Feature flag

Signed-off-by: Moritz Hoffmann <[email protected]>

Author: antiguru

misc/python/materialize/mzcompose/__init__.py

@@ -108,6 +108,7 @@ def get_minimal_system_parameters(
         "enable_refresh_every_mvs": "true",
         "enable_repr_typecheck": "true",
         "enable_cluster_schedule_refresh": "true",
+        "enable_replacement_materialized_views": "true",
         "enable_sql_server_source": "true",
         "enable_statement_lifecycle_logging": "true",
         "enable_compute_temporal_bucketing": "true",

src/sql/src/plan/statement/ddl.rs

@@ -3045,6 +3045,8 @@ pub fn plan_create_replacement_materialized_view(
     scx: &StatementContext,
     mut stmt: CreateReplacementMaterializedViewStatement<Aug>,
 ) -> Result<Plan, PlanError> {
+    scx.require_feature_flag(&vars::ENABLE_REPLACEMENT_MATERIALIZED_VIEWS)?;
+
     let target_item = scx.get_item_by_resolved_name(&stmt.target_name)?;
 
     if target_item.id().is_system() {

src/sql/src/session/vars/definitions.rs

@@ -2224,6 +2224,12 @@ feature_flags!(
         default: false,
         enable_for_item_parsing: false,
     },
+    {
+        name: enable_replacement_materialized_views,
+        desc: "Whether to enable replacement materialized views.",
+        default: false,
+        enable_for_item_parsing: true,
+    },
 );
 
 impl From<&super::SystemVars> for OptimizerFeatures {