I am using EF Core 2.0 to create a table in which the primary key is a GUID
and the clustered index is an auto-incrementing INT
column. But I'm getting this error:
Cannot create more than one clustered index on table 'Tenants'. Drop the existing clustered index 'PK_Tenants' before creating another
This is the code for creating entity and Fluent API.
Tenant.cs
public class Tenant : EntityBase
{
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int ClusteredId { get; set; }
public new Guid TenantId { get; set; }
public string TenantCode { get; set; }
}
FluentAPI
protected override void OnModelCreating(ModelBuilder builder)
{
builder.Entity<Tenant>().HasIndex(c => c.TenantId).ForSqlServerIsClustered(false);
builder.Entity<Tenant>().HasIndex(c => c.ClusteredId).HasName("ClusteredId").ForSqlServerIsClustered(true);
base.OnModelCreating(builder);
}
Please suggest, how to remove this error and create primary key for GUID
and clustered index for auto-incrementing INT
column.
Thanks.
The PK index is not maintained explicitly. In EF Core it can be configured via KeyBuilder
fluent API (note the HasKey
in place of HasIndex
):
builder.Entity<Tenant>().HasKey(c => c.TenantId).ForSqlServerIsClustered(false);
builder.Entity<Tenant>().HasIndex(c => c.ClusteredId).HasName("ClusteredId").ForSqlServerIsClustered(true);