anchor.diff:          }
         }
   <% end -%>
  -<% entity.sql.constraints.select{|constraint| !(constraint.sql =~ /ToDate/) }.each do |constraint| %>
  +<% entity.sql.constraints.select{|constraint| !(constraint.sql =~ /\[CreatedAt\]/ && constraint.sql =~ /\[DeletedAt\]/) }.each do |constraint| %>
         {
           final String sql =
             "SELECT S.* " +
             " FROM " +
             "   <%= entity.sync.sync_temp_entity.sql.qualified_table_name %> AS S " +
  -          "JOIN ( SELECT SyncTempID FROM <%= entity.sync.sync_temp_entity.sql.qualified_table_name %> WHERE NOT (<%= constraint.sql.gsub("\n",' ').gsub('  ',' ') %>) ) J ON J.SyncTempID = S.SyncTempID " +
  +          "JOIN ( SELECT SyncTempID FROM <%= entity.sync.sync_temp_entity.sql.qualified_table_name %> WHERE NOT (<%=
  +  sql = constraint.sql.gsub("\n",' ').gsub('  ',' ')
  +  entity.attributes.select{|a| !a.primary_key? && a.sql? && a.name.to_s != 'CreatedAt' && a.name.to_s != 'DeletedAt' }.each do |a|
  +    sql = sql.gsub(/#{Regexp.escape(a.sql.quoted_column_name)}/, entity.sync.sync_temp_entity.attribute_by_name(a.reference? ? "#{a.name}MappingID" : a.name).sql.quoted_column_name )
  +  end
  +  sql
  +-%>) ) J ON J.SyncTempID = S.SyncTempID " +
             "WHERE S.<%= entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name %> = ?";
           if ( !verify<%= entity.qualified_name.gsub('.','') %>ViaSql( mappingSourceCode, sql, "Attempted to violate constraint <%= constraint.qualified_constraint_name %>", recorder ) )
           {
  
positive.code:           "SELECT S.* " +
            " FROM " +
            "   <%= entity.sync.sync_temp_entity.sql.qualified_table_name %> AS S " +
            "JOIN <%= entity.sync.master_entity.sql.qualified_table_name %> AS M ON M.DeletedAt IS NULL AND M.MappingID = S.MappingID AND M.MappingSource = S.MappingSource AND M.<%= entity.sync.master_entity.attribute_by_name(a.name).sql.quoted_column_name %> IS NOT NULL AND M.<%= entity.sync.master_entity.attribute_by_name(a.name).sql.quoted_column_name %> <> S.<%= entity.sync.sync_temp_entity.attribute_by_name(a.reference? ? "#{a.name}MappingID" : a.name).sql.quoted_column_name %> " +
            "WHERE S.<%= entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name %> = ?";
          if ( !verify<%= entity.qualified_name.gsub('.','') %>ViaSql( mappingSourceCode, sql, "Attempted to modify set once attribute <%= a.qualified_name %>", recorder ) )
          {
  
negative.code:           "  <%= entity.sync.sync_temp_entity.sql.qualified_table_name %> AS S " +
            "JOIN ( SELECT <%= column_names.join(',') %> FROM <%= entity.sync.sync_temp_entity.sql.qualified_table_name %> GROUP BY <%= column_names.join(',') %> HAVING COUNT(*) > 1 ) J ON <%= column_names.collect{|c| "J.#{c} = S.#{c}"}.join(' AND ') %> " +
            "WHERE S.<%= entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name %> = ?";
          if ( !verify<%= entity.qualified_name.gsub('.','') %>ViaSql( mappingSourceCode, sql, "Found duplicate rows for <%= entity.qualified_name.gsub('.','') %> that violate uniqueness across <%= index.attribute_names.join(',') %> defined by index <%= index.index_name %>", recorder ) )
          {
            validationFailed = true;
          }
  