add long running test in ci

.github/workflows/long_running.yml

@@ -0,0 +1,26 @@
+name: Rust
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  CARGO_TERM_COLOR: always
+  NUM_FUNCTIONAL_TEST_ITERATIONS: 2000000
+
+jobs:
+  functional_test_unsorted:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Run indexing_unsorted
+      run: cargo test indexing_unsorted -- --ignored
+  functional_test_sorted:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Run indexing_sorted
+      run: cargo test indexing_sorted -- --ignored
+

src/functional_test.rs

@@ -123,7 +123,7 @@ fn test_functional_indexing_sorted() -> crate::Result<()> {
 
 #[test]
 #[ignore]
-fn test_functional_indexing() -> crate::Result<()> {
+fn test_functional_indexing_unsorted() -> crate::Result<()> {
     let mut schema_builder = Schema::builder();
 
     let id_field = schema_builder.add_u64_field("id", INDEXED);