io.trino.sql.planner.sanity.NoSubqueryExpressionLeftChecker Maven / Gradle / Ivy
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.trino.sql.planner.sanity;
import io.trino.Session;
import io.trino.execution.warnings.WarningCollector;
import io.trino.sql.PlannerContext;
import io.trino.sql.planner.ExpressionExtractor;
import io.trino.sql.planner.TypeAnalyzer;
import io.trino.sql.planner.TypeProvider;
import io.trino.sql.planner.plan.PlanNode;
import io.trino.sql.tree.DefaultTraversalVisitor;
import io.trino.sql.tree.Expression;
import io.trino.sql.tree.SubqueryExpression;
import static java.lang.String.format;
public final class NoSubqueryExpressionLeftChecker
implements PlanSanityChecker.Checker
{
@Override
public void validate(
PlanNode plan,
Session session,
PlannerContext plannerContext,
TypeAnalyzer typeAnalyzer,
TypeProvider types,
WarningCollector warningCollector)
{
for (Expression expression : ExpressionExtractor.extractExpressions(plan)) {
new DefaultTraversalVisitor()
{
@Override
protected Void visitSubqueryExpression(SubqueryExpression node, Void context)
{
throw new IllegalStateException(format("Unexpected subquery expression in logical plan: %s", node));
}
}.process(expression, null);
}
}
}