| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.beam.sdk.extensions.sql.impl.planner; |
| |
| import org.apache.beam.sdk.extensions.sql.impl.rel.BaseRelTest; |
| import org.apache.beam.sdk.extensions.sql.impl.rel.BeamSqlRelUtils; |
| import org.apache.beam.sdk.extensions.sql.meta.provider.test.TestBoundedTable; |
| import org.apache.beam.sdk.schemas.Schema; |
| import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelOptCluster; |
| import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelTraitSet; |
| import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.volcano.RelSubset; |
| import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.RelNode; |
| import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.SingleRel; |
| import org.junit.Assert; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| /** This tests the NodeStats Metadata handler and the estimations. */ |
| public class NodeStatsTest extends BaseRelTest { |
| static class UnknownRel extends SingleRel { |
| protected UnknownRel(RelOptCluster cluster, RelTraitSet traits, RelNode input) { |
| super(cluster, traits, input); |
| } |
| } |
| |
| public static final TestBoundedTable ORDER_DETAILS1 = |
| TestBoundedTable.of( |
| Schema.FieldType.INT32, "order_id", |
| Schema.FieldType.INT32, "site_id", |
| Schema.FieldType.INT32, "price") |
| .addRows(1, 2, 3, 2, 3, 3, 3, 4, 5); |
| |
| public static final TestBoundedTable ORDER_DETAILS2 = |
| TestBoundedTable.of( |
| Schema.FieldType.INT32, "order_id", |
| Schema.FieldType.INT32, "site_id", |
| Schema.FieldType.INT32, "price") |
| .addRows(1, 2, 3, 2, 3, 3, 3, 4, 5); |
| |
| @BeforeClass |
| public static void prepare() { |
| registerTable("ORDER_DETAILS1", ORDER_DETAILS1); |
| registerTable("ORDER_DETAILS2", ORDER_DETAILS2); |
| } |
| |
| @Test |
| public void testUnknownRel() { |
| String sql = " select * from ORDER_DETAILS1 "; |
| RelNode root = env.parseQuery(sql); |
| RelNode unknown = new UnknownRel(root.getCluster(), null, null); |
| NodeStats nodeStats = |
| unknown |
| .metadata(NodeStatsMetadata.class, unknown.getCluster().getMetadataQuery()) |
| .getNodeStats(); |
| Assert.assertTrue(nodeStats.isUnknown()); |
| } |
| |
| @Test |
| public void testKnownRel() { |
| String sql = " select * from ORDER_DETAILS1 "; |
| RelNode root = env.parseQuery(sql); |
| NodeStats nodeStats = |
| root.metadata(NodeStatsMetadata.class, root.getCluster().getMetadataQuery()).getNodeStats(); |
| Assert.assertFalse(nodeStats.isUnknown()); |
| } |
| |
| @Test |
| public void testSubsetHavingBest() { |
| String sql = " select * from ORDER_DETAILS1 "; |
| RelNode root = env.parseQuery(sql); |
| root = root.getCluster().getPlanner().getRoot(); |
| |
| // tests if we are actually testing what we want. |
| Assert.assertTrue(root instanceof RelSubset); |
| |
| NodeStats estimates = BeamSqlRelUtils.getNodeStats(root, root.getCluster().getMetadataQuery()); |
| Assert.assertFalse(estimates.isUnknown()); |
| } |
| } |