anchor.diff:            "SELECT S.* " +
             " FROM " +
             "<%=j_escape_string("   #{ entity.sync.sync_temp_entity.sql.qualified_table_name } AS S ")%>" +
  -          "<%=j_escape_string(" LEFT JOIN #{ entity.sync.sync_temp_entity.sql.qualified_table_name } AS O ON O.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingID).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingID).sql.quoted_column_name } AND O.#{ entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } AND O.SyncTempID != S.SyncTempID ")%>" +
  +          "<%=j_escape_string(" LEFT JOIN #{ entity.sync.sync_temp_entity.sql.qualified_table_name } AS O ON O.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingID).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingID).sql.quoted_column_name } AND O.#{ entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } AND O.#{ entity.sync.sync_temp_entity.attribute_by_name(:SyncTempID).sql.quoted_column_name } != S.#{ entity.sync.sync_temp_entity.attribute_by_name(:SyncTempID).sql.quoted_column_name } ")%>" +
             "<%=j_escape_string(" WHERE O.#{ entity.sync.master_entity.attribute_by_name(:MappingID).sql.quoted_column_name } IS NOT NULL AND S.#{ entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } = ?")%>";
           if ( !verify<%= entity.qualified_name.gsub('.','') %>ViaSql( mappingSourceCode, sql, "MappingID Uniqueness", recorder ) )
           {
  
positive.code:   ref_id = 'R.ID'
  -%>
  <% if a.referenced_entity.name == entity.name -%>
            "<%=j_escape_string(" LEFT JOIN #{ a.referenced_entity.sync.sync_temp_entity.sql.qualified_table_name } AS R ON R.MappingID = S.#{ entity.sync.sync_temp_entity.attribute_by_name("#{a.name}MappingID").sql.quoted_column_name } AND R.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } ")%>" +
  <% elsif a.referenced_entity.abstract? -%>
  <%
    refs = []
    a.referenced_entity.concrete_subtypes.each_with_index do |subtype, index|
      refs << "R#{index}.ID"
  -%>
            "<%=j_escape_string(" LEFT JOIN #{ subtype.sync.master_entity.sql.qualified_table_name } AS R#{ index } ON R#{ index }.MappingID = S.#{ entity.sync.sync_temp_entity.attribute_by_name("#{a.name}MappingID").sql.quoted_column_name } AND R#{ index }.MappingSource = S.MappingSource AND R#{ index }.DeletedAt IS NULL ")%>" +
  <% end
    ref_id = "COALESCE(#{refs.join(',')})"
  -%>
  
  <% else -%>
            "<%=j_escape_string(" LEFT JOIN #{ a.referenced_entity.sync.master_entity.sql.qualified_table_name } AS R ON R.MappingID = S.#{ entity.sync.sync_temp_entity.attribute_by_name("#{a.name}MappingID").sql.quoted_column_name } AND R.MappingSource = S.MappingSource AND R.DeletedAt IS NULL ")%>" +
  <% end -%>
  <% end -%>
            "<%=j_escape_string(" JOIN #{ entity.sync.master_entity.sql.qualified_table_name } AS M ON M.DeletedAt IS NULL AND M.MappingKey = S.MappingKey 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 } <> #{ a.reference? ? ref_id : "S.#{entity.sync.sync_temp_entity.attribute_by_name(a.reference? ? "#{a.name}MappingID" : a.name).sql.quoted_column_name}" } ")%>" +
            "<%=j_escape_string(" 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 immutable attribute <%= a.qualified_name %>", recorder ) )
          {
  
negative.code:   ref_id = 'R.ID'
  -%>
  <% if a.referenced_entity.name == entity.name -%>
            "<%=j_escape_string("LEFT JOIN #{ a.referenced_entity.sync.sync_temp_entity.sql.qualified_table_name } AS R ON R.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingID).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name("#{a.name}MappingID").sql.quoted_column_name } AND R.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } ")%>" +
  <% elsif a.referenced_entity.abstract? -%>
  <%
    refs = []
    a.referenced_entity.concrete_subtypes.each_with_index do |subtype, index|
      refs << "R#{index}"
  -%>
            "<%=j_escape_string(" LEFT JOIN #{ subtype.sync.master_entity.sql.qualified_table_name } AS R#{ index } ON R#{ index }.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingID).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name("#{a.name}MappingID").sql.quoted_column_name } AND R#{ index }.#{ entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } = S.#{ entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } AND R#{ index }.#{ entity.sync.master_entity.attribute_by_name(:DeletedAt).sql.quoted_column_name } IS NULL ")%>" +
  <% end
    ref_id = "COALESCE(#{refs.join(',')})"
  -%>
  
  <% else -%>
            "<%=j_escape_string("LEFT JOIN #{ a.referenced_entity.sync.master_entity.sql.qualified_table_name } AS R ON R.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingID).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name("#{a.name}MappingID").sql.quoted_column_name } AND R.#{ entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } = S.#{ entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } AND R.#{ entity.sync.master_entity.attribute_by_name(:DeletedAt).sql.quoted_column_name } IS NULL ")%>" +
  <% end -%>
  <% end -%>
            "<%=j_escape_string("JOIN #{ entity.sync.master_entity.sql.qualified_table_name } AS M ON M.#{ entity.sync.master_entity.attribute_by_name(:DeletedAt).sql.quoted_column_name } IS NULL AND M.#{ entity.sync.master_entity.attribute_by_name(:MappingKey).sql.quoted_column_name } = S.#{ entity.sync.master_entity.attribute_by_name(:MappingKey).sql.quoted_column_name } AND M.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingID).sql.quoted_column_name } = S.#{ entity.sync.sync_temp_entity.attribute_by_name(:MappingID).sql.quoted_column_name } AND M.#{ entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } = S.#{ entity.sync.master_entity.attribute_by_name(:MappingSource).sql.quoted_column_name } 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 } <> #{ a.reference? ? ref_id : "S.#{entity.sync.sync_temp_entity.attribute_by_name(a.reference? ? "#{a.name}MappingID" : a.name).sql.quoted_column_name}" } ")%>" +
            "<%=j_escape_string("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 ) )
          {
  