using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using Npgsql.PostgresTypes;
using Npgsql.Util;
using NpgsqlTypes;
namespace Npgsql
{
class PostgresMinimalDatabaseInfoFactory : INpgsqlDatabaseInfoFactory
{
public Task Load(NpgsqlConnection conn, NpgsqlTimeout timeout, bool async)
=> Task.FromResult(
new NpgsqlConnectionStringBuilder(conn.ConnectionString).ServerCompatibilityMode == ServerCompatibilityMode.NoTypeLoading
? (NpgsqlDatabaseInfo)new PostgresMinimalDatabaseInfo(conn)
: null
);
}
class PostgresMinimalDatabaseInfo : PostgresDatabaseInfo
{
static readonly Version DefaultVersion = new Version(10, 0);
static readonly PostgresBaseType[] Types = typeof(NpgsqlDbType).GetFields()
.Select(f => f.GetCustomAttribute())
.OfType()
.Select(a => new PostgresBaseType("pg_catalog", a.Name, a.OID))
.ToArray();
protected override IEnumerable GetTypes() => Types;
internal PostgresMinimalDatabaseInfo(NpgsqlConnection conn)
: base(conn)
{
HasIntegerDateTimes = !conn.PostgresParameters.TryGetValue("integer_datetimes", out var intDateTimes) ||
intDateTimes == "on";
}
}
}