using System;
using System.Data;
using System.Linq;
using Microsoft.EntityFrameworkCore;

using var db = new BloggingContext();

var qs = db.Blogs
	.Select(x => x.NullableInt > 0)
    .ToQueryString();

Console.WriteLine(qs);

public class BloggingContext : DbContext
{
    public DbSet<Blog> Blogs { get; set; }

    protected override void OnConfiguring(DbContextOptionsBuilder options)
        => options
            .LogTo(Console.WriteLine, Microsoft.Extensions.Logging.LogLevel.Information)
            .UseSqlServer();

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
		modelBuilder.Entity<Blog>().HasData(new Blog { BlogId = 1, NullableInt = 0 });
		modelBuilder.Entity<Blog>().HasData(new Blog { BlogId = 2, NullableInt = 1 });
		modelBuilder.Entity<Blog>().HasData(new Blog { BlogId = 3, NullableInt = null });
    }
}

public class Blog
{
    public int BlogId { get; set; }
	public int? NullableInt { get; set; }
}