Only install the latest compatible version of timescaledb (#1046)

Co-authored-by: Polina Bungina <27892524+hughcapet@users.noreply.github.com>

postgres-appliance/Dockerfile

@@ -1,5 +1,6 @@
 ARG BASE_IMAGE=ubuntu:22.04
 ARG PGVERSION=17
+ARG TIMESCALEDB="2.15.3 2.17.2"
 ARG DEMO=false
 ARG COMPRESS=false
 ARG ADDITIONAL_LOCALES=
@@ -43,6 +44,7 @@ COPY build_scripts/base.sh /builddeps/
 COPY --from=dependencies-builder /builddeps/*.deb /builddeps/
 
 ARG PGVERSION
+ARG TIMESCALEDB
 ARG TIMESCALEDB_APACHE_ONLY=true
 ARG TIMESCALEDB_TOOLKIT=true
 ARG COMPRESS

postgres-appliance/build_scripts/base.sh

@@ -124,6 +124,19 @@ for version in $DEB_PG_SUPPORTED_VERSIONS; do
         "postgresql-${version}-pg-stat-kcache" \
         "${EXTRAS[@]}"
 
+    # Clean up timescaledb versions except the highest compatible version
+    exclude_patterns=()
+    exclude_patterns_tsl=()
+    for ts_version in ${TIMESCALEDB}; do
+        exclude_patterns+=(! -name timescaledb-"${ts_version}".so)
+        exclude_patterns_tsl+=(! -name timescaledb-tsl-"${ts_version}".so)
+    done
+    find /usr/lib/postgresql/"${version}"/lib/ -name 'timescaledb-2.*.so' "${exclude_patterns[@]}" -delete;
+
+    if [ "${TIMESCALEDB_APACHE_ONLY}" != "true" ]; then
+        find /usr/lib/postgresql/"${version}"/lib/ -name 'timescaledb-tsl-2.*.so' "${exclude_patterns_tsl[@]}" -delete;
+    fi
+
     # Install 3rd party stuff
 
     if [ "${TIMESCALEDB_APACHE_ONLY}" != "true" ] && [ "${TIMESCALEDB_TOOLKIT}" = "true" ]; then