From 2107818e4a480c058e517a558b71a24678785555 Mon Sep 17 00:00:00 2001
From: Milan Bouchet-Valat <nalimilan@club.fr>
Date: Thu, 5 Feb 2026 10:16:54 +0100
Subject: [PATCH] Fix `ToArrow` with non-one-based indices

This generates errors with `CategoricalArray` due to its internal
`CategoricalRefPool` type.

Also drop `eltype`, which isn't needed as there is an `AbstractArray` fallback.
---
 src/ArrowTypes/src/ArrowTypes.jl | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/ArrowTypes/src/ArrowTypes.jl b/src/ArrowTypes/src/ArrowTypes.jl
index fe2223f..50f80ca 100644
--- a/src/ArrowTypes/src/ArrowTypes.jl
+++ b/src/ArrowTypes/src/ArrowTypes.jl
@@ -420,9 +420,10 @@ function ToArrow(x::A) where {A}
     return ToArrow{T,A}(x)
 end
 
-Base.IndexStyle(::Type{<:ToArrow}) = Base.IndexLinear()
-Base.size(x::ToArrow) = (length(x.data),)
-Base.eltype(::Type{TA}) where {T,A,TA<:ToArrow{T,A}} = T
+Base.IndexStyle(::Type{<:ToArrow{<:Any,A}}) where {A} = Base.IndexStyle(A)
+Base.size(x::ToArrow) = size(x.data)
+Base.axes(x::ToArrow) = axes(x.data)
+
 function _convert(::Type{T}, x) where {T}
     if x isa T
         return x