PostgreSQL/Data Type/Float

select -16.63 AS negative_float

postgres=# select -16.63 AS negative_float;
 negative_float
----------------
         -16.63
(1 row)

Valid floating-point values

postgres=# -- Valid floating-point values
postgres=#
postgres=# SELECT .04 AS small_float;
 small_float
-------------
        0.04
(1 row)