From 5f0b845d6711e967afeb2e4c5407247f1d23bd43 Mon Sep 17 00:00:00 2001
From: Stan Hu <stanhu@gmail.com>
Date: Thu, 10 Feb 2022 22:05:00 -0800
Subject: [PATCH] Purge system postgresql-client

To avoid shipping mixed versions of the PostgreSQL client, remove
the system client before installing the PGDG version.
---
 scripts/install-postgresql | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/install-postgresql b/scripts/install-postgresql
index 5b2040f..9c75107 100755
--- a/scripts/install-postgresql
+++ b/scripts/install-postgresql
@@ -6,6 +6,9 @@ POSTGRES_VERSION=${1:-12}
 DEBIAN_VERSION=${2:-buster}
 export DEBIAN_FRONTEND=noninteractive
 
+# Uninstall the system client so that we don't have multiple versions
+apt purge -y postgresql-client postgresql-client-common
+
 curl -sS -L https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
 echo "deb http://apt.postgresql.org/pub/repos/apt/ ${DEBIAN_VERSION}-pgdg main" | tee /etc/apt/sources.list.d/postgresql.list