Add_number_tnumber Add_tnumber_number Add_tnumber_tnumber Div_number_tnumber Div_tnumber_number Div_tnumber_tnumber Mult_number_tnumber Mult_tnumber_number Mult_tnumber_tnumber Sub_number_tnumber Sub_tnumber_number Sub_tnumber_tnumber Tfloat_degrees Tfloat_derivative Tfloat_radians Tfloat_round Tnumber_abs

Tfloat_derivative() PGDLLEXPORT Datum Tfloat_derivative ( PG_FUNCTION_ARGS  ) Return the derivative of a temporal number. SQL Function: derivative() SQL Operator: