power: Velox and Presto have value mismatch

[peterenescu]

Description

Velox and Presto value mismatch for function power.

Error Reproduction

Velox

presto:di> select power(c0,c1) from (values (11,62)) t(c0, c1);
        _col0         
----------------------
 3.684227838451159E64

Presto

presto> select power(c0,c1) from (values (11,62)) t(c0, c1);
         _col0         
-----------------------
 3.6842278384511587E64 

[pedroerp]

is this just float/double precision issue? I know we have a special way of comparing doubles that adds a small delta to go around these problems.

Cc: @Yuhta @kagamiori