[11.x] Use Default Schema Name on SQL Server

[hafezdivandari]

Fixes #50842

On SQL Server, Schema methods were always using dbo schema as default. This causes problem in a rare condition that user manually changes the default schema (e.g by calling alter user my_user with default_schema = my_schema). This PR fixes that by utilizing the actual default schema (not always dbo).

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[peterpeep]

Hi, @hafezdivandari

Is it possible to set the default schema for SQLSRV now using config/database.php
If so then how? If not then is there any future plan for that?

Thanks!!!

[hafezdivandari]

Hi @peterpeep, afaik SQL Server doesn't support setting default schema when establishing a connection (unlike PostgreSQL). The only way is to use alter user command on a not-admin user. So it seems there is no consistent way to implement this for SQL Server rn?