release-21.1: sql: set locality to GLOBAL for materialized views

pkg/ccl/logictestccl/testdata/logic_test/multi_region

@@ -1320,7 +1320,8 @@ statement ok
 CREATE TABLE t (id INT PRIMARY KEY, a INT, b INT);
 INSERT INTO t VALUES (1, 2, 3), (4, 5, 6);
 CREATE SEQUENCE s;
-CREATE VIEW v AS SELECT id, a, b FROM t
+CREATE VIEW v AS SELECT id, a, b FROM t;
+CREATE MATERIALIZED VIEW mat_view AS SELECT id, a, b FROM t
 
 statement ok
 ALTER DATABASE db_with_views_and_sequences SET PRIMARY REGION "ap-southeast-2"
@@ -1332,10 +1333,12 @@ table_name  locality
 t           REGIONAL BY TABLE IN PRIMARY REGION
 s           REGIONAL BY TABLE IN PRIMARY REGION
 v           REGIONAL BY TABLE IN PRIMARY REGION
+mat_view    GLOBAL
 
 statement ok
 CREATE SEQUENCE s2;
-CREATE VIEW v2 AS SELECT id, a, b FROM t
+CREATE VIEW v2 AS SELECT id, a, b FROM t;
+CREATE MATERIALIZED VIEW mat_view2 AS SELECT id, a, b FROM t
 
 query TT colnames
 SELECT table_name, locality FROM [SHOW TABLES]
@@ -1344,8 +1347,24 @@ table_name  locality
 t           REGIONAL BY TABLE IN PRIMARY REGION
 s           REGIONAL BY TABLE IN PRIMARY REGION
 v           REGIONAL BY TABLE IN PRIMARY REGION
+mat_view    GLOBAL
 s2          REGIONAL BY TABLE IN PRIMARY REGION
 v2          REGIONAL BY TABLE IN PRIMARY REGION
+mat_view2   GLOBAL
+
+query TT
+SHOW ZONE CONFIGURATION FROM TABLE mat_view2
+----
+TABLE mat_view2  ALTER TABLE mat_view2 CONFIGURE ZONE USING
+                 range_min_bytes = 134217728,
+                 range_max_bytes = 536870912,
+                 gc.ttlseconds = 90000,
+                 global_reads = true,
+                 num_replicas = 3,
+                 num_voters = 3,
+                 constraints = '{+region=ap-southeast-2: 1}',
+                 voter_constraints = '[+region=ap-southeast-2]',
+                 lease_preferences = '[[+region=ap-southeast-2]]'
 
 statement ok
 ALTER DATABASE db_with_views_and_sequences DROP REGION "ap-southeast-2"
@@ -1357,5 +1376,7 @@ table_name  locality
 t           NULL
 s           NULL
 v           NULL
+mat_view    NULL
 s2          NULL
 v2          NULL
+mat_view2   NULL

pkg/sql/alter_database.go

@@ -588,10 +588,18 @@ func addDefaultLocalityConfigToAllTables(
 				return err
 			}
 
-			if err := p.alterTableDescLocalityToRegionalByTable(
-				ctx, tree.PrimaryRegionNotSpecifiedName, mutDesc, regionEnumID,
-			); err != nil {
-				return err
+			if mutDesc.MaterializedView() {
+				if err := p.alterTableDescLocalityToGlobal(
+					ctx, mutDesc, regionEnumID,
+				); err != nil {
+					return err
+				}
+			} else {
+				if err := p.alterTableDescLocalityToRegionalByTable(
+					ctx, tree.PrimaryRegionNotSpecifiedName, mutDesc, regionEnumID,
+				); err != nil {
+					return err
+				}
 			}
 
 			if err := p.writeSchemaChangeToBatch(ctx, mutDesc, b); err != nil {

pkg/sql/catalog/tabledesc/validate.go

@@ -1248,6 +1248,33 @@ func (desc *wrapper) validateTableLocalityConfig(
 		return errors.Wrapf(err, "multi-region enum with ID %d does not exist", regionsEnumID)
 	}
 
+	// Check non-table items have a correctly set locality.
+	if desc.IsSequence() {
+		if !desc.IsLocalityRegionalByTable() {
+			return errors.AssertionFailedf(
+				"expected sequence %s to have locality REGIONAL BY TABLE",
+				desc.Name,
+			)
+		}
+	}
+	if desc.IsView() {
+		if desc.MaterializedView() {
+			if !desc.IsLocalityGlobal() {
+				return errors.AssertionFailedf(
+					"expected materialized view %s to have locality GLOBAL",
+					desc.Name,
+				)
+			}
+		} else {
+			if !desc.IsLocalityRegionalByTable() {
+				return errors.AssertionFailedf(
+					"expected view %s to have locality REGIONAL BY TABLE",
+					desc.Name,
+				)
+			}
+		}
+	}
+
 	// REGIONAL BY TABLE tables homed in the primary region should include a
 	// reference to the multi-region type descriptor and a corresponding
 	// backreference. All other patterns should only contain a reference if there

pkg/sql/create_view.go

@@ -150,6 +150,7 @@ func (n *createViewNode) startExec(params runParams) error {
 	privs := CreateInheritedPrivilegesFromDBDesc(n.dbDesc, params.SessionData().User())
 
 	var newDesc *tabledesc.Mutable
+	applyGlobalMultiRegionZoneConfig := false
 
 	// If replacingDesc != nil, we found an existing view while resolving
 	// the name for our view. So instead of creating a new view, replace
@@ -208,6 +209,11 @@ func (n *createViewNode) startExec(params runParams) error {
 			if err := desc.AllocateIDs(params.ctx); err != nil {
 				return err
 			}
+			// For multi-region databases, we want this descriptor to be GLOBAL instead.
+			if n.dbDesc.IsMultiRegion() {
+				desc.SetTableLocalityGlobal()
+				applyGlobalMultiRegionZoneConfig = true
+			}
 		}
 
 		// Collect all the tables/views this view depends on.
@@ -266,6 +272,25 @@ func (n *createViewNode) startExec(params runParams) error {
 		return err
 	}
 
+	if applyGlobalMultiRegionZoneConfig {
+		regionConfig, err := SynthesizeRegionConfig(params.ctx, params.p.txn, n.dbDesc.ID, params.p.Descriptors())
+		if err != nil {
+			return err
+		}
+		if err := ApplyZoneConfigForMultiRegionTable(
+			params.ctx,
+			params.p.txn,
+			params.p.ExecCfg(),
+			regionConfig,
+			newDesc,
+			applyZoneConfigForMultiRegionTableOptionTableNewConfig(
+				tabledesc.LocalityConfigGlobal(),
+			),
+		); err != nil {
+			return err
+		}
+	}
+
 	// Log Create View event. This is an auditable log event and is
 	// recorded in the same transaction as the table descriptor update.
 	return params.p.logEvent(params.ctx,