Does EF Core allow a filtered/partial unique index which does not allow multiple NULLs?

Is this an EF Core bug or an I doing it wrong to update one entity?

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Does EF Core allow a unique column to contain multiple nulls?

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EF Core / Sqlite one-to-many relationship failing on Unique Index Constraint

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Entity Framework Core - prevent multiple null values on unique indexes

In connection with this: ...Does EF Core permit more than one null in a single column?...Even empty values, which are not unique, should be....config.Entity<Product>() .HasIndex(b => b.ProductId) .IsUnique(); ...The SQL equivalent is functional....[ProductId] int null unique foreign key references Product([Id]) ...Can I change this code to ...

Error while doing Migrations EF core 2.0, changing Identity id from string to int

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Generate a composite unique constraint/index with owned entity, in EF Core

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EF Core One to One relationship on many tables allows duplicate entries

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Entity Framework Core MigrationBuilder "ALTER DATABASE statement not allowed within multi-statement transaction."

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'No suitable constructor found for entity type' when doing EF Core migration (SmartEnum)

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Setting a column unique null without being an index in .NET EF Core

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