## v0.9.18

- 增加 PostgreSQL 的 Odbc 访问提供，相比 FreeSql.Provider.PostgreSQL 支持的类型更少；
- 增加 通用的 Odbc 访问提供，不能迁移实体到数据库，不能 Skip 这样来分页，理论上能 crud 所有 odbc 数据库；

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/Curd/PostgreSQLDeleteTest.cs

@@ -0,0 +1,97 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQL
+{
+    public class PostgreSQLDeleteTest
+    {
+
+        IDelete<Topic> delete => g.pgsql.Delete<Topic>();
+
+        [Table(Name = "tb_topic_del")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+
+        [Fact]
+        public void Dywhere()
+        {
+            Assert.Null(g.pgsql.Delete<Topic>().ToSql());
+            var sql = g.pgsql.Delete<Topic>(new[] { 1, 2 }).ToSql();
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1 OR \"id\" = 2)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new Topic { Id = 1, Title = "test" }).ToSql();
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).ToSql();
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1 OR \"id\" = 2)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new { id = 1 }).ToSql();
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1)", sql);
+        }
+
+        [Fact]
+        public void Where()
+        {
+            var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1)", sql);
+
+            sql = delete.Where("id = @id", new { id = 1 }).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (id = @id)", sql);
+
+            var item = new Topic { Id = 1, Title = "newtitle" };
+            sql = delete.Where(item).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1)", sql);
+
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            sql = delete.Where(items).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);
+        }
+        [Fact]
+        public void WhereExists()
+        {
+
+        }
+        [Fact]
+        public void ExecuteAffrows()
+        {
+
+            var id = g.pgsql.Insert<Topic>(new Topic { Title = "xxxx" }).ExecuteIdentity();
+            Assert.Equal(1, delete.Where(a => a.Id == id).ExecuteAffrows());
+        }
+        [Fact]
+        public void ExecuteDeleted()
+        {
+
+            delete.Where(a => a.Id > 0).ExecuteDeleted();
+        }
+
+        [Fact]
+        public void AsTable()
+        {
+            Assert.Null(g.pgsql.Delete<Topic>().ToSql());
+            var sql = g.pgsql.Delete<Topic>(new[] { 1, 2 }).AsTable(a => "TopicAsTable").ToSql();
+            Assert.Equal("DELETE FROM \"topicastable\" WHERE (\"id\" = 1 OR \"id\" = 2)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new Topic { Id = 1, Title = "test" }).AsTable(a => "TopicAsTable").ToSql();
+            Assert.Equal("DELETE FROM \"topicastable\" WHERE (\"id\" = 1)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).AsTable(a => "TopicAsTable").ToSql();
+            Assert.Equal("DELETE FROM \"topicastable\" WHERE (\"id\" = 1 OR \"id\" = 2)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new { id = 1 }).AsTable(a => "TopicAsTable").ToSql();
+            Assert.Equal("DELETE FROM \"topicastable\" WHERE (\"id\" = 1)", sql);
+        }
+    }
+}