.Net DbContext for Postgres that lowercases identifiers so that quotes are not needed everywhere

LowerCaseIdentifiersForAppDbOnPostgres.cs

    public class AppDbOnPostgres : DbContext
    {
        public AppDbOnPostgres(NpgsqlConnection dbConnection):base(dbConnection){}
        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
            => optionsBuilder
                .UseNpgsql(dbConnection)
                .ReplaceService<ISqlGenerationHelper,NpgsqlSqlGenerationLowercasingHelper>();
    }

NpgsqlSqlGenerationLowercasingHelper.cs

using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using Microsoft.EntityFrameworkCore.Storage;
using Npgsql.EntityFrameworkCore.PostgreSQL.Storage.Internal;

#pragma warning disable EF1001

namespace YourNamespaceOfChoice
{
    /// <summary>A replacement for <see cref="NpgsqlSqlGenerationHelper"/>
    /// that converts PascalCase_Csharpy_Identifiers to alllowercase.
    /// So table and column names with no embedded punctuation get
    /// generated with no quotes or delimiters, making life that
    /// much sweeter for all.</summary>
    /// <a href="https://stackoverflow.com/questions/35914530/case-insensitive-name-of-tables-and-properties-in-entity-framework-7">https://stackoverflow.com/questions/35914530/case-insensitive-name-of-tables-and-properties-in-entity-framework-7</a>
    public class NpgsqlSqlGenerationLowercasingHelper : NpgsqlSqlGenerationHelper
    {
        //Don't lowercase ef's migration table, locale descriptions, …
        static readonly Regex[] DontAlter= new[]
        {
            new Regex("__efmigrationshistory",RegexOptions.Compiled|RegexOptions.IgnoreCase),
            new Regex(@"\w{1,3}_\w{1,3}\.UTF-\d{1,2}",RegexOptions.Compiled|RegexOptions.IgnoreCase)
        };
        static string Customize(string input) => DontAlter.Any(r=>r.IsMatch(input)) ? input : input.ToLower();
        public NpgsqlSqlGenerationLowercasingHelper(RelationalSqlGenerationHelperDependencies dependencies) 
            : base(dependencies) { }
        public override string DelimitIdentifier(string identifier)
            => base.DelimitIdentifier(Customize(identifier));
        public override void DelimitIdentifier(StringBuilder builder, string identifier)
            => base.DelimitIdentifier(builder, Customize(identifier));
    }    
}

From https://stackoverflow.com/questions/35914530/case-insensitive-name-of-tables-and-properties-in-entity-framework-7