XieJiann commented on code in PR #28853: URL: https://github.com/apache/doris/pull/28853#discussion_r1436770446
########## fe/fe-core/src/test/java/org/apache/doris/nereids/rules/rewrite/EliminateJoinByUniqueTest.java: ########## @@ -0,0 +1,97 @@ +// 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.doris.nereids.rules.rewrite; + +import org.apache.doris.nereids.util.MemoPatternMatchSupported; +import org.apache.doris.nereids.util.PlanChecker; +import org.apache.doris.utframe.TestWithFeService; + +import org.junit.jupiter.api.Test; + +class EliminateJoinByUniqueTest 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" + + " id1 int not null,\n" + + " id_null int,\n" + + ")\n" + + "DUPLICATE KEY(id1)\n" + + "DISTRIBUTED BY HASH(id1) BUCKETS 10\n" + + "PROPERTIES (\"replication_num\" = \"1\")\n", + "CREATE TABLE IF NOT EXISTS t2 (\n" + + " id2 int not null\n" + + ")\n" + + "DUPLICATE KEY(id2)\n" + + "DISTRIBUTED BY HASH(id2) BUCKETS 10\n" + + "PROPERTIES (\"replication_num\" = \"1\")\n"); + addConstraint("Alter table t1 add constraint uk_t1 unique (id1)"); + addConstraint("Alter table t1 add constraint id_null unique (id_null)"); + addConstraint("Alter table t2 add constraint uk_t2 unique (id2)"); + } + + @Test + void testNotNull() throws Exception { + String sql = "select t1.id1 from t1 left outer join t2 on t1.id1 = t2.id2"; + PlanChecker.from(connectContext) + .analyze(sql) + .rewrite() + .nonMatch(logicalJoin()) + .printlnTree(); + + sql = "select t1.id1 from t1 left outer join t2 on t1.id1 <=> t2.id2"; + PlanChecker.from(connectContext) + .analyze(sql) + .rewrite() + .matches(logicalJoin()) + .printlnTree(); + + sql = "select t2.id2 from t1 left outer join t2 on t1.id1 = t2.id2"; + PlanChecker.from(connectContext) + .analyze(sql) + .rewrite() + .matches(logicalJoin()) + .printlnTree(); + } + + @Test + void testNull() throws Exception { Review Comment: multijoin has no difference with the single join -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
