stddev_samp ( numeric_type ) → double precision for real or double precision, otherwise numericComputes the sample standard deviation of the input values.
Functions / Aggregate Functions
stddev_samp
Read the PG 18 manualComputes the sample standard deviation of the input values.
Reading PG 18current·documented in 21 of 27 versions, 8.2 to 20
Signatures & examples
Definition snapshot: b7bd9cda · English manual source