/**
  * Quotes table names with the quote character suitable for the DB being used
  *
  * @param string $from_table List of tables to be selected from DB
  * @return string Quoted list of tables to be selected from DB
  */
 public function quoteFromTables($from_table)
 {
     if ($from_table === '') {
         return '';
     }
     if ($this->runningNative()) {
         return $from_table;
     }
     $from_table = $this->SQLparser->parseFromTables($from_table);
     $from_table = $this->_quoteFromTables($from_table);
     return $this->SQLparser->compileFromTables($from_table);
 }