db matrix

.github/workflows/workflow.yml

@@ -13,6 +13,7 @@ jobs:
     strategy:
       matrix:
         python-version: [ 3.8, 3.9, '3.10', 3.11, 3.12, 3.13 ]
+        db: [ sqlite, mysql, postgres ]
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python
@@ -29,3 +30,6 @@ jobs:
         pip install --upgrade pip
         pip install .[tests]
         ./misc/test.sh
+      with:
+        env:
+          DB: ${{ matrix.db }}