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[feature](Nereids): Optimize Query Plan by Pulling Up Join with Commo…
…n Child from Union (apache#42033) This pr adds rewrite rule PullUpJoinFromUnion, supports pull up join from union all separately, separates this rule from apache#28682, deletes the original PullUpJoinFromUnionAll rule.
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1,025 changes: 488 additions & 537 deletions
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fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/PullUpJoinFromUnionAll.java
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fe/fe-core/src/test/java/org/apache/doris/nereids/rules/rewrite/PullUpJoinFromUnionTest.java
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| // 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. | ||
|
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| package org.apache.doris.nereids.rules.rewrite; | ||
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| import org.apache.doris.nereids.util.MemoPatternMatchSupported; | ||
| import org.apache.doris.nereids.util.PlanChecker; | ||
| import org.apache.doris.utframe.TestWithFeService; | ||
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|
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| import org.junit.jupiter.api.Test; | ||
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| class PullUpJoinFromUnionTest extends TestWithFeService implements MemoPatternMatchSupported { | ||
| @Override | ||
| protected void runBeforeAll() throws Exception { | ||
| createDatabase("test"); | ||
| connectContext.setDatabase("default_cluster:test"); | ||
| createTables( | ||
| "CREATE TABLE IF NOT EXISTS t1 (\n" | ||
| + " id int not null,\n" | ||
| + " name char\n" | ||
| + ")\n" | ||
| + "DUPLICATE KEY(id)\n" | ||
| + "DISTRIBUTED BY HASH(id) BUCKETS 10\n" | ||
| + "PROPERTIES (\"replication_num\" = \"1\")\n", | ||
| "CREATE TABLE IF NOT EXISTS t2 (\n" | ||
| + " id int not null,\n" | ||
| + " name char\n" | ||
| + ")\n" | ||
| + "DUPLICATE KEY(id)\n" | ||
| + "DISTRIBUTED BY HASH(id) BUCKETS 10\n" | ||
| + "PROPERTIES (\"replication_num\" = \"1\")\n", | ||
| "CREATE TABLE IF NOT EXISTS t3 (\n" | ||
| + " id int,\n" | ||
| + " name char\n" | ||
| + ")\n" | ||
| + "DUPLICATE KEY(id)\n" | ||
| + "DISTRIBUTED BY HASH(id) BUCKETS 10\n" | ||
| + "PROPERTIES (\"replication_num\" = \"1\")\n" | ||
| ); | ||
| connectContext.getSessionVariable().setDisableNereidsRules("PRUNE_EMPTY_PARTITION"); | ||
| } | ||
|
|
||
| @Test | ||
| void testSimple() { | ||
| String sql = "select * from t1 join t2 on t1.id = t2.id " | ||
| + "union all " | ||
| + "select * from t1 join t3 on t1.id = t3.id;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalProject(logicalUnion()), any())); | ||
| } | ||
|
|
||
| @Test | ||
| void testProject() { | ||
| String sql = "select t2.id from t1 join t2 on t1.id = t2.id " | ||
| + "union all " | ||
| + "select t3.id from t1 join t3 on t1.id = t3.id;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalProject(logicalUnion()), any())); | ||
|
|
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| sql = "select t2.id, t1.name from t1 join t2 on t1.id = t2.id " | ||
| + "union all " | ||
| + "select t3.id, t1.name from t1 join t3 on t1.id = t3.id;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalProject(logicalUnion()), any())); | ||
| } | ||
|
|
||
| @Test | ||
| void testConstant() { | ||
| String sql = "select t2.id, t1.name, 1 as id1 from t1 join t2 on t1.id = t2.id " | ||
| + "union all " | ||
| + "select t3.id, t1.name, 2 as id2 from t1 join t3 on t1.id = t3.id;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalProject(logicalUnion()), any())); | ||
| } | ||
|
|
||
| @Test | ||
| void testComplexProject() { | ||
| String sql = "select t2.id + 1, t1.name + 1, 1 as id1 from t1 join t2 on t1.id = t2.id " | ||
| + "union all " | ||
| + "select t3.id + 1, t1.name + 1, 2 as id2 from t1 join t3 on t1.id = t3.id;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalUnion(), any())); | ||
| } | ||
|
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| @Test | ||
| void testMissJoinSlot() { | ||
| String sql = "select t1.name + 1, 1 as id1 from t1 join t2 on t1.id = t2.id " | ||
| + "union all " | ||
| + "select t1.name + 1, 2 as id2 from t1 join t3 on t1.id = t3.id;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalUnion(), any())); | ||
| } | ||
|
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||
| @Test | ||
| void testFilter() { | ||
| String sql = "select * from t1 join t2 on t1.id = t2.id where t1.name = '' " | ||
| + "union all " | ||
| + "select * from t1 join t3 on t1.id = t3.id where t1.name = '' ;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalProject(logicalUnion()), any())); | ||
|
|
||
| sql = "select t2.id from t1 join t2 on t1.id = t2.id where t1.name = '' " | ||
| + "union all " | ||
| + "select t3.id from t1 join t3 on t1.id = t3.id where t1.name = '' ;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalProject(logicalUnion()), any())); | ||
| } | ||
|
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||
| @Test | ||
| void testMultipleJoinConditions() { | ||
| String sql = "select * from t1 join t2 on t1.id = t2.id and t1.name = t2.name " | ||
| + "union all " | ||
| + "select * from t1 join t3 on t1.id = t3.id and t1.name = t3.name;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalProject(logicalUnion()), any())); | ||
| } | ||
|
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| @Test | ||
| void testNonEqualityJoinConditions() { | ||
| String sql = "select * from t1 join t2 on t1.id < t2.id " | ||
| + "union all " | ||
| + "select * from t1 join t3 on t1.id < t3.id;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .nonMatch(logicalJoin(logicalProject(logicalUnion()), any())); | ||
| } | ||
|
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| @Test | ||
| void testSubqueries() { | ||
| String sql = "select * from t1 join (select * from t2 where t2.id > 10) s2 on t1.id = s2.id " | ||
| + "union all " | ||
| + "select * from t1 join (select * from t3 where t3.id > 10) s3 on t1.id = s3.id;"; | ||
| PlanChecker.from(connectContext) | ||
| .analyze(sql) | ||
| .rewrite() | ||
| .matches(logicalJoin(logicalProject(logicalUnion()), any())); | ||
| } | ||
| } |
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