chore: import upstream snapshot with attribution

.github/workflows/ci-compatibility-tests.yaml

@@ -0,0 +1,66 @@
+name: Check Compatibility
+
+on:
+  pull_request:
+    branches: [ main ]
+    paths:
+      - 'go/**'
+      - 'core/**'
+      - 'server/**'
+      - 'integration-tests/**'
+
+concurrency:
+  group: ci-compatibility-tests-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Compatibility Test
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+        id: go
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ^16
+
+      - name: Build SQL Syntax
+        run: ./build.sh
+        working-directory: ./postgres/parser
+        shell: bash
+
+      - name: Create CI Bin
+        run: |
+          mkdir -p ./.ci_bin
+          echo "$(pwd)/.ci_bin" >> $GITHUB_PATH
+
+      - name: Install Bats
+        run: |
+          npm i bats
+          echo "$(pwd)/node_modules/.bin" >> $GITHUB_PATH
+        working-directory: ./.ci_bin
+
+      - name: Install DoltgreSQL
+        run: |
+          go build -mod=readonly -o .ci_bin/doltgres ./cmd/doltgres
+
+      - name: Install PSQL
+        run: |
+          sudo sh -c 'echo "deb https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
+          wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
+          sudo apt-get update
+          sudo apt-get install --yes --no-install-recommends postgresql-client-15
+
+      - name: Make scripts executable
+        run: chmod +x runner.sh test_files/setup_repo.sh
+        working-directory: ./integration-tests/compatibility
+
+      - name: Run compatibility tests
+        run: ./runner.sh
+        working-directory: ./integration-tests/compatibility