From 657d0a6afdacb357a43e34e76a11b8b824e18782 Mon Sep 17 00:00:00 2001
From: Budiman Jojo <budimanjojo@gmail.com>
Date: Sat, 23 Dec 2023 14:00:23 +0700
Subject: [PATCH] docs: add upgrade notice

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index e9f6a33..b9d1deb 100644
--- a/README.md
+++ b/README.md
@@ -20,3 +20,10 @@ spec:
         parameters:
           shared_preload_libraries: "vectors.so"
 ```
+
+> :warning: If you want to do a major Posgres version upgrade like described in the [official doc](https://access.crunchydata.com/documentation/postgres-operator/latest/guides/major-postgres-version-upgrade), make sure you do the following steps or the upgrade will fail:
+
+1. Connect to the database where you have enabled the `vectors` extension and disable it with `DROP EXTENSION vectors;`.
+2. Remove the `dynamicConfiguration` block you added to `PostgresCluster` from above.
+3. Follow the upgrade instruction from the official doc.
+4. Add back the removed block and enable the extension in the database again with `CREATE EXTENSION vectors;`