/
PostgreSQLSpecific.cs
52 lines (44 loc) · 1.44 KB
/
PostgreSQLSpecific.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
using System.Linq;
using System.Linq.Expressions;
using JetBrains.Annotations;
namespace LinqToDB.DataProvider.PostgreSQL
{
using Expressions;
using Linq;
using SqlProvider;
public interface IPostgreSQLSpecificTable<out TSource> : ITable<TSource>
where TSource : notnull
{
}
sealed class PostgreSQLSpecificTable<TSource> : DatabaseSpecificTable<TSource>, IPostgreSQLSpecificTable<TSource>, ITable
where TSource : notnull
{
public PostgreSQLSpecificTable(ITable<TSource> table) : base(table)
{
}
}
public interface IPostgreSQLSpecificQueryable<out TSource> : IQueryable<TSource>
{
}
sealed class PostgreSQLSpecificQueryable<TSource> : DatabaseSpecificQueryable<TSource>, IPostgreSQLSpecificQueryable<TSource>, ITable
{
public PostgreSQLSpecificQueryable(IQueryable<TSource> queryable) : base(queryable)
{
}
}
public static partial class PostgreSQLTools
{
[LinqTunnel, Pure, IsQueryable]
[Sql.QueryExtension(null, Sql.QueryExtensionScope.None, typeof(NoneExtensionBuilder))]
public static IPostgreSQLSpecificQueryable<TSource> AsPostgreSQL<TSource>(this IQueryable<TSource> source)
where TSource : notnull
{
var currentSource = LinqExtensions.ProcessSourceQueryable?.Invoke(source) ?? source;
return new PostgreSQLSpecificQueryable<TSource>(currentSource.Provider.CreateQuery<TSource>(
Expression.Call(
null,
MethodHelper.GetMethodInfo(AsPostgreSQL, source),
currentSource.Expression)));
}
}
}