title: SQL only_full_group_by ISSUE in php codeigniter
body: <p>Here is query</p>
  
  <pre><code>SELECT 
  ap_sell_investment.sell_per_coin,ap_sell_investment.sell_id, ap_sell_investment.sell_no_of_coins, ap_investment.investment_id,ap_investment.currency_price_input, ap_coin_currency_mst.coin_currency_price ,ap_coin_currency_mst.symbol, ap_investment.write_note, ap_investment.pstatus, ap_investment.coin_currency_id 
  FROM 
  ap_sell_investment 
  INNER JOIN ap_investment 
  ON ap_investment.coin_currency_id = ap_sell_investment.coin_currency_id 
  INNER JOIN ap_coin_currency_mst 
  ON ap_coin_currency_mst.coin_currency_id = ap_investment.coin_currency_id 
  WHERE ap_investment.status=2 
  GROUP BY ap_sell_investment.sell_id
  </code></pre>
  
  <p>I got this error</p>
  
  <blockquote>
    <p>Expression #4 of SELECT list is not in GROUP BY clause and contains
    nonaggregated column 'fl_coinbase_new.ap_investment.investment_id'
    which is not functionally dependent on columns in GROUP BY clause;
    this is incompatible with sql_mode=only_full_group</p>
  </blockquote>