Minor cleanup

Author: quinnj

src/fallbacks.jl

@@ -95,7 +95,7 @@ function buildcolumns(::Nothing, rowitr::T) where {T}
     state = iterate(rowitr)
     state === nothing && return NamedTuple()
     row, st = state
-    names = propertynames(row)
+    names = Tuple(propertynames(row))
     L = Base.IteratorSize(T)
     len = haslength(L) ? length(rowitr) : 0
     sch = Schema(names, nothing)
@@ -112,7 +112,7 @@ function _buildcolumns(rowitr, row, st, sch, L, columns, rownbr, len, updated)
         row, st = state
         columns !== updated[] && return _buildcolumns(rowitr, row, st, sch, L, updated[], rownbr, len, updated)
     end
-    return columns
+    return updated[]
 end
 
 @inline function columns(x::T) where {T}

src/namedtuples.jl

@@ -88,7 +88,7 @@ function columntable(sch::Schema{names, types}, cols) where {names, types}
     end
 end
 # unknown schema case
-columntable(::Nothing, cols) = NamedTuple{propertynames(cols)}(Tuple(getarray(col) for col in eachcolumn(cols)))
+columntable(::Nothing, cols) = NamedTuple{Tuple(propertynames(cols))}(Tuple(getarray(col) for col in eachcolumn(cols)))
 
 function columntable(itr::T) where {T}
     istable(T) || throw(ArgumentError("NamedTuple of AbstractVectors requires a table input"))