Allow ResultColumns to be optionally included in auto generated select sql

src/NPoco/ColumnInfo.cs

@@ -13,6 +13,12 @@ public class ColumnInfo
         public bool IgnoreColumn { get; set; }
         public bool ForceToUtc { get; set; }
         public Type ColumnType { get; set; }
+        public bool IncludeColumnInAutoQuery { get; set; }
+
+        public ColumnInfo()
+        {
+            IncludeColumnInAutoQuery = true;
+        }
 
         public static ColumnInfo FromMemberInfo(MemberInfo mi)
         {
@@ -33,6 +39,7 @@ public static ColumnInfo FromMemberInfo(MemberInfo mi)
             {
                 ci.IgnoreColumn = true;
             }
+            ci.IncludeColumnInAutoQuery = true;
 
             // Read attribute
             if (colAttrs.Any())
@@ -40,7 +47,13 @@ public static ColumnInfo FromMemberInfo(MemberInfo mi)
                 var colattr = colAttrs.First();
                 ci.ColumnName = colattr.Name ?? mi.Name;
                 ci.ForceToUtc = colattr.ForceToUtc;
-                ci.ResultColumn = colattr is ResultColumnAttribute;
+
+                var resultColumnAttr = colattr as ResultColumnAttribute;
+                if (resultColumnAttr != null)
+                {
+                    ci.ResultColumn = true;
+                    ci.IncludeColumnInAutoQuery = resultColumnAttr.IncludeInAutoSelect;
+                }
             }
             else
             {

src/NPoco/FluentMappings/ColumnConfigurationBuilder.cs

@@ -32,6 +32,7 @@ public interface IColumnBuilder
         IColumnBuilder Version();
         IColumnBuilder Ignore();
         IColumnBuilder Result();
+        IColumnBuilder Result(bool includeInAutoQuery);
     }
 
     public class ColumnBuilder : IColumnBuilder
@@ -74,6 +75,14 @@ public IColumnBuilder Ignore()
 
         public IColumnBuilder Result()
         {
+            _columnDefinition.IncludeInAutoQuery = false;
+            _columnDefinition.ResultColumn = true;
+            return this;
+        }
+
+        public IColumnBuilder Result(bool includeInAutoQuery)
+        {
+            _columnDefinition.IncludeInAutoQuery = includeInAutoQuery;
             _columnDefinition.ResultColumn = true;
             return this;
         }

src/NPoco/FluentMappings/ColumnDefinition.cs

@@ -12,5 +12,6 @@ public class ColumnDefinition
         public bool? IgnoreColumn { get; set; }
         public bool? VersionColumn { get; set; }
         public bool? ForceUtc { get; set; }
+        public bool? IncludeInAutoQuery { get; set; }
     }
 }
\ No newline at end of file

src/NPoco/FluentMappings/FluentMappingConfiguration.cs

@@ -142,6 +142,7 @@ private static void MergeOverrides(Dictionary<Type, TypeDefinition> config, Mapp
                     convColDefinition.VersionColumn = overrideColumnDefinition.Value.VersionColumn ?? convColDefinition.VersionColumn;
                     convColDefinition.MemberInfo = overrideColumnDefinition.Value.MemberInfo ?? convColDefinition.MemberInfo;
                     convColDefinition.ForceUtc = overrideColumnDefinition.Value.ForceUtc ?? convColDefinition.ForceUtc;
+                    convColDefinition.IncludeInAutoQuery = overrideColumnDefinition.Value.IncludeInAutoQuery ?? convColDefinition.IncludeInAutoQuery;
                 }
             }
         }

src/NPoco/FluentMappings/FluentMappingsPocoData.cs

@@ -66,6 +66,8 @@ public FluentMappingsPocoData(Type t, TypeDefinition typeConfig, IMapper mapper)
 
                     if (colattr.ForceUtc.HasValue && colattr.ForceUtc.Value)
                         pc.ForceToUtc = true;
+                    if (colattr.IncludeInAutoQuery.HasValue && colattr.IncludeInAutoQuery.Value)
+                        pc.IncludeInAutoQuery = true;
 
                     for (int i = 0; i < originalPK.Length; i++)
                     {
@@ -92,7 +94,7 @@ public FluentMappingsPocoData(Type t, TypeDefinition typeConfig, IMapper mapper)
             TableInfo.PrimaryKey = String.Join(",", originalPK);
 
             // Build column list for automatic select
-            QueryColumns = Columns.Where(x => !x.Value.ResultColumn).ToArray();
+            QueryColumns = Columns.Where(x => x.Value.IncludeInAutoQuery).ToArray();
 
         }
     }

src/NPoco/PocoColumn.cs

@@ -8,6 +8,7 @@ public class PocoColumn
         public PocoColumn()
         {
             ForceToUtc = true;
+            IncludeInAutoQuery = true;
         }
 
         public TableInfo TableInfo;
@@ -24,6 +25,7 @@ public Type ColumnType
 
         public bool ForceToUtc { get; set; }
         public string AutoAlias { get; set; }
+        public bool IncludeInAutoQuery { get; set; }
 
         public virtual void SetValue(object target, object val) { MemberInfo.SetMemberInfoValue(target, val); }
         public virtual object GetValue(object target) { return MemberInfo.GetMemberInfoValue(target); }

src/NPoco/PocoData.cs

@@ -60,6 +60,7 @@ public PocoData(Type t, IMapper mapper) : this()
                 pc.ResultColumn = ci.ResultColumn;
                 pc.ForceToUtc = ci.ForceToUtc;
                 pc.ColumnType = ci.ColumnType;
+                pc.IncludeInAutoQuery = ci.IncludeColumnInAutoQuery;
 
                 if (Mapper != null && !Mapper.MapMemberToColumn(mi, ref pc.ColumnName, ref pc.ResultColumn))
                     continue;
@@ -71,7 +72,7 @@ public PocoData(Type t, IMapper mapper) : this()
             }
 
             // Build column list for automatic select
-            QueryColumns = Columns.Where(c => !c.Value.ResultColumn).ToArray();
+            QueryColumns = Columns.Where(c => c.Value.IncludeInAutoQuery).ToArray();
         }
 
         protected string CreateAlias(string typeName, Type typeIn)

src/NPoco/ResultColumnAttribute.cs

@@ -5,6 +5,7 @@ namespace NPoco
     [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field)]
     public class ResultColumnAttribute : ColumnAttribute
     {
+        public bool IncludeInAutoSelect { get; set; }
         public ResultColumnAttribute() { }
         public ResultColumnAttribute(string name) : base(name) { }
     }