public void TsQueryNot()
{
using (var context = new BloggingContext(ConnectionString))
{
context.Database.Log = Console.Out.WriteLine;
context.Blogs.Add(new Blog {
Name = "_"
});
context.SaveChanges();
var result = context.Blogs.Select(
x => NpgsqlTextFunctions.QueryNot(NpgsqlTextFunctions.AsTsQuery("cat"))).First();
Assert.That(
NpgsqlTsQuery.Parse(result).ToString(),
Is.EqualTo(NpgsqlTsQuery.Parse("! 'cat'").ToString()));
}
}