/// <summary>
    ///     This API supports the Entity Framework Core infrastructure and is not intended to be used
    ///     directly from your code. This API may change or be removed in future releases.
    /// </summary>
    public virtual ValueGenerator Create(
        IProperty property,
        NpgsqlSequenceValueGeneratorState generatorState,
        INpgsqlRelationalConnection connection,
        IRawSqlCommandBuilder rawSqlCommandBuilder,
        IRelationalCommandDiagnosticsLogger commandLogger)
    {
        var type = property.ClrType.UnwrapNullableType().UnwrapEnumType();

        if (type == typeof(long))
        {
            return(new NpgsqlSequenceHiLoValueGenerator <long>(rawSqlCommandBuilder, _sqlGenerator, generatorState, connection, commandLogger));
        }

        if (type == typeof(int))
        {
            return(new NpgsqlSequenceHiLoValueGenerator <int>(rawSqlCommandBuilder, _sqlGenerator, generatorState, connection, commandLogger));
        }

        if (type == typeof(short))
        {
            return(new NpgsqlSequenceHiLoValueGenerator <short>(rawSqlCommandBuilder, _sqlGenerator, generatorState, connection, commandLogger));
        }

        if (type == typeof(byte))
        {
            return(new NpgsqlSequenceHiLoValueGenerator <byte>(rawSqlCommandBuilder, _sqlGenerator, generatorState, connection, commandLogger));
        }

        if (type == typeof(char))
        {
            return(new NpgsqlSequenceHiLoValueGenerator <char>(rawSqlCommandBuilder, _sqlGenerator, generatorState, connection, commandLogger));
        }

        if (type == typeof(ulong))
        {
            return(new NpgsqlSequenceHiLoValueGenerator <ulong>(rawSqlCommandBuilder, _sqlGenerator, generatorState, connection, commandLogger));
        }

        if (type == typeof(uint))
        {
            return(new NpgsqlSequenceHiLoValueGenerator <uint>(rawSqlCommandBuilder, _sqlGenerator, generatorState, connection, commandLogger));
        }

        if (type == typeof(ushort))
        {
            return(new NpgsqlSequenceHiLoValueGenerator <ushort>(rawSqlCommandBuilder, _sqlGenerator, generatorState, connection, commandLogger));
        }

        if (type == typeof(sbyte))
        {
            return(new NpgsqlSequenceHiLoValueGenerator <sbyte>(rawSqlCommandBuilder, _sqlGenerator, generatorState, connection, commandLogger));
        }

        throw new ArgumentException(CoreStrings.InvalidValueGeneratorFactoryProperty(
                                        nameof(NpgsqlSequenceValueGeneratorFactory), property.Name, property.DeclaringEntityType.DisplayName()));
    }
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 /// <summary>
 ///     This API supports the Entity Framework Core infrastructure and is not intended to be used
 ///     directly from your code. This API may change or be removed in future releases.
 /// </summary>
 public NpgsqlSequenceHiLoValueGenerator(
     IRawSqlCommandBuilder rawSqlCommandBuilder,
     IUpdateSqlGenerator sqlGenerator,
     NpgsqlSequenceValueGeneratorState generatorState,
     INpgsqlRelationalConnection connection,
     IRelationalCommandDiagnosticsLogger commandLogger)
     : base(generatorState)
 {
     _sequence             = generatorState.Sequence;
     _rawSqlCommandBuilder = rawSqlCommandBuilder;
     _sqlGenerator         = sqlGenerator;
     _connection           = connection;
     _commandLogger        = commandLogger;
 }