From f1b77fbbdadff286177426bf46592013dcb40168 Mon Sep 17 00:00:00 2001
From: Noel Kwan <noelkwan1998@gmail.com>
Date: Thu, 24 Oct 2024 11:10:29 +0800
Subject: [PATCH] show background_ddl in mv catalog

---
 e2e_test/ddl/drop/drop_creating_mv.slt        | 25 +++++++++++++++++++
 .../rw_catalog/rw_materialized_views.rs       |  3 +++
 2 files changed, 28 insertions(+)

diff --git a/e2e_test/ddl/drop/drop_creating_mv.slt b/e2e_test/ddl/drop/drop_creating_mv.slt
index e9d8423f3cdec..69febfd2936bc 100644
--- a/e2e_test/ddl/drop/drop_creating_mv.slt
+++ b/e2e_test/ddl/drop/drop_creating_mv.slt
@@ -18,6 +18,11 @@ risedev psql -c 'create materialized view m1 as select * from t;' &
 onlyif can-use-recover
 sleep 5s
 
+query I
+select background_ddl from rw_catalog.rw_materialized_views where name='m1';
+----
+f
+
 onlyif can-use-recover
 statement ok
 drop materialized view m1;
@@ -33,6 +38,11 @@ create materialized view m1 as select * from t;
 onlyif can-use-recover
 sleep 5s
 
+query I
+select background_ddl from rw_catalog.rw_materialized_views where name='m1';
+----
+t
+
 onlyif can-use-recover
 statement ok
 drop materialized view m1;
@@ -48,6 +58,11 @@ create materialized view m1 as select * from t;
 onlyif can-use-recover
 sleep 5s
 
+query I
+select background_ddl from rw_catalog.rw_materialized_views where name='m1';
+----
+t
+
 onlyif can-use-recover
 statement ok
 recover;
@@ -55,6 +70,11 @@ recover;
 onlyif can-use-recover
 sleep 10s
 
+query I
+select background_ddl from rw_catalog.rw_materialized_views where name='m1';
+----
+t
+
 onlyif can-use-recover
 statement ok
 drop materialized view m1;
@@ -69,6 +89,11 @@ set background_ddl=false;
 statement ok
 create materialized view m1 as select * from t;
 
+query I
+select background_ddl from rw_catalog.rw_materialized_views where name='m1';
+----
+f
+
 statement ok
 drop materialized view m1;
 
diff --git a/src/frontend/src/catalog/system_catalog/rw_catalog/rw_materialized_views.rs b/src/frontend/src/catalog/system_catalog/rw_catalog/rw_materialized_views.rs
index c593b35b18f87..d45da04d12612 100644
--- a/src/frontend/src/catalog/system_catalog/rw_catalog/rw_materialized_views.rs
+++ b/src/frontend/src/catalog/system_catalog/rw_catalog/rw_materialized_views.rs
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use risingwave_common::catalog::CreateType;
 use risingwave_common::types::{Fields, Timestamptz};
 use risingwave_frontend_macro::system_catalog;
 use risingwave_pb::user::grant_privilege::Object;
@@ -33,6 +34,7 @@ struct RwMaterializedView {
     created_at: Option<Timestamptz>,
     initialized_at_cluster_version: Option<String>,
     created_at_cluster_version: Option<String>,
+    background_ddl: bool,
 }
 
 #[system_catalog(table, "rw_catalog.rw_materialized_views")]
@@ -62,6 +64,7 @@ fn read_rw_materialized_views(reader: &SysCatalogReaderImpl) -> Result<Vec<RwMat
                 created_at: table.created_at_epoch.map(|e| e.as_timestamptz()),
                 initialized_at_cluster_version: table.initialized_at_cluster_version.clone(),
                 created_at_cluster_version: table.created_at_cluster_version.clone(),
+                background_ddl: table.create_type == CreateType::Background,
             })
         })
         .collect())