remove join iterator (#166)

* remove join iterator

* remove useless code

Author: Pietro Vertechi

src/StructArrays.jl

@@ -11,7 +11,6 @@ include("structarray.jl")
 include("utils.jl")
 include("collect.jl")
 include("sort.jl")
-include("groupjoin.jl")
 include("lazy.jl")
 include("tables.jl")
 

src/groupjoin.jl

@@ -95,13 +95,6 @@ end
     @test StructArrays.roweq(strs, 1, 2)
     @test !StructArrays.roweq(strs, 1, 3)
     @test !StructArrays.roweq(strs, 2, 3)
-
-    a = ["a", "c", "z", "a"]
-    b = PooledArrays.PooledArray(["p", "y", "a", "x"])
-    t = StructArray((a, b))
-    @test StructArrays.rowcmp(s, 4, t, 4) == 0
-    @test StructArrays.rowcmp(s, 1, t, 1) == 1
-    @test StructArrays.rowcmp(s, 2, t, 3) == -1
 end
 
 @testset "permute" begin
@@ -174,19 +167,6 @@ end
     @test u == [1, 2, 3]
 end
 
-@testset "groupjoin" begin
-    a = [1, 2, 1, 1, 0, 9, -100]
-    b = [-2, 12, 1, 1, 0, 11, 9]
-    itr = StructArrays.GroupJoinPerm(a, b)
-    @test Base.IteratorSize(itr) == Base.SizeUnknown()
-    @test Base.IteratorEltype(itr) == Base.HasEltype()
-    @test eltype(itr) == Tuple{UnitRange{Int}, UnitRange{Int}}
-    s = StructArray(itr)
-    as, bs = fieldarrays(s)
-    @test as == [1:1, 1:0, 2:2, 3:5, 6:6, 7:7, 1:0, 1:0]
-    @test bs == [1:0, 1:1, 2:2, 3:4, 1:0, 5:5, 6:6, 7:7]
-end
-
 @testset "similar" begin
     t = StructArray(a = rand(10), b = rand(Bool, 10))
     s = similar(t)