| /* |
| * 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.index; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.util.regex.Pattern; |
| |
| import org.apache.phoenix.end2end.NeedsOwnMiniClusterTest; |
| import org.apache.phoenix.end2end.ParallelStatsDisabledIT; |
| import org.apache.phoenix.util.PhoenixRuntime; |
| import org.apache.phoenix.util.QueryUtil; |
| import org.apache.phoenix.util.SchemaUtil; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category(NeedsOwnMiniClusterTest.class) |
| public class GlobalIndexOptimizationIT extends ParallelStatsDisabledIT { |
| |
| private void createBaseTable(String tableName, Integer saltBuckets, String splits, boolean multiTenant) throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String ddl = "CREATE TABLE " + tableName + " (t_id VARCHAR NOT NULL,\n" + |
| "k1 INTEGER NOT NULL,\n" + |
| "k2 INTEGER NOT NULL,\n" + |
| "k3 INTEGER,\n" + |
| "v1 VARCHAR,\n" + |
| "CONSTRAINT pk PRIMARY KEY (t_id, k1, k2))\n" + |
| (multiTenant ? "MULTI_TENANT = true\n" : "") |
| + (saltBuckets != null && splits == null ? (",salt_buckets=" + saltBuckets) : "" |
| + (saltBuckets == null && splits != null ? (" split on " + splits) : "")); |
| conn.createStatement().execute(ddl); |
| conn.close(); |
| } |
| |
| private void createIndex(String indexName, String tableName, String columns, String includes, boolean local) throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String ddl = "CREATE " + (local ? "LOCAL " : "") + "INDEX " + indexName + " ON " + tableName + " (" + columns + ")" + (includes != null ? " INCLUDE (" + includes + ")" : ""); |
| conn.createStatement().execute(ddl); |
| conn.close(); |
| } |
| |
| @Test |
| public void testIndexDeleteOptimizationWithLocalIndex() throws Exception { |
| String dataTableName = generateUniqueName(); |
| String indexTableName = generateUniqueName(); |
| createBaseTable(dataTableName, null, null, false); |
| // create a local index that only covers k3 |
| createIndex(indexTableName+"L", dataTableName, "k3", null, true); |
| // create a gloval index covering v1, and k3 |
| createIndex(indexTableName+"G", dataTableName, "v1", "k3", false); |
| |
| String query = "DELETE FROM " + dataTableName + " where k3 < 100"; |
| try (Connection conn1 = DriverManager.getConnection(getUrl())) { |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values(TO_CHAR(rand()*100),rand()*10000,rand()*10000,rand()*10000,TO_CHAR(rand()*100))"); |
| for (int i=0; i<16; i++) { |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " SELECT TO_CHAR(rand()*100),rand()*10000,rand()*10000,rand()*10000,TO_CHAR(rand()*100) FROM " + dataTableName); |
| } |
| ResultSet rs = conn1.createStatement().executeQuery("EXPLAIN "+ query); |
| String expected = |
| "DELETE ROWS CLIENT SELECT\n" + |
| "CLIENT PARALLEL 1-WAY RANGE SCAN OVER " + |
| indexTableName+"L" + "(" + dataTableName + ") [1,*] - [1,100]\n" + |
| " SERVER FILTER BY FIRST KEY ONLY\n" + |
| "CLIENT MERGE SORT"; |
| String actual = QueryUtil.getExplainPlan(rs); |
| assertEquals(expected, actual); |
| rs = conn1.createStatement().executeQuery("SELECT COUNT(*) FROM " + dataTableName); |
| rs.next(); |
| int count = rs.getInt(1); |
| int deleted = conn1.createStatement().executeUpdate(query); |
| int expectedCount = count - deleted; |
| |
| rs = conn1.createStatement().executeQuery("SELECT COUNT(*) FROM " + dataTableName); |
| rs.next(); |
| count = rs.getInt(1); |
| assertEquals(expectedCount, count); |
| |
| rs = conn1.createStatement().executeQuery("SELECT COUNT(*) FROM " + indexTableName+"L"); |
| rs.next(); |
| count = rs.getInt(1); |
| assertEquals(expectedCount, count); |
| |
| rs = conn1.createStatement().executeQuery("SELECT COUNT(*) FROM " + indexTableName+"G"); |
| rs.next(); |
| count = rs.getInt(1); |
| assertEquals(expectedCount, count); |
| } |
| } |
| |
| @Test |
| public void testGlobalIndexOptimization() throws Exception { |
| String dataTableName = generateUniqueName(); |
| String indexTableName = generateUniqueName(); |
| String dataTableFullName = SchemaUtil.getTableName("", dataTableName); |
| testOptimization(dataTableName, dataTableFullName, indexTableName, 4); |
| } |
| |
| @Test |
| public void testGlobalIndexOptimizationWithSalting() throws Exception { |
| String dataTableName = generateUniqueName(); |
| String indexTableName = generateUniqueName(); |
| String dataTableFullName = SchemaUtil.getTableName("", dataTableName); |
| testOptimization(dataTableName, dataTableFullName, indexTableName, 4); |
| |
| } |
| |
| @Test |
| public void testGlobalIndexOptimizationTenantSpecific() throws Exception { |
| String dataTableName = generateUniqueName(); |
| String indexTableName = generateUniqueName(); |
| testOptimizationTenantSpecific(dataTableName, indexTableName, null); |
| } |
| |
| @Test |
| public void testGlobalIndexOptimizationWithSaltingTenantSpecific() throws Exception { |
| String dataTableName = generateUniqueName(); |
| String indexTableName = generateUniqueName(); |
| testOptimizationTenantSpecific(dataTableName, indexTableName, 4); |
| } |
| |
| private void testOptimization(String dataTableName, String dataTableFullName, String indexTableName, Integer saltBuckets) throws Exception { |
| |
| createBaseTable(dataTableName, saltBuckets, "('e','i','o')", false); |
| Connection conn1 = DriverManager.getConnection(getUrl()); |
| try{ |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('b',1,2,4,'z')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('f',1,2,3,'a')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('j',2,4,2,'a')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('q',3,1,1,'c')"); |
| conn1.commit(); |
| createIndex(indexTableName, dataTableName, "v1", null, false); |
| |
| String query = "SELECT /*+ INDEX(" + dataTableName + " " + indexTableName + ")*/ * FROM " + dataTableName +" where v1='a'"; |
| ResultSet rs = conn1.createStatement().executeQuery("EXPLAIN "+ query); |
| |
| |
| |
| String expected = |
| "CLIENT PARALLEL 1-WAY RANGE SCAN OVER " + indexTableName + " ['a']\n" + |
| " SERVER MERGE [0.K3]\n" + |
| " SERVER FILTER BY FIRST KEY ONLY"; |
| String actual = QueryUtil.getExplainPlan(rs); |
| assertTrue("Expected:\n" + expected + "\nbut got\n" + actual, |
| actual.equals(expected)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(3, rs.getInt("k3")); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertEquals(2, rs.getInt("k3")); |
| assertFalse(rs.next()); |
| |
| query = "SELECT /*+ INDEX(" + dataTableName + " " + indexTableName + ")*/ * FROM " + dataTableName +" where v1='a'"; |
| rs = conn1.createStatement().executeQuery("EXPLAIN "+ query); |
| |
| expected = |
| "CLIENT PARALLEL 1-WAY RANGE SCAN OVER " + indexTableName + " ['a']\n" + |
| " SERVER MERGE [0.K3]\n" + |
| " SERVER FILTER BY FIRST KEY ONLY"; |
| actual = QueryUtil.getExplainPlan(rs); |
| assertTrue("Expected:\n" + expected + "\nbut got\n" + actual, |
| actual.equals(expected)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(3, rs.getInt("k3")); |
| assertEquals("a", rs.getString("v1")); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertEquals(2, rs.getInt("k3")); |
| assertEquals("a", rs.getString("v1")); |
| assertFalse(rs.next()); |
| |
| query = "SELECT /*+ INDEX(" + dataTableName + " " + indexTableName + ")*/ * FROM " + dataTableName +" where v1='a' limit 1"; |
| rs = conn1.createStatement().executeQuery("EXPLAIN "+ query); |
| |
| expected = |
| "CLIENT SERIAL 1-WAY RANGE SCAN OVER " + indexTableName + " ['a']\n" + |
| " SERVER MERGE [0.K3]\n" + |
| " SERVER FILTER BY FIRST KEY ONLY\n" + |
| " SERVER 1 ROW LIMIT\n" + |
| "CLIENT 1 ROW LIMIT"; |
| actual = QueryUtil.getExplainPlan(rs); |
| assertTrue("Expected:\n" + expected + "\nbut got\n" + actual, |
| actual.equals(expected)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(3, rs.getInt("k3")); |
| assertEquals("a", rs.getString("v1")); |
| assertFalse(rs.next()); |
| |
| query = "SELECT /*+ INDEX(" + dataTableName + " " + indexTableName + ")*/ t_id, k1, k2, k3, V1 from " + dataTableFullName + " where v1<='z' and k3 > 1 order by V1,t_id"; |
| rs = conn1.createStatement().executeQuery("EXPLAIN " + query); |
| |
| expected = |
| "CLIENT PARALLEL 1-WAY RANGE SCAN OVER " + indexTableName + " [*] - ['z']\n"+ |
| " SERVER MERGE [0.K3]\n" + |
| " SERVER FILTER BY FIRST KEY ONLY AND \"K3\" > 1"; |
| actual = QueryUtil.getExplainPlan(rs); |
| assertTrue("Expected:\n" + expected + "\nbut got\n" + actual, actual.equals(expected)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(3, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertEquals(2, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("b", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(4, rs.getInt("k3")); |
| assertEquals("z", rs.getString("V1")); |
| assertFalse(rs.next()); |
| |
| //Same as above, but with SKIP-SCAN-JOIN hint |
| query = "SELECT /*+ INDEX(" + dataTableName + " " + indexTableName + "), NO_INDEX_SERVER_MERGE */ t_id, k1, k2, k3, V1 from " + dataTableFullName + " where v1<='z' and k3 > 1 order by V1,t_id"; |
| rs = conn1.createStatement().executeQuery("EXPLAIN " + query); |
| expected = |
| "CLIENT PARALLEL 1-WAY FULL SCAN OVER " + dataTableName + "\n" |
| + " SERVER FILTER BY K3 > 1\n" |
| + " SERVER SORTED BY \\[" + dataTableName + "\\.V1, " + dataTableName + "\\.T_ID\\]\n" |
| + "CLIENT MERGE SORT\n" |
| + " SKIP-SCAN-JOIN TABLE 0\n" |
| + " CLIENT PARALLEL 1-WAY RANGE SCAN OVER " + indexTableName + " \\[\\*\\] - \\['z'\\]\n" |
| + " SERVER FILTER BY FIRST KEY ONLY\n" |
| + " DYNAMIC SERVER FILTER BY \\(\"" + dataTableName + "\\.T_ID\", \"" + dataTableName + "\\.K1\", \"" + dataTableName + "\\.K2\"\\) IN \\(\\(\\$\\d+\\.\\$\\d+, \\$\\d+\\.\\$\\d+, \\$\\d+\\.\\$\\d+\\)\\)"; |
| actual = QueryUtil.getExplainPlan(rs); |
| assertTrue("Expected:\n" + expected + "\nbut got\n" + actual, Pattern.matches(expected, actual)); |
| |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(3, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertEquals(2, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("b", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(4, rs.getInt("k3")); |
| assertEquals("z", rs.getString("V1")); |
| assertFalse(rs.next()); |
| |
| query = "SELECT /*+ INDEX(" + dataTableName + " " + indexTableName + ")*/ t_id, V1, k3 from " + dataTableFullName + " where v1 <='z' group by v1,t_id, k3"; |
| rs = conn1.createStatement().executeQuery("EXPLAIN " + query); |
| expected = |
| "CLIENT PARALLEL 1-WAY RANGE SCAN OVER " + indexTableName + " [*] - ['z']\n"+ |
| " SERVER MERGE [0.K3]\n" + |
| " SERVER FILTER BY FIRST KEY ONLY\n" + |
| " SERVER AGGREGATE INTO DISTINCT ROWS BY [\"V1\", \"T_ID\", \"K3\"]\n"+ |
| "CLIENT MERGE SORT"; |
| |
| actual = QueryUtil.getExplainPlan(rs); |
| assertTrue("Expected:\n" + expected + "\nbut got\n" + actual, actual.equals(expected)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(3, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("q", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k3")); |
| assertEquals("c", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("b", rs.getString("t_id"));; |
| assertEquals(4, rs.getInt("k3")); |
| assertEquals("z", rs.getString("V1")); |
| assertFalse(rs.next()); |
| |
| query = "SELECT /*+ INDEX(" + dataTableName + " " + indexTableName + ")*/ v1,sum(k3) from " + dataTableFullName + " where v1 <='z' group by v1 order by v1"; |
| |
| rs = conn1.createStatement().executeQuery("EXPLAIN " + query); |
| expected = |
| "CLIENT PARALLEL 1-WAY RANGE SCAN OVER " + indexTableName + " [*] - ['z']\n"+ |
| " SERVER MERGE [0.K3]\n" + |
| " SERVER FILTER BY FIRST KEY ONLY\n" + |
| " SERVER AGGREGATE INTO ORDERED DISTINCT ROWS BY [\"V1\"]"; |
| actual = QueryUtil.getExplainPlan(rs); |
| assertTrue("Expected:\n" + expected + "\nbut got\n" + actual, actual.equals(expected)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("a", rs.getString(1)); |
| assertEquals(5, rs.getInt(2)); |
| assertTrue(rs.next()); |
| assertEquals("c", rs.getString(1)); |
| assertEquals(1, rs.getInt(2)); |
| assertTrue(rs.next()); |
| assertEquals("z", rs.getString(1)); |
| assertEquals(4, rs.getInt(2)); |
| } finally { |
| conn1.close(); |
| } |
| } |
| |
| private void testOptimizationTenantSpecific(String dataTableName, String indexTableName, Integer saltBuckets) throws Exception { |
| createBaseTable(dataTableName, saltBuckets, "('e','i','o')", true); |
| Connection conn1 = DriverManager.getConnection(getUrl() + ';' + PhoenixRuntime.TENANT_ID_ATTRIB + "=tid1"); |
| try{ |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values(1,2,4,'z')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values(1,2,3,'a')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values(2,4,2,'a')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values(3,1,1,'c')"); |
| conn1.commit(); |
| createIndex(indexTableName, dataTableName, "v1", null, false); |
| |
| String query = "SELECT /*+ INDEX(" + dataTableName + " " + indexTableName + ")*/ k1,k2,k3,v1 FROM " + dataTableName +" where v1='a'"; |
| ResultSet rs = conn1.createStatement().executeQuery("EXPLAIN "+ query); |
| |
| String actual = QueryUtil.getExplainPlan(rs); |
| String expected = "CLIENT PARALLEL 1-WAY RANGE SCAN OVER " + indexTableName + " ['tid1','a']\n" + |
| " SERVER MERGE [0.K3]\n" + |
| " SERVER FILTER BY FIRST KEY ONLY"; |
| assertTrue("Expected:\n" + expected + "\nbut got\n" + actual, actual.equals(expected)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(3, rs.getInt("k3")); |
| assertEquals("a", rs.getString("v1")); |
| assertTrue(rs.next()); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertEquals(2, rs.getInt("k3")); |
| assertEquals("a", rs.getString("v1")); |
| assertFalse(rs.next()); |
| } finally { |
| conn1.close(); |
| } |
| } |
| |
| @Test |
| public void testGlobalIndexOptimizationOnSharedIndex() throws Exception { |
| String dataTableName = generateUniqueName(); |
| createBaseTable(dataTableName, null, "('e','i','o')", false); |
| Connection conn1 = DriverManager.getConnection(getUrl()); |
| String viewName = generateUniqueName(); |
| String indexOnDataTable = generateUniqueName(); |
| try{ |
| conn1.createStatement().execute("CREATE INDEX " + indexOnDataTable + " ON " + dataTableName + "(k2,k1) INCLUDE (v1)"); |
| conn1.createStatement().execute("CREATE VIEW " + viewName + " AS SELECT * FROM " + dataTableName + " WHERE v1 = 'a'"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('b',1,2,4,'z')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('f',1,2,3,'a')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('j',2,4,2,'a')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('q',3,1,1,'c')"); |
| conn1.commit(); |
| ResultSet rs = conn1.createStatement().executeQuery("SELECT COUNT(*) FROM " + viewName); |
| assertTrue(rs.next()); |
| assertEquals(2, rs.getInt(1)); |
| assertFalse(rs.next()); |
| String viewIndex = generateUniqueName(); |
| conn1.createStatement().execute("CREATE INDEX " + viewIndex + " ON " + viewName + " (k1)"); |
| |
| String query = "SELECT /*+ INDEX(" + viewName + " " + viewIndex + ")*/ t_id,k1,k2,k3,v1 FROM " + viewName + " where k1 IN (1,2) and k2 IN (3,4)"; |
| rs = conn1.createStatement().executeQuery("EXPLAIN "+ query); |
| |
| /** |
| * This inner "_IDX_" + dataTableName use skipScan, and all the whereExpressions are already in SkipScanFilter, |
| * so there is no other RowKeyComparisonFilter needed. |
| */ |
| |
| String actual = QueryUtil.getExplainPlan(rs); |
| String expected = |
| "CLIENT PARALLEL 1-WAY SKIP SCAN ON 2 KEYS OVER _IDX_" + dataTableName + |
| " [" + Short.MIN_VALUE + ",1] - [" + Short.MIN_VALUE + ",2]\n" + |
| " SERVER MERGE [0.K3]\n" + |
| " SERVER FILTER BY FIRST KEY ONLY"; |
| |
| assertEquals(expected,actual); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertEquals(2, rs.getInt("k3")); |
| assertEquals("a", rs.getString(5)); //TODO use name v1 instead of position 5, see PHOENIX-6644 |
| assertFalse(rs.next()); |
| } finally { |
| conn1.close(); |
| } |
| } |
| |
| @Test |
| public void testNoGlobalIndexOptimization() throws Exception { |
| String dataTableName = generateUniqueName(); |
| String indexTableName = generateUniqueName(); |
| String dataTableFullName = SchemaUtil.getTableName("", dataTableName); |
| createBaseTable(dataTableName, null, "('e','i','o')", false); |
| Connection conn1 = DriverManager.getConnection(getUrl()); |
| try{ |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('b',1,2,4,'z')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('f',1,2,3,'a')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('j',2,4,2,'a')"); |
| conn1.createStatement().execute("UPSERT INTO " + dataTableName + " values('q',3,1,1,'c')"); |
| conn1.commit(); |
| conn1.createStatement().execute("CREATE INDEX " + indexTableName + " ON " + dataTableName + "(v1)"); |
| |
| // All columns available in index |
| String query = "SELECT /*+ INDEX(" + dataTableName + " " + indexTableName + ")*/ t_id, k1, k2, V1 FROM " + dataTableName +" where v1='a'"; |
| ResultSet rs = conn1.createStatement().executeQuery("EXPLAIN "+ query); |
| |
| assertEquals( |
| "CLIENT PARALLEL 1-WAY RANGE SCAN OVER " + indexTableName + " ['a']\n" |
| + " SERVER FILTER BY FIRST KEY ONLY", |
| QueryUtil.getExplainPlan(rs)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertFalse(rs.next()); |
| |
| // No INDEX hint specified |
| query = "SELECT t_id, k1, k2, k3, V1 FROM " + dataTableName +" where v1='a'"; |
| rs = conn1.createStatement().executeQuery("EXPLAIN "+ query); |
| |
| assertEquals( |
| "CLIENT PARALLEL 1-WAY FULL SCAN OVER " + dataTableName + "\n" + |
| " SERVER FILTER BY V1 = 'a'", |
| QueryUtil.getExplainPlan(rs)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(3, rs.getInt("k3")); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertEquals(2, rs.getInt("k3")); |
| assertFalse(rs.next()); |
| |
| // No where clause |
| query = "SELECT t_id, k1, k2, k3, V1 from " + dataTableFullName + " order by V1,t_id"; |
| rs = conn1.createStatement().executeQuery("EXPLAIN " + query); |
| |
| assertEquals( |
| "CLIENT PARALLEL 4-WAY FULL SCAN OVER " + dataTableName + "\n" + |
| " SERVER SORTED BY [V1, T_ID]\n" + |
| "CLIENT MERGE SORT", |
| QueryUtil.getExplainPlan(rs)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(3, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertEquals(2, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("q", rs.getString("t_id")); |
| assertEquals(3, rs.getInt("k1")); |
| assertEquals(1, rs.getInt("k2")); |
| assertEquals(1, rs.getInt("k3")); |
| assertEquals("c", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("b", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(4, rs.getInt("k3")); |
| assertEquals("z", rs.getString("V1")); |
| assertFalse(rs.next()); |
| |
| // No where clause in index scan |
| query = "SELECT t_id, k1, k2, k3, V1 from " + dataTableFullName + " where k3 > 1 order by V1,t_id"; |
| rs = conn1.createStatement().executeQuery("EXPLAIN " + query); |
| |
| assertEquals( |
| "CLIENT PARALLEL 4-WAY FULL SCAN OVER " + dataTableName + "\n" + |
| " SERVER FILTER BY K3 > 1\n" + |
| " SERVER SORTED BY [V1, T_ID]\n" + |
| "CLIENT MERGE SORT", |
| QueryUtil.getExplainPlan(rs)); |
| |
| rs = conn1.createStatement().executeQuery(query); |
| assertTrue(rs.next()); |
| assertEquals("f", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(3, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("j", rs.getString("t_id")); |
| assertEquals(2, rs.getInt("k1")); |
| assertEquals(4, rs.getInt("k2")); |
| assertEquals(2, rs.getInt("k3")); |
| assertEquals("a", rs.getString("V1")); |
| assertTrue(rs.next()); |
| assertEquals("b", rs.getString("t_id")); |
| assertEquals(1, rs.getInt("k1")); |
| assertEquals(2, rs.getInt("k2")); |
| assertEquals(4, rs.getInt("k3")); |
| assertEquals("z", rs.getString("V1")); |
| assertFalse(rs.next()); |
| } finally { |
| conn1.close(); |
| } |
| } |
| |
| } |
