byrow (sum) doesn't work with an array of booleans

[sprmnt21]

In what is sum different from count, in the following example?

julia> ds=Dataset(a=rand(6),a_lim=0.75,b=rand(6),b_lim=0.33,c=rand(6),c_lim=0.25)
6×6 Dataset
 Row │ a         a_lim     b           b_lim     c           c_lim    
     │ identity  identity  identity    identity  identity    identity
     │ Float64?  Float64?  Float64?    Float64?  Float64?    Float64?
─────┼────────────────────────────────────────────────────────────────
   1 │ 0.503853      0.75  0.231149        0.33  0.485659        0.25
   2 │ 0.182826      0.75  0.753766        0.33  0.0138429       0.25
   3 │ 0.349623      0.75  0.109759        0.33  0.00354937      0.25
   4 │ 0.984995      0.75  0.00684881      0.33  0.546865        0.25
   5 │ 0.90003       0.75  0.483134        0.33  0.588903        0.25
   6 │ 0.246932      0.75  0.75743         0.33  0.660182        0.25

julia> modify(compare(ds[!, r"lim"], ds[!, Not(r"lim")], on = 1:3 .=> 1:3, eq = !isless), 1:3=>byrow(count))
6×4 Dataset
 Row │ a_lim=>a  b_lim=>b  c_lim=>c  row_count 
     │ identity  identity  identity  identity
     │ Bool?     Bool?     Bool?     Int32?
─────┼─────────────────────────────────────────
   1 │     true      true     false          2
   2 │     true     false      true          2
   3 │     true      true      true          3
   4 │    false      true     false          1
   5 │    false     false     false          0
   6 │     true     false     false          1

julia> modify(compare(ds[!, r"lim"], ds[!, Not(r"lim")], on = 1:3 .=> 1:3, eq = !isless), 1:3=>byrow(sum))
ERROR: InexactError: Bool(2)
Stacktrace:

while the following are working

count(compare(ds[!, r"lim"], ds[!, Not(r"lim")], on = 1:3 .=> 1:3, eq = !isless)[1,:])
sum(compare(ds[!, r"lim"], ds[!, Not(r"lim")], on = 1:3 .=> 1:3, eq = !isless)[1,:])


# or also

modify(modify(compare(ds[!, r"lim"], ds[!, Not(r"lim")], on = 1:3 .=> 1:3, eq = !isless), 1:3=>x->Int.(x)), 1:3=>byrow(sum))

[sl-solution]

The reason for this is byrow doesn't promote so called small integers to Int or UInt in sum operation. A simple workaround is to use by = x->Int(x) in byrow(sum).

[sl-solution]

I am working on this to fix the issue. Thanks.