Improved Pg test matrix (#616)

* Add postgres 10/11 to test  matrix
* Add docker-compose file fo running multiple postgres versions locally
* Fix client test for pg 10, modify function details to include specific fields
* Try to install latest postgres client
* Add concurrency setting

.github/workflows/checks.yml

@@ -8,6 +8,10 @@ env:
   GO_VERSION: 1.19
   CGO_ENABLED: 0
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   tests:
     name: tests
@@ -15,7 +19,7 @@ jobs:
     timeout-minutes: 30
     strategy:
       matrix:
-        pg_version: [12, 13, 14]
+        pg_version: [9.6, 10, 11, 12, 13, 14, 15]
 
     services:
       postgres:
@@ -32,6 +36,13 @@ jobs:
             --health-timeout 5s
             --health-retries 5
     steps:
+      - name: Install latest Postgres client
+        run: |
+          sudo rm -f /etc/apt/sources.list.d/pgdg.list
+          curl --silent https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add
+          echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" | sudo tee /etc/apt/sources.list.d/pgdg.list
+          sudo apt-get update && sudo apt-get install -y postgresql-client-15
+
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0