From b8bcc00431640ac5e750365c2285edc16e56af45 Mon Sep 17 00:00:00 2001
From: Xiangyan Sun <wishstudio@gmail.com>
Date: Sat, 18 Apr 2026 07:47:56 -0700
Subject: [PATCH 1/2] postgresqlPackages.apache_datasketches: fix build with
 gcc15

---
 .../sql/postgresql/ext/apache_datasketches.nix  | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/pkgs/servers/sql/postgresql/ext/apache_datasketches.nix b/pkgs/servers/sql/postgresql/ext/apache_datasketches.nix
index 43884c22a13a..a95bef28817c 100644
--- a/pkgs/servers/sql/postgresql/ext/apache_datasketches.nix
+++ b/pkgs/servers/sql/postgresql/ext/apache_datasketches.nix
@@ -1,6 +1,7 @@
 {
   boost186,
   fetchFromGitHub,
+  fetchpatch,
   lib,
   postgresql,
   postgresqlBuildExtension,
@@ -41,10 +42,18 @@ postgresqlBuildExtension (finalAttrs: {
   # fails to build with boost 1.87
   buildInputs = [ boost186 ];
 
-  patchPhase = ''
-    runHook prePatch
-    cp -r ../${cpp_src.name} .
-    runHook postPatch
+  patches = [
+    # https://github.com/apache/datasketches-cpp/pull/500
+    (fetchpatch {
+      url = "https://github.com/apache/datasketches-cpp/commit/639134f6e88483bd1bfca451cf09d243ade9bdd4.patch";
+      hash = "sha256-6SYKy3NycYABnUCuLUXQz+mTx4VaeWMlHnJ6aM+sNt4=";
+      stripLen = 1;
+      extraPrefix = "datasketches-cpp/";
+    })
+  ];
+
+  prePatch = ''
+    cp --no-preserve=mode -r ../${cpp_src.name} .
   '';
 
   enableUpdateScript = false;

From 51be85b9f9a4cf7034ff6a6e190d10c6752b962f Mon Sep 17 00:00:00 2001
From: Xiangyan Sun <wishstudio@gmail.com>
Date: Sat, 18 Apr 2026 07:48:08 -0700
Subject: [PATCH 2/2] postgresqlPackages.apache_datasketches: datasketches-cpp:
 5.0.2 -> 5.2.0

---
 pkgs/servers/sql/postgresql/ext/apache_datasketches.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/servers/sql/postgresql/ext/apache_datasketches.nix b/pkgs/servers/sql/postgresql/ext/apache_datasketches.nix
index a95bef28817c..d215a5467bcf 100644
--- a/pkgs/servers/sql/postgresql/ext/apache_datasketches.nix
+++ b/pkgs/servers/sql/postgresql/ext/apache_datasketches.nix
@@ -23,8 +23,8 @@ let
     name = "datasketches-cpp";
     owner = "apache";
     repo = "datasketches-cpp";
-    tag = "5.0.2";
-    hash = "sha256-yGk1OckYipAgLTQK6w6p6EdHMxBIQSjPV/MMND3cDks=";
+    tag = "5.2.0";
+    hash = "sha256-h4+cln01jqLV0EpIqScpCyw8jxZgoVtdfBEjdvyUuVk=";
   };
 in