From 56ec5a25774196473d3773e2a16a7f416b022098 Mon Sep 17 00:00:00 2001
From: Tobias Mayer <tobim@fastmail.fm>
Date: Sun, 29 Mar 2020 18:03:18 +0200
Subject: [PATCH] pythonPackages.pyarrow: fix test

---
 pkgs/development/python-modules/pyarrow/default.nix | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/pyarrow/default.nix b/pkgs/development/python-modules/pyarrow/default.nix
index ab05f49ac38..6d51729e0c3 100644
--- a/pkgs/development/python-modules/pyarrow/default.nix
+++ b/pkgs/development/python-modules/pyarrow/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, python, isPy3k, arrow-cpp, cmake, cython, futures, hypothesis, numpy, pandas, pytest, pytest-lazy-fixture, pkgconfig, setuptools_scm, six }:
+{ lib, fetchpatch, buildPythonPackage, python, isPy3k, arrow-cpp, cmake, cython, futures, hypothesis, numpy, pandas, pytest, pytest-lazy-fixture, pkgconfig, setuptools_scm, six }:
 
 let
   _arrow-cpp = arrow-cpp.override { inherit python; };
@@ -9,6 +9,16 @@ buildPythonPackage rec {
 
   inherit (_arrow-cpp) version src;
 
+  patches = [
+    # Remove when updating pkgs.arrow-cpp to 0.17
+    (fetchpatch {
+      name = "ARROW-8106-fix-conversion-test";
+      url = "https://github.com/apache/arrow/commit/af20bbff30adc560d7e57dd921345d00cc8b870c.patch";
+      sha256 = "0ihpw589vh35va31ajzy5zpx3bqd9gdn3342rghi03r245kch9zd";
+      stripLen = 1;
+    })
+  ];
+
   sourceRoot = "apache-arrow-${version}/python";
 
   nativeBuildInputs = [ cmake cython pkgconfig setuptools_scm ];