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Add WHEN STALE syntax for CREATE MATERIALIZED VIEW #27356

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df2503a
Add WHEN STALE FAIL/INLINE syntax
piotrrzysko Nov 18, 2025
976cbc3
Add when stale behavior in ConnectorMaterializedViewDefinition
piotrrzysko Nov 18, 2025
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10 changes: 7 additions & 3 deletions core/trino-grammar/src/main/antlr4/io/trino/grammar/sql/SqlBase.g4
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Expand Up @@ -106,6 +106,7 @@ statement
| CREATE (OR REPLACE)? MATERIALIZED VIEW
(IF NOT EXISTS)? qualifiedName
(GRACE PERIOD interval)?
(WHEN STALE (INLINE | FAIL))?
(COMMENT string)?
(WITH properties)? AS rootQuery #createMaterializedView
| CREATE (OR REPLACE)? VIEW qualifiedName
Expand Down Expand Up @@ -1035,10 +1036,10 @@ nonReserved
| CALL | CALLED | CASCADE | CATALOG | CATALOGS | COLUMN | COLUMNS | COMMENT | COMMIT | COMMITTED | CONDITIONAL | COPARTITION | CORRESPONDING | COUNT | CURRENT
| DATA | DATE | DAY | DECLARE | DEFAULT | DEFINE | DEFINER | DENY | DESC | DESCRIPTOR | DETERMINISTIC | DISTRIBUTED | DO | DOUBLE
| ELSEIF | EMPTY | ENCODING | ERROR | EXCLUDING | EXECUTE | EXPLAIN
| FAST | FETCH | FILTER | FINAL | FIRST | FOLLOWING | FORMAT | FORWARD | FUNCTION | FUNCTIONS
| FAIL | FAST | FETCH | FILTER | FINAL | FIRST | FOLLOWING | FORMAT | FORWARD | FUNCTION | FUNCTIONS
| GRACE | GRANT | GRANTED | GRANTS | GRAPHVIZ | GROUPS
| HOUR
| IF | IGNORE | IMMEDIATE | INCLUDING | INITIAL | INPUT | INTERVAL | INVOKER | IO | ITERATE | ISOLATION
| IF | IGNORE | IMMEDIATE | INCLUDING | INITIAL | INLINE | INPUT | INTERVAL | INVOKER | IO | ITERATE | ISOLATION
| JSON
| KEEP | KEY | KEYS
| LANGUAGE | LAST | LATERAL | LEADING | LEAVE | LEVEL | LIMIT | LOCAL | LOGICAL | LOOP
Expand All @@ -1049,7 +1050,7 @@ nonReserved
| QUOTES
| RANGE | READ | REFRESH | RENAME | REPEAT | REPEATABLE | REPLACE | RESET | RESPECT | RESTRICT | RETURN | RETURNING | RETURNS | REVOKE | ROLE | ROLES | ROLLBACK | ROW | ROWS | RUNNING
| SCALAR | SCHEMA | SCHEMAS | SECOND | SECURITY | SEEK | SERIALIZABLE | SESSION | SET | SETS
| SHOW | SOME | START | STATS | SUBSET | SUBSTRING | SYSTEM
| SHOW | SOME | STALE | START | STATS | SUBSET | SUBSTRING | SYSTEM
| TABLES | TABLESAMPLE | TEXT | TEXT_STRING | TIES | TIME | TIMESTAMP | TO | TRAILING | TRANSACTION | TRUNCATE | TRY_CAST | TYPE
| UNBOUNDED | UNCOMMITTED | UNCONDITIONAL | UNIQUE | UNKNOWN | UNMATCHED | UNTIL | UPDATE | USE | USER | UTF16 | UTF32 | UTF8
| VALIDATE | VALUE | VERBOSE | VERSION | VIEW
Expand Down Expand Up @@ -1141,6 +1142,7 @@ EXECUTE: 'EXECUTE';
EXISTS: 'EXISTS';
EXPLAIN: 'EXPLAIN';
EXTRACT: 'EXTRACT';
FAIL: 'FAIL';
FALSE: 'FALSE';
FAST: 'FAST';
FETCH: 'FETCH';
Expand Down Expand Up @@ -1171,6 +1173,7 @@ IMMEDIATE: 'IMMEDIATE';
IN: 'IN';
INCLUDING: 'INCLUDING';
INITIAL: 'INITIAL';
INLINE: 'INLINE';
INNER: 'INNER';
INPUT: 'INPUT';
INSERT: 'INSERT';
Expand Down Expand Up @@ -1301,6 +1304,7 @@ SET: 'SET';
SETS: 'SETS';
SHOW: 'SHOW';
SOME: 'SOME';
STALE: 'STALE';
START: 'START';
STATS: 'STATS';
SUBSET: 'SUBSET';
Expand Down
3 changes: 3 additions & 0 deletions core/trino-grammar/src/test/java/io/trino/grammar/sql/TestSqlKeywords.java
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Expand Up @@ -109,6 +109,7 @@ public void test()
"EXISTS",
"EXPLAIN",
"EXTRACT",
"FAIL",
"FALSE",
"FAST",
"FETCH",
Expand Down Expand Up @@ -139,6 +140,7 @@ public void test()
"IN",
"INCLUDING",
"INITIAL",
"INLINE",
"INNER",
"INPUT",
"INSERT",
Expand Down Expand Up @@ -270,6 +272,7 @@ public void test()
"SHOW",
"SKIP",
"SOME",
"STALE",
"START",
"STATS",
"STRING",
Expand Down
11 changes: 11 additions & 0 deletions core/trino-main/src/main/java/io/trino/execution/CreateMaterializedViewTask.java
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Expand Up @@ -27,6 +27,7 @@
import io.trino.metadata.ViewColumn;
import io.trino.security.AccessControl;
import io.trino.spi.TrinoException;
import io.trino.spi.connector.ConnectorMaterializedViewDefinition.WhenStaleBehavior;
import io.trino.spi.type.Type;
import io.trino.sql.PlannerContext;
import io.trino.sql.analyzer.Analysis;
Expand Down Expand Up @@ -55,6 +56,7 @@
import static io.trino.spi.StandardErrorCode.NOT_SUPPORTED;
import static io.trino.spi.StandardErrorCode.TYPE_MISMATCH;
import static io.trino.spi.connector.ConnectorCapabilities.MATERIALIZED_VIEW_GRACE_PERIOD;
import static io.trino.spi.connector.ConnectorCapabilities.MATERIALIZED_VIEW_WHEN_STALE_BEHAVIOR;
import static io.trino.sql.SqlFormatterUtil.getFormattedSql;
import static io.trino.sql.analyzer.ConstantEvaluator.evaluateConstant;
import static io.trino.sql.analyzer.SemanticExceptions.semanticException;
Expand Down Expand Up @@ -156,12 +158,21 @@ Analysis executeInternal(
return Duration.ofMillis(milliseconds);
});

Optional<WhenStaleBehavior> whenStale = statement.getWhenStaleBehavior()
.map(_ -> {
if (!plannerContext.getMetadata().getConnectorCapabilities(session, catalogHandle).contains(MATERIALIZED_VIEW_WHEN_STALE_BEHAVIOR)) {
throw semanticException(NOT_SUPPORTED, statement, "Catalog '%s' does not support WHEN STALE", catalogName);
}
Comment on lines +163 to +165
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@Praveen2112 Praveen2112 Nov 18, 2025

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Should catalogs need to handle anything in order to support it ? If it is some sort of MV property (like security mode in case of views) - It should be supported for all connectors supporting MVs right ? Or we could fail during the creation or alter phase ?

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@findepi findepi Nov 26, 2025

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I don't understand why we need a connector capability for this.
What's the default behavior of WHEN STALE going to be?

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@findepi findepi Nov 26, 2025

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oh, i get it -- storing the clause requires a capability.

throw semanticException(NOT_SUPPORTED, statement, "WHEN STALE is not supported yet");
});

MaterializedViewDefinition definition = new MaterializedViewDefinition(
sql,
session.getCatalog(),
session.getSchema(),
columns,
gracePeriod,
whenStale,
statement.getComment(),
session.getIdentity(),
session.getPath().getPath().stream()
Expand Down
11 changes: 11 additions & 0 deletions core/trino-main/src/main/java/io/trino/metadata/MaterializedViewDefinition.java
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Expand Up @@ -16,6 +16,7 @@
import io.trino.spi.connector.CatalogSchemaName;
import io.trino.spi.connector.CatalogSchemaTableName;
import io.trino.spi.connector.ConnectorMaterializedViewDefinition;
import io.trino.spi.connector.ConnectorMaterializedViewDefinition.WhenStaleBehavior;
import io.trino.spi.security.Identity;

import java.time.Duration;
Expand All @@ -31,6 +32,7 @@ public class MaterializedViewDefinition
extends ViewDefinition
{
private final Optional<Duration> gracePeriod;
private final Optional<WhenStaleBehavior> whenStaleBehavior;
private final Optional<CatalogSchemaTableName> storageTable;

public MaterializedViewDefinition(
Expand All @@ -39,6 +41,7 @@ public MaterializedViewDefinition(
Optional<String> schema,
List<ViewColumn> columns,
Optional<Duration> gracePeriod,
Optional<WhenStaleBehavior> whenStaleBehavior,
Optional<String> comment,
Identity owner,
List<CatalogSchemaName> path,
Expand All @@ -47,6 +50,7 @@ public MaterializedViewDefinition(
super(originalSql, catalog, schema, columns, comment, Optional.of(owner), path);
this.gracePeriod = requireNonNull(gracePeriod, "gracePeriod is null");
checkArgument(gracePeriod.isEmpty() || !gracePeriod.get().isNegative(), "gracePeriod cannot be negative: %s", gracePeriod);
this.whenStaleBehavior = requireNonNull(whenStaleBehavior, "whenStaleBehavior is null");
this.storageTable = requireNonNull(storageTable, "storageTable is null");
}

Expand All @@ -55,6 +59,11 @@ public Optional<Duration> getGracePeriod()
return gracePeriod;
}

public Optional<WhenStaleBehavior> getWhenStaleBehavior()
{
return whenStaleBehavior;
}

public Optional<CatalogSchemaTableName> getStorageTable()
{
return storageTable;
Expand All @@ -71,6 +80,7 @@ public ConnectorMaterializedViewDefinition toConnectorMaterializedViewDefinition
.map(column -> new ConnectorMaterializedViewDefinition.Column(column.name(), column.type(), column.comment()))
.collect(toImmutableList()),
getGracePeriod(),
whenStaleBehavior,
getComment(),
getRunAsIdentity().map(Identity::getUser),
getPath());
Expand All @@ -85,6 +95,7 @@ public String toString()
.add("schema", getSchema().orElse(null))
.add("columns", getColumns())
.add("gracePeriod", gracePeriod.orElse(null))
.add("whenStaleBehavior", whenStaleBehavior.orElse(null))
.add("comment", getComment().orElse(null))
.add("runAsIdentity", getRunAsIdentity())
.add("path", getPath())
Expand Down
1 change: 1 addition & 0 deletions core/trino-main/src/main/java/io/trino/metadata/MetadataManager.java
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Expand Up @@ -1827,6 +1827,7 @@ private static MaterializedViewDefinition createMaterializedViewDefinition(Conne
.map(column -> new ViewColumn(column.getName(), column.getType(), Optional.empty()))
.collect(toImmutableList()),
view.getGracePeriod(),
view.getWhenStaleBehavior(),
view.getComment(),
runAsIdentity,
view.getPath(),
Expand Down
1 change: 1 addition & 0 deletions core/trino-main/src/main/java/io/trino/sql/rewrite/ShowQueriesRewrite.java
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Expand Up @@ -562,6 +562,7 @@ private Query showCreateMaterializedView(ShowCreate node)
false,
false,
Optional.empty(), // TODO support GRACE PERIOD
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@findepi findepi Nov 26, 2025

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did we miss doing this?

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@piotrrzysko piotrrzysko Nov 27, 2025

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Yeah, it looks like someone (6d5215c) forgot about it 😀.

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@findepi findepi Nov 27, 2025

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do you want to create a separate PR to have this addressed?

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@piotrrzysko piotrrzysko Nov 27, 2025

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Sure!

Optional.empty(), // TODO support WHEN STALE
propertyNodes,
viewDefinition.get().getComment())).trim();
return singleValueQuery("Create Materialized View", sql);
Expand Down
2 changes: 2 additions & 0 deletions core/trino-main/src/test/java/io/trino/execution/BaseDataDefinitionTaskTest.java
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Expand Up @@ -205,6 +205,7 @@ protected MaterializedViewDefinition someMaterializedView(String sql, List<ViewC
columns,
Optional.empty(),
Optional.empty(),
Optional.empty(),
Identity.ofUser("owner"),
ImmutableList.of(),
Optional.empty());
Expand Down Expand Up @@ -591,6 +592,7 @@ public void setMaterializedViewColumnComment(Session session, QualifiedObjectNam
.map(currentViewColumn -> columnName.equals(currentViewColumn.name()) ? new ViewColumn(currentViewColumn.name(), currentViewColumn.type(), comment) : currentViewColumn)
.collect(toImmutableList()),
view.getGracePeriod(),
view.getWhenStaleBehavior(),
view.getComment(),
view.getRunAsIdentity().get(),
view.getPath(),
Expand Down
5 changes: 5 additions & 0 deletions core/trino-main/src/test/java/io/trino/execution/TestCreateMaterializedViewTask.java
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Expand Up @@ -127,6 +127,7 @@ void testCreateMaterializedViewIfNotExists()
false,
true,
Optional.empty(),
Optional.empty(),
ImmutableList.of(),
Optional.empty());

Expand All @@ -147,6 +148,7 @@ void testCreateMaterializedViewWithExistingView()
false,
false,
Optional.empty(),
Optional.empty(),
ImmutableList.of(),
Optional.empty());

Expand All @@ -169,6 +171,7 @@ void testCreateMaterializedViewWithInvalidProperty()
false,
true,
Optional.empty(),
Optional.empty(),
ImmutableList.of(new Property(new NodeLocation(1, 88), new Identifier("baz"), new StringLiteral("abc"))),
Optional.empty());

Expand All @@ -191,6 +194,7 @@ void testCreateMaterializedViewWithDefaultProperties()
false,
true,
Optional.empty(),
Optional.empty(),
ImmutableList.of(
new Property(new Identifier("foo")), // set foo to DEFAULT
new Property(new Identifier("bar"))), // set bar to DEFAULT
Expand All @@ -217,6 +221,7 @@ public void testCreateDenyPermission()
false,
true,
Optional.empty(),
Optional.empty(),
ImmutableList.of(),
Optional.empty());
queryRunner.getAccessControl().deny(privilege("test_mv_deny", CREATE_MATERIALIZED_VIEW));
Expand Down
6 changes: 6 additions & 0 deletions core/trino-main/src/test/java/io/trino/sql/analyzer/TestAnalyzer.java
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Expand Up @@ -7889,6 +7889,7 @@ public void setup()
Optional.of("s1"),
ImmutableList.of(new ViewColumn("a", BIGINT.getTypeId(), Optional.empty())),
Optional.of(Duration.ZERO),
Optional.empty(),
Optional.of("comment"),
Identity.ofUser("user"),
ImmutableList.of(),
Expand Down Expand Up @@ -8019,6 +8020,7 @@ public void setup()
ImmutableList.of(new ViewColumn("a", BIGINT.getTypeId(), Optional.empty())),
Optional.of(Duration.ZERO),
Optional.empty(),
Optional.empty(),
Identity.ofUser("some user"),
ImmutableList.of(),
Optional.of(new CatalogSchemaTableName(TPCH_CATALOG, "s1", "t1"))),
Expand Down Expand Up @@ -8073,6 +8075,7 @@ public void setup()
ImmutableList.of(new ViewColumn("a", BIGINT.getTypeId(), Optional.empty()), new ViewColumn("b", BIGINT.getTypeId(), Optional.empty())),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Identity.ofUser("some user"),
ImmutableList.of(),
// t3 has a, b column and hidden column x
Expand All @@ -8093,6 +8096,7 @@ public void setup()
ImmutableList.of(new ViewColumn("a", BIGINT.getTypeId(), Optional.empty())),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Identity.ofUser("some user"),
ImmutableList.of(),
Optional.of(new CatalogSchemaTableName(TPCH_CATALOG, "s1", "t2"))),
Expand All @@ -8112,6 +8116,7 @@ public void setup()
ImmutableList.of(new ViewColumn("a", BIGINT.getTypeId(), Optional.empty()), new ViewColumn("c", BIGINT.getTypeId(), Optional.empty())),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Identity.ofUser("some user"),
ImmutableList.of(),
Optional.of(new CatalogSchemaTableName(TPCH_CATALOG, "s1", "t2"))),
Expand All @@ -8131,6 +8136,7 @@ public void setup()
ImmutableList.of(new ViewColumn("a", BIGINT.getTypeId(), Optional.empty()), new ViewColumn("b", RowType.anonymousRow(TINYINT).getTypeId(), Optional.empty())),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Identity.ofUser("some user"),
ImmutableList.of(),
Optional.of(new CatalogSchemaTableName(TPCH_CATALOG, "s1", "t2"))),
Expand Down
4 changes: 4 additions & 0 deletions core/trino-main/src/test/java/io/trino/sql/planner/TestMaterializedViews.java
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Expand Up @@ -186,6 +186,7 @@ protected PlanTester createPlanTester()
ImmutableList.of(new ViewColumn("a", BIGINT.getTypeId(), Optional.empty()), new ViewColumn("b", BIGINT.getTypeId(), Optional.empty())),
Optional.of(STALE_MV_STALENESS.plusHours(1)),
Optional.empty(),
Optional.empty(),
Identity.ofUser("some user"),
ImmutableList.of(),
Optional.of(new CatalogSchemaTableName(TEST_CATALOG_NAME, SCHEMA, "storage_table")));
Expand Down Expand Up @@ -220,6 +221,7 @@ protected PlanTester createPlanTester()
ImmutableList.of(new ViewColumn("a", BIGINT.getTypeId(), Optional.empty()), new ViewColumn("b", BIGINT.getTypeId(), Optional.empty())),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Identity.ofUser("some user"),
ImmutableList.of(),
Optional.of(new CatalogSchemaTableName(TEST_CATALOG_NAME, SCHEMA, "storage_table_with_casts")));
Expand Down Expand Up @@ -254,6 +256,7 @@ protected PlanTester createPlanTester()
ImmutableList.of(new ViewColumn("id", BIGINT.getTypeId(), Optional.empty()), new ViewColumn("ts", timestampWithTimezone3.getTypeId(), Optional.empty())),
Optional.empty(),
Optional.empty(),
Optional.empty(),
Identity.ofUser("some user"),
ImmutableList.of(),
Optional.of(new CatalogSchemaTableName(TEST_CATALOG_NAME, SCHEMA, "timestamp_test_storage")));
Expand Down Expand Up @@ -285,6 +288,7 @@ private void createMaterializedView(String materializedViewName, String query)
ImmutableList.of(new ViewColumn("a", BIGINT.getTypeId(), Optional.empty()), new ViewColumn("b", BIGINT.getTypeId(), Optional.empty())),
Optional.of(STALE_MV_STALENESS.plusHours(1)),
Optional.empty(),
Optional.empty(),
Identity.ofUser("some user"),
ImmutableList.of(),
Optional.of(new CatalogSchemaTableName(TEST_CATALOG_NAME, SCHEMA, "storage_table")));
Expand Down
3 changes: 3 additions & 0 deletions core/trino-main/src/test/java/io/trino/sql/query/TestColumnMask.java
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Expand Up @@ -133,6 +133,7 @@ public TestColumnMask()
new ConnectorMaterializedViewDefinition.Column("comment", VarcharType.createVarcharType(152).getTypeId(), Optional.empty())),
Optional.of(Duration.ZERO),
Optional.empty(),
Optional.empty(),
Optional.of(VIEW_OWNER),
ImmutableList.of());

Expand All @@ -148,6 +149,7 @@ public TestColumnMask()
new ConnectorMaterializedViewDefinition.Column("comment", VarcharType.createVarcharType(152).getTypeId(), Optional.empty())),
Optional.of(Duration.ZERO),
Optional.empty(),
Optional.empty(),
Optional.of(VIEW_OWNER),
ImmutableList.of());

Expand All @@ -163,6 +165,7 @@ public TestColumnMask()
new ConnectorMaterializedViewDefinition.Column("comment", VarcharType.createVarcharType(152).getTypeId(), Optional.empty())),
Optional.of(Duration.ZERO),
Optional.empty(),
Optional.empty(),
Optional.of(VIEW_OWNER),
ImmutableList.of());

Expand Down
1 change: 1 addition & 0 deletions core/trino-main/src/test/java/io/trino/testing/TestTestingMetadata.java
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Expand Up @@ -61,6 +61,7 @@ private static ConnectorMaterializedViewDefinition someMaterializedView()
ImmutableList.of(new Column("test", BIGINT.getTypeId(), Optional.empty())),
Optional.of(Duration.ZERO),
Optional.empty(),
Optional.empty(),
Optional.of("owner"),
ImmutableList.of());
}
Expand Down
2 changes: 2 additions & 0 deletions core/trino-parser/src/main/java/io/trino/sql/SqlFormatter.java
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Expand Up @@ -1262,6 +1262,8 @@ protected Void visitCreateMaterializedView(CreateMaterializedView node, Integer
builder.append(formatName(node.getName()));
node.getGracePeriod().ifPresent(interval ->
builder.append("\nGRACE PERIOD ").append(formatExpression(interval)));
node.getWhenStaleBehavior().ifPresent(whenStale ->
builder.append("\nWHEN STALE ").append(whenStale.name()));
node.getComment().ifPresent(comment -> builder
.append("\nCOMMENT ")
.append(formatStringLiteral(comment)));
Expand Down
10 changes: 10 additions & 0 deletions core/trino-parser/src/main/java/io/trino/sql/parser/AstBuilder.java
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Expand Up @@ -57,6 +57,7 @@
import io.trino.sql.tree.CreateCatalog;
import io.trino.sql.tree.CreateFunction;
import io.trino.sql.tree.CreateMaterializedView;
import io.trino.sql.tree.CreateMaterializedView.WhenStaleBehavior;
import io.trino.sql.tree.CreateRole;
import io.trino.sql.tree.CreateSchema;
import io.trino.sql.tree.CreateTable;
Expand Down Expand Up @@ -613,6 +614,14 @@ public Node visitCreateMaterializedView(SqlBaseParser.CreateMaterializedViewCont
gracePeriod = Optional.of((IntervalLiteral) visit(context.interval()));
}

Optional<WhenStaleBehavior> whenStale = Optional.empty();
if (context.INLINE() != null) {
whenStale = Optional.of(WhenStaleBehavior.INLINE);
}
else if (context.FAIL() != null) {
whenStale = Optional.of(WhenStaleBehavior.FAIL);
}

Optional<String> comment = Optional.empty();
if (context.COMMENT() != null) {
comment = Optional.of(visitString(context.string()).getValue());
Expand All @@ -630,6 +639,7 @@ public Node visitCreateMaterializedView(SqlBaseParser.CreateMaterializedViewCont
context.REPLACE() != null,
context.EXISTS() != null,
gracePeriod,
whenStale,
properties,
comment);
}
Expand Down
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