Return back backup array

.SRCINFO

@@ -1,7 +1,7 @@
 pkgbase = clickhouse
 	pkgdesc = An open-source column-oriented database management system that allows generating analytical data reports in real time
 	pkgver = 20.6.3.28
-	pkgrel = 1
+	pkgrel = 2
 	url = https://clickhouse.tech/
 	install = clickhouse.install
 	arch = x86_64
@@ -11,6 +11,9 @@ pkgbase = clickhouse
 	noextract = clickhouse-common-static_20.6.3.28_amd64.deb
 	noextract = clickhouse-client_20.6.3.28_all.deb
 	noextract = clickhouse-server_20.6.3.28_all.deb
+	backup = etc/clickhouse-client/config.xml
+	backup = etc/clickhouse-server/config.xml
+	backup = etc/clickhouse-server/users.xml
 	source = https://repo.clickhouse.tech/deb/stable/main/clickhouse-common-static_20.6.3.28_amd64.deb
 	source = https://repo.clickhouse.tech/deb/stable/main/clickhouse-client_20.6.3.28_all.deb
 	source = https://repo.clickhouse.tech/deb/stable/main/clickhouse-server_20.6.3.28_all.deb

PKGBUILD

@@ -1,11 +1,9 @@
 # Maintainer: Dmitry Bilunov <kmeaw@yandex-team.ru>
 # Maintainer: Mikhail f. Shiryaev <mr dot felixoid at gmail dot com>
 
-#pkgbase=clickhouse
-#pkgname=(clickhouse clickhouse-dbg)
 pkgname=clickhouse
 pkgver=20.6.3.28
-pkgrel=1
+pkgrel=2
 pkgdesc='An open-source column-oriented database management system that allows generating analytical data reports in real time'
 arch=('x86_64')
 url='https://clickhouse.tech/'
@@ -27,6 +25,11 @@ sha256sums=(
   17271d0314d22c3d5b2a7caee7ff4d00ca5f9ffa4eb6ebe29084e447d36ec52d
 )
 install=$pkgname.install
+backup=(
+  'etc/clickhouse-client/config.xml'
+  'etc/clickhouse-server/config.xml'
+  'etc/clickhouse-server/users.xml'
+)
 
 package() {
   for deb in "${noextract[@]}"; do