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Returns the population standard deviation. Alias for STDDEV_POP.

func.stddev(get_column(table, 'score'))
func.stddev(get_column(table, 'score'))
┌───────┐
15.32
└───────┘
STDDEV(<score>)
SELECT STDDEV(score) FROM test_results;
┌───────┐
15.32
└───────┘