don't prefix with Table name if interface

Author: mythz

src/ServiceStack.OrmLite/Expressions/SqlExpression.cs

@@ -1980,7 +1980,7 @@ protected virtual string GetQuotedColumnName(ModelDefinition tableDef, string me
                     ? fd.FieldName
                     : memberName;
 
-                var includePrefix = PrefixFieldWithTableName && fd?.CustomSelect == null;
+                var includePrefix = PrefixFieldWithTableName && fd?.CustomSelect == null && !tableDef.ModelType.IsInterface();
                 return includePrefix
                     ? DialectProvider.GetQuotedColumnName(tableDef, fieldName)
                     : DialectProvider.GetQuotedColumnName(fieldName);

tests/ServiceStack.OrmLite.Tests/UseCase/SoftDeleteUseCase.cs

@@ -1,5 +1,6 @@
 using NUnit.Framework;
 using ServiceStack.DataAnnotations;
+using ServiceStack.OrmLite.Tests.Shared;
 
 namespace ServiceStack.OrmLite.Tests.UseCase
 {
@@ -98,6 +99,10 @@ public void Can_add_generic_soft_delete_filter_to_SqlExpression_using_SqlExpress
                 db.Insert(new ModelWithSoftDelete { Name = "foo" });
                 db.Insert(new ModelWithSoftDelete { Name = "bar", IsDeleted = true });
 
+                db.DropAndCreateTable<Table1>();
+                db.Insert(new Table1 { Id = 1, String = "foo" });
+                db.Insert(new Table1 { Id = 2, String = "bar" });
+
                 var results = db.Select(db.From<ModelWithSoftDelete>());
 
                 Assert.That(results.Count, Is.EqualTo(1));
@@ -114,6 +119,16 @@ public void Can_add_generic_soft_delete_filter_to_SqlExpression_using_SqlExpress
                 result = db.Single<ModelWithSoftDelete>(x => x.Name == "bar");
                 Assert.That(result, Is.Null);
 
+                result = db.Single(db.From<ModelWithSoftDelete>()
+                    .Join<Table1>((m, t) => m.Name == t.String)
+                    .Where(x => x.Name == "foo"));
+                Assert.That(result.Name, Is.EqualTo("foo"));
+
+                result = db.Single(db.From<ModelWithSoftDelete>()
+                    .Join<Table1>((m, t) => m.Name == t.String)
+                    .Where(x => x.Name == "bar"));
+                Assert.That(result, Is.Null);
+
                 OrmLiteConfig.SqlExpressionSelectFilter = null;
             }
         }