anchor.diff:  %% that uses several clauses.
   -spec adhoc_select([binary() | string()], binary() | string(), atom() | tuple(), [] | [atom() | tuple()]) -> sqerl_results().
   adhoc_select(Columns, Table, Where, Clauses) ->
  -    {SQL, Values} = sqerl_adhoc:select(Columns, Table, 
  +    {SQL, Values} = sqerl_adhoc:select(Columns, Table,
                         [{where, Where}|Clauses], param_style()),
       execute(SQL, Values).
   
  
positive.code:     SQL = sqerl_adhoc:insert(Table, Columns, length(RowsValues), param_style()),
      insert_oneshot(Cn, SQL, RowsValues).
  
  %% @doc Insert all rows at once using given 
  %% prepared statement or SQL.
  %% Returns {ok, InsertCount}.
  insert_oneshot(_Cn, _StmtOrSQL, []) ->
  
negative.code: 
  -spec parse_error(pgsql,
                    'no_connections' |
                    {'error', {'error', _, _, _, _}}) -> sqerl_error().
  parse_error(_DbType, no_connections) ->
      {error, no_connections};
  parse_error(_DbType, {error, Reason} = Error) when is_atom(Reason) ->
      Error;
  parse_error(pgsql, {error,               % error from sqerl
                      {error,              % error record marker from epgsql
                       _Severity,          % Severity
  