ccaominh commented on a change in pull request #9235: Add join-related DataSource types, and analysis functionality. URL: https://github.com/apache/druid/pull/9235#discussion_r369323251
########## File path: processing/src/test/java/org/apache/druid/query/planning/DataSourceAnalysisTest.java ########## @@ -0,0 +1,476 @@ +/* + * 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.druid.query.planning; + +import com.google.common.collect.ImmutableList; +import org.apache.druid.java.util.common.Intervals; +import org.apache.druid.java.util.common.StringUtils; +import org.apache.druid.java.util.common.granularity.Granularities; +import org.apache.druid.math.expr.ExprMacroTable; +import org.apache.druid.query.DataSource; +import org.apache.druid.query.InlineDataSource; +import org.apache.druid.query.JoinDataSource; +import org.apache.druid.query.LookupDataSource; +import org.apache.druid.query.QueryDataSource; +import org.apache.druid.query.TableDataSource; +import org.apache.druid.query.UnionDataSource; +import org.apache.druid.query.groupby.GroupByQuery; +import org.apache.druid.query.spec.MultipleIntervalSegmentSpec; +import org.apache.druid.segment.column.ValueType; +import org.apache.druid.segment.join.JoinConditionAnalysis; +import org.apache.druid.segment.join.JoinType; +import org.junit.Assert; +import org.junit.Test; + +import java.util.Collections; +import java.util.Optional; + +public class DataSourceAnalysisTest +{ + private static final TableDataSource TABLE_FOO = new TableDataSource("foo"); + private static final TableDataSource TABLE_BAR = new TableDataSource("bar"); + private static final LookupDataSource LOOKUP_LOOKYLOO = new LookupDataSource("lookyloo"); + private static final InlineDataSource INLINE = InlineDataSource.fromIterable( + ImmutableList.of("column"), + ImmutableList.of(ValueType.STRING), + ImmutableList.of(new Object[0]) + ); + + @Test + public void testTable() + { + final DataSourceAnalysis analysis = DataSourceAnalysis.forDataSource(TABLE_FOO); + + Assert.assertTrue(analysis.isConcreteBased()); + Assert.assertTrue(analysis.isConcreteTableBased()); + Assert.assertFalse(analysis.isGlobal()); + Assert.assertFalse(analysis.isQuery()); + Assert.assertEquals(TABLE_FOO, analysis.getDataSource()); + Assert.assertEquals(TABLE_FOO, analysis.getBaseDataSource()); + Assert.assertEquals(Optional.of(TABLE_FOO), analysis.getBaseTableDataSource()); + Assert.assertEquals(Optional.empty(), analysis.getBaseQuerySegmentSpec()); + Assert.assertEquals(Collections.emptyList(), analysis.getPreJoinableClauses()); + } + + @Test + public void testUnion() + { + final UnionDataSource unionDataSource = new UnionDataSource(ImmutableList.of(TABLE_FOO, TABLE_BAR)); + final DataSourceAnalysis analysis = DataSourceAnalysis.forDataSource(unionDataSource); + + Assert.assertTrue(analysis.isConcreteBased()); + Assert.assertTrue(analysis.isConcreteTableBased()); + Assert.assertFalse(analysis.isGlobal()); + Assert.assertFalse(analysis.isQuery()); + Assert.assertEquals(unionDataSource, analysis.getDataSource()); + Assert.assertEquals(unionDataSource, analysis.getBaseDataSource()); + Assert.assertEquals(Optional.empty(), analysis.getBaseTableDataSource()); + Assert.assertEquals(Optional.empty(), analysis.getBaseQuerySegmentSpec()); + Assert.assertEquals(Collections.emptyList(), analysis.getPreJoinableClauses()); + } + + @Test + public void testQueryOnTable() + { + final QueryDataSource queryDataSource = subquery(TABLE_FOO); + final DataSourceAnalysis analysis = DataSourceAnalysis.forDataSource(queryDataSource); + + Assert.assertTrue(analysis.isConcreteBased()); + Assert.assertTrue(analysis.isConcreteTableBased()); + Assert.assertFalse(analysis.isGlobal()); + Assert.assertTrue(analysis.isQuery()); + Assert.assertEquals(queryDataSource, analysis.getDataSource()); + Assert.assertEquals(TABLE_FOO, analysis.getBaseDataSource()); + Assert.assertEquals(Optional.of(TABLE_FOO), analysis.getBaseTableDataSource()); + Assert.assertEquals( + Optional.of(new MultipleIntervalSegmentSpec(ImmutableList.of(Intervals.of("2000/3000")))), + analysis.getBaseQuerySegmentSpec() + ); + Assert.assertEquals(Collections.emptyList(), analysis.getPreJoinableClauses()); + } + + @Test + public void testQueryOnUnion() + { + final UnionDataSource unionDataSource = new UnionDataSource(ImmutableList.of(TABLE_FOO, TABLE_BAR)); + final QueryDataSource queryDataSource = subquery(unionDataSource); + final DataSourceAnalysis analysis = DataSourceAnalysis.forDataSource(queryDataSource); + + Assert.assertTrue(analysis.isConcreteBased()); + Assert.assertTrue(analysis.isConcreteTableBased()); + Assert.assertFalse(analysis.isGlobal()); + Assert.assertTrue(analysis.isQuery()); + Assert.assertEquals(queryDataSource, analysis.getDataSource()); + Assert.assertEquals(unionDataSource, analysis.getBaseDataSource()); + Assert.assertEquals(Optional.empty(), analysis.getBaseTableDataSource()); + Assert.assertEquals( + Optional.of(new MultipleIntervalSegmentSpec(ImmutableList.of(Intervals.of("2000/3000")))), + analysis.getBaseQuerySegmentSpec() + ); + Assert.assertEquals(Collections.emptyList(), analysis.getPreJoinableClauses()); + } + + @Test + public void testLookup() + { + final DataSourceAnalysis analysis = DataSourceAnalysis.forDataSource(LOOKUP_LOOKYLOO); + + Assert.assertFalse(analysis.isConcreteBased()); + Assert.assertFalse(analysis.isConcreteTableBased()); + Assert.assertTrue(analysis.isGlobal()); + Assert.assertFalse(analysis.isQuery()); + Assert.assertEquals(LOOKUP_LOOKYLOO, analysis.getDataSource()); + Assert.assertEquals(LOOKUP_LOOKYLOO, analysis.getBaseDataSource()); + Assert.assertEquals(Optional.empty(), analysis.getBaseTableDataSource()); + Assert.assertEquals(Optional.empty(), analysis.getBaseQuerySegmentSpec()); + Assert.assertEquals(Collections.emptyList(), analysis.getPreJoinableClauses()); + } + + @Test + public void testQueryOnLookup() + { + final QueryDataSource queryDataSource = new QueryDataSource( + GroupByQuery.builder() + .setDataSource(LOOKUP_LOOKYLOO) + .setInterval(new MultipleIntervalSegmentSpec(Collections.singletonList(Intervals.of("2000/3000")))) + .setGranularity(Granularities.ALL) + .build() + ); Review comment: Looks like you can use `subquery(LOOKUP_LOOKYLOO)` here instead? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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