fix error (#350)

Author: ericphanson

src/dicts.jl

@@ -126,14 +126,14 @@ end
 
 function subset(x::DictRowTable, inds; viewhint::Union{Bool,Nothing}=nothing, view::Union{Bool,Nothing}=nothing)
     if view !== nothing
-        @warn "`view` keyword argument is deprecated for `Tables.subset`, use `viewhint` instead"
+        @warn "`view` keyword argument is deprecated for `Tables.subset`, use `viewhint` instead" maxlog=10
         viewhint = view
     end
     values = viewhint === true ? Base.view(getfield(x, :values), inds) : getfield(x, :values)[inds]
     if inds isa Integer
         return DictRow(getfield(x, :names), values)
     else
-        values isa AbstractVector || throw(ArgumentError("`Tables.subset`: invalid `inds` argument, expected `RowTable` output, got $(typeof(ret))"))
+        values isa AbstractVector || throw(ArgumentError("`Tables.subset`: invalid `inds` argument, expected `RowTable` output, got $(typeof(values))"))
         return DictRowTable(getfield(x, :names), getfield(x, :types), values)
     end
 end

test/runtests.jl

@@ -153,6 +153,7 @@ end
         @test Tables.subset(nt, 1:2, viewhint=false) == (a=[1,2], b=[4.0, 5.0], c=["7","8"])
         @test Tables.subset(nt, 1:2, viewhint=nothing) == (a=[1,2], b=[4.0, 5.0], c=["7","8"])
         @test_throws ArgumentError Tables.subset(nt, [1:2 1:2])
+        @test_throws ArgumentError Tables.subset(Tables.dictrowtable(nt), [1:2 1:2])
 
         @test Tables.subset(nt, 1, viewhint=true) == (a=1, b=4.0, c="7")
         rs = Tables.subset(nt, 1:2, viewhint=true)
@@ -1038,4 +1039,4 @@ end
     @test DataAPI.ncol(Tables.dictrowtable(NamedTuple[])) == 0
     @test DataAPI.nrow(Tables.dictrowtable([(a=1, b=2), (a=3, b=4), (a=5, b=6)])) == 3
     @test DataAPI.ncol(Tables.dictrowtable([(a=1, b=2), (a=3, b=4), (a=5, b=6)])) == 2
-end
+end