Delete row ('1243', '20466') from daily_volatility

ticker_id 1243
day 20466
implied_open 0.3714634840734685
implied_high 0.3746383856467461
implied_low 0.3635262301402747
implied_close 0.3667011317135522
historical_open 0.2174807577695094
historical_high 0.2174807577695094
historical_low 0.2174807577695094
historical_close 0.2174807577695094
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