| /* |
| * 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.phoenix.end2end; |
| |
| import static org.apache.phoenix.end2end.ExplainPlanWithStatsEnabledIT.getByteRowEstimates; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.util.List; |
| |
| import org.apache.phoenix.end2end.ExplainPlanWithStatsEnabledIT.Estimate; |
| import org.junit.Test; |
| |
| import com.google.common.collect.Lists; |
| |
| /** |
| * This class has tests for asserting the bytes and rows information exposed in the explain plan |
| * when statistics are disabled. |
| */ |
| public class ExplainPlanWithStatsDisabledIT extends ParallelStatsDisabledIT { |
| |
| private static void initData(Connection conn, String tableName) throws Exception { |
| conn.createStatement().execute("CREATE TABLE " + tableName |
| + " ( k INTEGER, c1.a bigint,c2.b bigint CONSTRAINT pk PRIMARY KEY (k)) GUIDE_POSTS_WIDTH = 0"); |
| conn.createStatement().execute("upsert into " + tableName + " values (100,1,3)"); |
| conn.createStatement().execute("upsert into " + tableName + " values (101,2,4)"); |
| conn.createStatement().execute("upsert into " + tableName + " values (102,2,4)"); |
| conn.createStatement().execute("upsert into " + tableName + " values (103,2,4)"); |
| conn.createStatement().execute("upsert into " + tableName + " values (104,2,4)"); |
| conn.createStatement().execute("upsert into " + tableName + " values (105,2,4)"); |
| conn.createStatement().execute("upsert into " + tableName + " values (106,2,4)"); |
| conn.createStatement().execute("upsert into " + tableName + " values (107,2,4)"); |
| conn.createStatement().execute("upsert into " + tableName + " values (108,2,4)"); |
| conn.createStatement().execute("upsert into " + tableName + " values (109,2,4)"); |
| conn.commit(); |
| // Because the guide post width is set to 0, no guide post will be collected |
| // effectively disabling stats collection. |
| conn.createStatement().execute("UPDATE STATISTICS " + tableName); |
| } |
| |
| @Test |
| public void testBytesRowsForSelect() throws Exception { |
| String tableA = generateUniqueName(); |
| String sql = "SELECT * FROM " + tableA + " where k >= ?"; |
| List<Object> binds = Lists.newArrayList(); |
| binds.add(99); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| assertEstimatesAreNull(sql, binds, conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForUnion() throws Exception { |
| String tableA = generateUniqueName(); |
| String tableB = generateUniqueName(); |
| String sql = "SELECT * FROM " + tableA + " UNION ALL SELECT * FROM " + tableB; |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| initData(conn, tableB); |
| assertEstimatesAreNull(sql, Lists.newArrayList(), conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForHashJoin() throws Exception { |
| String tableA = generateUniqueName(); |
| String tableB = generateUniqueName(); |
| String sql = |
| "SELECT ta.c1.a, ta.c2.b FROM " + tableA + " ta JOIN " + tableB |
| + " tb ON ta.k = tb.k"; |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| initData(conn, tableB); |
| assertEstimatesAreNull(sql, Lists.newArrayList(), conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForSortMergeJoin() throws Exception { |
| String tableA = generateUniqueName(); |
| String tableB = generateUniqueName(); |
| String sql = |
| "SELECT /*+ USE_SORT_MERGE_JOIN */ ta.c1.a, ta.c2.b FROM " + tableA + " ta JOIN " |
| + tableB + " tb ON ta.k = tb.k"; |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| initData(conn, tableB); |
| assertEstimatesAreNull(sql, Lists.newArrayList(), conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForAggregateQuery() throws Exception { |
| String tableA = generateUniqueName(); |
| String sql = "SELECT count(*) FROM " + tableA + " where k >= ?"; |
| List<Object> binds = Lists.newArrayList(); |
| binds.add(99); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| assertEstimatesAreNull(sql, binds, conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForUpsertSelectServerSide() throws Exception { |
| String tableA = generateUniqueName(); |
| String sql = "UPSERT INTO " + tableA + " SELECT * FROM " + tableA; |
| List<Object> binds = Lists.newArrayList(); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| conn.setAutoCommit(true); |
| assertEstimatesAreNull(sql, binds, conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForUpsertSelectClientSide() throws Exception { |
| String tableA = generateUniqueName(); |
| String sql = "UPSERT INTO " + tableA + " SELECT * FROM " + tableA; |
| List<Object> binds = Lists.newArrayList(); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| conn.setAutoCommit(false); |
| assertEstimatesAreNull(sql, binds, conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForUpsertValues() throws Exception { |
| String tableA = generateUniqueName(); |
| String sql = "UPSERT INTO " + tableA + " VALUES (?, ?, ?)"; |
| List<Object> binds = Lists.newArrayList(); |
| binds.add(99); |
| binds.add(99); |
| binds.add(99); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| assertEstimatesAreZero(sql, binds, conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForDeleteServerSide() throws Exception { |
| String tableA = generateUniqueName(); |
| String sql = "DELETE FROM " + tableA + " where k >= ?"; |
| List<Object> binds = Lists.newArrayList(); |
| binds.add(99); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| conn.setAutoCommit(true); |
| assertEstimatesAreNull(sql, binds, conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForDeleteClientSideExecutedSerially() throws Exception { |
| String tableA = generateUniqueName(); |
| String sql = "DELETE FROM " + tableA + " where k >= ? LIMIT 2"; |
| List<Object> binds = Lists.newArrayList(); |
| binds.add(99); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| conn.setAutoCommit(false); |
| Estimate info = getByteRowEstimates(conn, sql, binds); |
| assertEquals((Long) 200l, info.estimatedBytes); |
| assertEquals((Long) 2l, info.estimatedRows); |
| assertTrue(info.estimatedRows > 0); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForPointDelete() throws Exception { |
| String tableA = generateUniqueName(); |
| String sql = "DELETE FROM " + tableA + " where k = ?"; |
| List<Object> binds = Lists.newArrayList(); |
| binds.add(100); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| conn.setAutoCommit(false); |
| assertEstimatesAreZero(sql, binds, conn); |
| } |
| } |
| |
| @Test |
| public void testBytesRowsForSelectExecutedSerially() throws Exception { |
| String tableA = generateUniqueName(); |
| String sql = "SELECT * FROM " + tableA + " LIMIT 2"; |
| List<Object> binds = Lists.newArrayList(); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| conn.setAutoCommit(false); |
| Estimate info = getByteRowEstimates(conn, sql, binds); |
| assertEquals((Long) 200l, info.estimatedBytes); |
| assertEquals((Long) 2l, info.estimatedRows); |
| assertTrue(info.estimatedRows > 0); |
| } |
| } |
| |
| @Test |
| public void testEstimatesForUnionWithTablesWithNullAndLargeGpWidth() throws Exception { |
| String tableA = generateUniqueName(); |
| String tableWithLargeGPWidth = generateUniqueName(); |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| initData(conn, tableA); |
| // create a table with 1 MB guidepost width |
| long guidePostWidth = 1000000; |
| conn.createStatement() |
| .execute("CREATE TABLE " + tableWithLargeGPWidth |
| + " ( k INTEGER, c1.a bigint,c2.b bigint CONSTRAINT pk PRIMARY KEY (k)) GUIDE_POSTS_WIDTH=" |
| + guidePostWidth); |
| conn.createStatement() |
| .execute("upsert into " + tableWithLargeGPWidth + " values (100,1,3)"); |
| conn.createStatement() |
| .execute("upsert into " + tableWithLargeGPWidth + " values (101,2,4)"); |
| conn.commit(); |
| conn.createStatement().execute("UPDATE STATISTICS " + tableWithLargeGPWidth); |
| } |
| try (Connection conn = DriverManager.getConnection(getUrl())) { |
| String sql = |
| "SELECT * FROM " + tableA + " UNION ALL SELECT * FROM " + tableWithLargeGPWidth; |
| assertEstimatesAreNull(sql, Lists.newArrayList(), conn); |
| } |
| } |
| |
| public static void assertEstimatesAreNull(String sql, List<Object> binds, Connection conn) |
| throws Exception { |
| Estimate info = getByteRowEstimates(conn, sql, binds); |
| assertNull(info.estimatedBytes); |
| assertNull(info.estimatedRows); |
| assertNull(info.estimateInfoTs); |
| } |
| |
| private void assertEstimatesAreZero(String sql, List<Object> binds, Connection conn) |
| throws Exception { |
| Estimate info = getByteRowEstimates(conn, sql, binds); |
| assertEquals((Long) 0l, info.estimatedBytes); |
| assertEquals((Long) 0l, info.estimatedRows); |
| assertEquals((Long) 0l, info.estimateInfoTs); |
| } |
| } |