condition of dropping MSSQL was to get a tool that will help MSSQL users to migrate to Postgres, so we have to implement it.

[Taragolis]

Let's explain my motivation for add it now, even if we drop in 2.8.0. User who make chouse MsSQL at 2.7.2 actually make non-obvious selection for Postgres 🤣

[potiuk]

Let's explain my motivation for add it now, even if we drop in 2.8.0. User who make chouse MsSQL at 2.7.2 actually make non-obvious selection for Postgres 🤣

Yes. We shoudl definitely add the information now. And also mark it clearly as deprecated for 2.7.2