42d41
<     private readonly Dictionary<EdmMember, SqlFragment> _memberValues = new Dictionary<EdmMember, SqlFragment>();
84,93c83,84
<       //where.Append(" row_count() > 0 and ");
<       //where.Append(((DbUpdateCommandTree)tree).Predicate.Accept(this));
<       
<       where.Append(" row_count() > 0");
<       EntitySetBase table = ((DbScanExpression)tree.Target.Expression).Target;
<       foreach(EdmMember keyMember in table.ElementType.KeyMembers) {
<           SqlFragment value = _memberValues[keyMember];          
<           where.Append(String.Format(" AND `{0}`=", keyMember));
<           where.Append(value);
<       }      
---
>       where.Append(" row_count() > 0 and ");
>       where.Append( ((DbUpdateCommandTree)tree).Predicate.Accept(this) );
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<         _memberValues.Add(_columnsVisited.Pop(), f.Right);        
---
>         _columnsVisited.Pop();