should be it

external/duckdb/.github/workflows/Julia.yml

@@ -0,0 +1,115 @@
+name: Julia
+on:
+  workflow_dispatch:
+  repository_dispatch:
+  push:
+    branches-ignore:
+      - 'main'
+      - 'feature'
+      - 'v*.*-*'
+    paths-ignore:
+      - '**.md'
+      - 'examples/**'
+      - 'test/**'
+      - 'tools/**'
+      - '!tools/juliapkg/**'
+      - '.github/patches/duckdb-wasm/**'
+      - '.github/workflows/**'
+      - '!.github/workflows/Julia.yml'
+      - '.github/config/extensions/*.cmake'
+      - '.github/patches/extensions/**/*.patch'
+  merge_group:
+  pull_request:
+    types: [opened, reopened, ready_for_review, converted_to_draft]
+    paths-ignore:
+      - '**.md'
+      - 'examples/**'
+      - 'test/**'
+      - 'tools/**'
+      - '!tools/juliapkg/**'
+      - '.github/patches/duckdb-wasm/**'
+      - '.github/workflows/**'
+      - '!.github/workflows/Julia.yml'
+      - '.github/config/extensions/*.cmake'
+      - '.github/patches/extensions/**/*.patch'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.head_ref || '' }}-${{ github.base_ref || '' }}-${{ github.ref != 'refs/heads/main' || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  check-draft:
+    # We run all other jobs on PRs only if they are not draft PR
+    if: github.event_name != 'pull_request' || github.event.pull_request.draft == false
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Preliminary checks on CI 
+        run: echo "Event name is ${{ github.event_name }}"
+      
+  format_check:
+    name: Julia Format Check
+    needs: check-draft
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: 1.7
+          arch: x64
+
+      - name: Format Check
+        shell: bash
+        run: |
+            cd tools/juliapkg
+            julia -e "import Pkg; Pkg.add(\"JuliaFormatter\")"
+            ./format_check.sh
+
+  main_julia:
+    name: Julia ${{ matrix.version }}
+    needs: check-draft
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - '1.10'
+          - '1'
+        os:
+          - ubuntu-latest
+        arch:
+          - x64
+        isRelease:
+          - ${{ github.ref == 'refs/heads/main' }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: ${{ matrix.version }}
+          arch: ${{ matrix.arch }}
+
+      - name: Setup Ccache
+        uses: hendrikmuhs/ccache-action@main
+        with:
+          key: ${{ github.job }}-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.version }}
+          save: ${{ vars.BRANCHES_TO_BE_CACHED == '' || contains(vars.BRANCHES_TO_BE_CACHED, github.ref) }}
+
+      - name: Build DuckDB
+        shell: bash
+        run: |
+            CORE_EXTENSIONS="tpch;icu" BUILD_JEMALLOC=1 make
+
+      - name: Run Tests
+        shell: bash
+        run: |
+          export JULIA_DUCKDB_LIBRARY="`pwd`/build/release/src/libduckdb.so"
+          export JULIA_NUM_THREADS=2
+          export LD_PRELOAD="/usr/lib/x86_64-linux-gnu/libstdc++.so.6"
+          ls $JULIA_DUCKDB_LIBRARY
+          cd tools/juliapkg
+          julia --project -e "import Pkg; Pkg.test()"