enable executors in frontend

Signed-off-by: Bugen Zhao <i@bugenzhao.com>

src/batch/executors/src/lib.rs

@@ -12,6 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//! Batch executor implementations.
+//!
+//! To enable executors in this crate, add the following line to your code:
+//!
+//! ```
+//! risingwave_batch_executors::enable!();
+//! ```
+
 #![allow(clippy::derive_partial_eq_without_eq)]
 #![feature(trait_alias)]
 #![feature(exact_size_is_empty)]

src/batch/src/executor/test_utils.rs

@@ -56,7 +56,7 @@ impl MockExecutor {
         Self {
             chunks: VecDeque::new(),
             schema,
-            identity: "MockExecutor".to_string(),
+            identity: "MockExecutor".to_owned(),
         }
     }
 

src/frontend/Cargo.toml

@@ -117,6 +117,7 @@ workspace-hack = { path = "../workspace-hack" }
 [dev-dependencies]
 assert_matches = "1"
 expect-test = "1"
+risingwave_batch_executors = { workspace = true }
 risingwave_expr_impl = { workspace = true }
 tempfile = "3"
 

src/frontend/src/lib.rs

@@ -38,6 +38,8 @@
 
 #[cfg(test)]
 risingwave_expr_impl::enable!();
+#[cfg(test)]
+risingwave_batch_executors::enable!();
 
 #[macro_use]
 mod catalog;