From 8ae1d8bd4e9d4a548c833305dee59060ddc3ba07 Mon Sep 17 00:00:00 2001
From: Andreas Motl <andreas.motl@crate.io>
Date: Sat, 15 Nov 2025 18:28:36 +0100
Subject: [PATCH 1/5] Elixir: Update to Erlang/OTP 28 and Elixir 1.19

---
 .github/workflows/lang-elixir-postgrex.yml | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/lang-elixir-postgrex.yml b/.github/workflows/lang-elixir-postgrex.yml
index 858f145f..50aae196 100644
--- a/.github/workflows/lang-elixir-postgrex.yml
+++ b/.github/workflows/lang-elixir-postgrex.yml
@@ -39,8 +39,16 @@ jobs:
       matrix:
         os: [ 'ubuntu-latest' ]
         cratedb-version: [ 'nightly' ]
-        otp-version: ['26', '27']
-        elixir-version: ['1.17', '1.18']
+        otp-version: [
+          '26',
+          '27',
+          '28',
+        ]
+        elixir-version: [
+          '1.17',
+          '1.18',
+          '1.19',
+        ]
 
     services:
       cratedb:

From 1c58dc6f1c997816d5afadc5f5682ae5a1a82003 Mon Sep 17 00:00:00 2001
From: Andreas Motl <andreas.motl@crate.io>
Date: Sat, 15 Nov 2025 18:55:00 +0100
Subject: [PATCH 2/5] Elixir: Improve test stability

By using `ORDER BY VECTOR_SIMILARITY()` within the vector storage
integration test, we hope for a better sorting stability, i.e.
less flaky outcomes.
---
 by-language/elixir-postgrex/test/basic_test.exs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/by-language/elixir-postgrex/test/basic_test.exs b/by-language/elixir-postgrex/test/basic_test.exs
index d2472df1..4a4d3434 100644
--- a/by-language/elixir-postgrex/test/basic_test.exs
+++ b/by-language/elixir-postgrex/test/basic_test.exs
@@ -90,9 +90,10 @@ defmodule CrateDBTest do
         SELECT id
         FROM testdrive.elixir
         WHERE knn_match(data, ?, 2)
-        ORDER BY id;
-        ", [[0.1, 0.2, 0.3]])
-    assert [~c"*", ~c"+", ~c",", ~c"-"] == result.rows
+        ORDER BY VECTOR_SIMILARITY(data, ?) DESC
+        LIMIT 3;
+        ", [[0.1, 0.2, 0.3], [0.1, 0.2, 0.3]])
+    assert [[42], [44], [45]] == result.rows
 
   end
 

From 16ff4316c7a7c8dbe35e0434f9337fd507aa5975 Mon Sep 17 00:00:00 2001
From: Andreas Motl <andreas.motl@crate.io>
Date: Sat, 15 Nov 2025 19:00:09 +0100
Subject: [PATCH 3/5] Elixir: Adjust version pinning and CI configuration

- Elixir 1.17 is no longer supported on Erlang/OTP 28.
- Relax Postgrex dependency to 0.21.
---
 .github/workflows/lang-elixir-postgrex.yml | 3 +++
 by-language/elixir-postgrex/mix.exs        | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/lang-elixir-postgrex.yml b/.github/workflows/lang-elixir-postgrex.yml
index 50aae196..1f4a3003 100644
--- a/.github/workflows/lang-elixir-postgrex.yml
+++ b/.github/workflows/lang-elixir-postgrex.yml
@@ -49,6 +49,9 @@ jobs:
           '1.18',
           '1.19',
         ]
+        exclude:
+          - otp-version: '28'
+            elixir-version: '1.17'
 
     services:
       cratedb:
diff --git a/by-language/elixir-postgrex/mix.exs b/by-language/elixir-postgrex/mix.exs
index 6a820754..e9236f02 100644
--- a/by-language/elixir-postgrex/mix.exs
+++ b/by-language/elixir-postgrex/mix.exs
@@ -17,7 +17,7 @@ defmodule CrateDBExample.MixProject do
   defp deps() do
     [
       {:jason, "~> 1.4"},
-      {:postgrex, "~> 0.21.0"},
+      {:postgrex, "~> 0.21"},
     ]
   end
 

From c05670f8d95241e3978a7395b766f4cca51d0d28 Mon Sep 17 00:00:00 2001
From: Andreas Motl <andreas.motl@crate.io>
Date: Sat, 15 Nov 2025 19:15:29 +0100
Subject: [PATCH 4/5] Elixir: Stop testing on Erlang/OTP 26 and Elixir 1.17

---
 .github/workflows/lang-elixir-postgrex.yml | 2 --
 1 file changed, 2 deletions(-)

diff --git a/.github/workflows/lang-elixir-postgrex.yml b/.github/workflows/lang-elixir-postgrex.yml
index 1f4a3003..febd0c58 100644
--- a/.github/workflows/lang-elixir-postgrex.yml
+++ b/.github/workflows/lang-elixir-postgrex.yml
@@ -40,12 +40,10 @@ jobs:
         os: [ 'ubuntu-latest' ]
         cratedb-version: [ 'nightly' ]
         otp-version: [
-          '26',
           '27',
           '28',
         ]
         elixir-version: [
-          '1.17',
           '1.18',
           '1.19',
         ]

From 7cea6ad79ad3de0d497732caed7e356944441e9e Mon Sep 17 00:00:00 2001
From: Andreas Motl <andreas.motl@crate.io>
Date: Sat, 15 Nov 2025 22:55:46 +0100
Subject: [PATCH 5/5] Elixir: Remove ineffective exclusion rule on CI,
 suggested by CodeRabbit

---
 .github/workflows/lang-elixir-postgrex.yml | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/.github/workflows/lang-elixir-postgrex.yml b/.github/workflows/lang-elixir-postgrex.yml
index febd0c58..7fe884d4 100644
--- a/.github/workflows/lang-elixir-postgrex.yml
+++ b/.github/workflows/lang-elixir-postgrex.yml
@@ -47,9 +47,6 @@ jobs:
           '1.18',
           '1.19',
         ]
-        exclude:
-          - otp-version: '28'
-            elixir-version: '1.17'
 
     services:
       cratedb: