Override Bind/Read in SqlServer's TypeMapper only

Author: SergeiPavlov

Orm/Xtensive.Orm.SqlServer/Sql.Drivers.SqlServer/v09/TypeMapper.cs

@@ -80,6 +80,26 @@ public override void BindString(DbParameter parameter, object value)
         : NVarCharMaxLength;
     }
 
+#if NET6_0_OR_GREATER
+    public override void BindDateOnly(DbParameter parameter, object value)
+    {
+      parameter.DbType = DbType.Date;
+      parameter.Value = value != null ? (DateOnly) value : DBNull.Value;
+    }
+
+    public override void BindTimeOnly(DbParameter parameter, object value)
+    {
+      parameter.DbType = DbType.Time;
+      parameter.Value = value != null ? (TimeOnly) value : DBNull.Value;
+    }
+
+    public override object ReadDateOnly(DbDataReader reader, int index) =>
+      reader.GetFieldValue<DateOnly>(index);
+
+    public override object ReadTimeOnly(DbDataReader reader, int index) =>
+      reader.GetFieldValue<TimeOnly>(index);
+#endif
+
     public override SqlValueType MapSByte(int? length, int? precision, int? scale)
     {
       return new SqlValueType(SqlType.Int16);

Orm/Xtensive.Orm/Sql/ValueTypeMapping/TypeMapper.cs

@@ -136,13 +136,13 @@ public virtual void BindDateTime(DbParameter parameter, object value)
     public virtual void BindDateOnly(DbParameter parameter, object value)
     {
       parameter.DbType = DbType.Date;
-      parameter.Value = value != null ? (DateOnly) value : DBNull.Value;
+      parameter.Value = value != null ? ((DateOnly) value).ToDateTime(TimeOnly.MinValue) : DBNull.Value;
     }
 
     public virtual void BindTimeOnly(DbParameter parameter, object value)
     {
       parameter.DbType = DbType.Time;
-      parameter.Value = value != null ? (TimeOnly) value : DBNull.Value;
+      parameter.Value = value != null ? ((TimeOnly) value).ToTimeSpan() : DBNull.Value;
     }
 #endif
 
@@ -226,10 +226,10 @@ public virtual object ReadDateTime(DbDataReader reader, int index) =>
 #if NET6_0_OR_GREATER
 
     public virtual object ReadDateOnly(DbDataReader reader, int index) =>
-      reader.GetFieldValue<DateOnly>(index);
+        DateOnly.FromDateTime(reader.GetFieldValue<DateTime>(index));
 
     public virtual object ReadTimeOnly(DbDataReader reader, int index) =>
-      reader.GetFieldValue<TimeOnly>(index);
+      TimeOnly.FromTimeSpan(reader.GetFieldValue<TimeSpan>(index));
 #endif
 
     public virtual object ReadDateTimeOffset(DbDataReader reader, int index) =>