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Returns the sample standard deviation.

func.stddev_samp(get_column(table, 'score'))
func.stddev_samp(get_column(table, 'score'))
┌───────┐
15.89
└───────┘
STDDEV_SAMP(<score>)
SELECT STDDEV_SAMP(score) FROM test_results;
┌───────┐
15.89
└───────┘