Enabling split queries globally.

[maliming]

EF Core uses single query mode by default in the absence of any configuration. Since it may cause performance issues, EF Core generates a warning whenever following conditions are met:

• EF Core detects that the query loads multiple collections.
• User hasn't configured query splitting mode globally.
• User hasn't used AsSingleQuery/AsSplitQuery operator on the query.

To turn off the warning, configure query splitting mode globally or at the query level to an appropriate value.

https://docs.microsoft.com/en-us/ef/core/querying/single-split-queries#enabling-split-queries-globally

[hikalkan]

We should write this to the EF Core integration document, so people will know it. Can you write please?

[maliming]

acee880