| /* |
| * 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.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 org.junit.Test; |
| |
| |
| public class LastValueFunctionIT extends ParallelStatsDisabledIT { |
| |
| @Test |
| public void unsignedLong() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG," |
| + " \"DATE\" DATE, \"value\" UNSIGNED_LONG)"; |
| conn.createStatement().execute(ddl); |
| |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") " |
| + "VALUES (1, 8, TO_DATE('2013-01-01 00:00:00'), 300)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") " |
| + "VALUES (2, 8, TO_DATE('2013-01-01 00:01:00'), 7)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") " |
| + "VALUES (3, 8, TO_DATE('2013-01-01 00:02:00'), 9)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") " |
| + "VALUES (4, 8, TO_DATE('2013-01-01 00:03:00'), 4)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") " |
| + "VALUES (5, 8, TO_DATE('2013-01-01 00:04:00'), 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") " |
| + "VALUES (6, 8, TO_DATE('2013-01-01 00:05:00'), 150)"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(\"value\") WITHIN GROUP (ORDER BY \"DATE\" ASC) FROM " + tableName + " GROUP BY page_id"); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getLong(1), 150); |
| |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void signedInteger() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG, \"DATE\" INTEGER, \"value\" INTEGER)"; |
| conn.createStatement().execute(ddl); |
| |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (5, 8, 5, -255)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (1, 8, 1, 3)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (2, 8, 2, 7)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (3, 8, 3, 9)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (4, 8, 4, 4)"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(\"value\") WITHIN GROUP (ORDER BY \"DATE\" ASC) FROM " + tableName + " GROUP BY page_id" |
| ); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getInt(1), -255); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void unsignedInteger() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG," |
| + " \"DATE\" UNSIGNED_INT, \"value\" UNSIGNED_INT)"; |
| conn.createStatement().execute(ddl); |
| |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (1, 8, 1, 3)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (2, 8, 2, 7)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (3, 8, 3, 9)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (5, 8, 4, 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (4, 8, 5, 4)"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(\"value\") WITHIN GROUP (ORDER BY \"DATE\" ASC) FROM " + tableName + " GROUP BY page_id" |
| ); |
| assertTrue(rs.next()); |
| assertEquals(rs.getInt(1), 4); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void simpleTestDescOrder() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG," |
| + " dates INTEGER, val INTEGER)"; |
| conn.createStatement().execute(ddl); |
| |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (1, 8, 0, 300)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (2, 8, 1, 7)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (3, 8, 2, 9)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (4, 8, 3, 4)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (5, 8, 4, 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (6, 8, 5, 150)"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(val) WITHIN GROUP (ORDER BY dates DESC) FROM " + tableName + " GROUP BY page_id"); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getInt(1), 300); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void simpleTestAscOrder() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG," |
| + " dates INTEGER, val INTEGER)"; |
| conn.createStatement().execute(ddl); |
| |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (1, 8, 0, 300)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (2, 8, 1, 7)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (3, 8, 2, 9)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (4, 8, 3, 4)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (5, 8, 4, 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, dates, val) VALUES (6, 8, 5, 150)"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(val) WITHIN GROUP (ORDER BY dates ASC) FROM " + tableName + " GROUP BY page_id"); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getInt(1), 150); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void charDatatype() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG, " |
| + "\"DATE\" CHAR(3), \"value\" CHAR(3))"; |
| conn.createStatement().execute(ddl); |
| |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (1, 8, '1', '300')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (2, 8, '2', '7')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (3, 8, '3', '9')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (5, 8, '4', '2')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (4, 8, '5', '400')"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(\"value\") WITHIN GROUP (ORDER BY \"DATE\" ASC) FROM " + tableName + " GROUP BY page_id"); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getString(1), "400"); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void varcharVariableLenghtDatatype() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG," |
| + " \"DATE\" VARCHAR, \"value\" VARCHAR)"; |
| conn.createStatement().execute(ddl); |
| |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (1, 8, '1', '3')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (2, 8, '2', '7')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (3, 8, '3', '9')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (5, 8, '4', '2')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (4, 8, '5', '4')"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(\"value\") WITHIN GROUP (ORDER BY \"DATE\" ASC) FROM " + tableName + " GROUP BY page_id"); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getString(1), "4"); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void groupMultipleValues() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG," |
| + " \"DATE\" UNSIGNED_INT, \"value\" UNSIGNED_INT)"; |
| conn.createStatement().execute(ddl); |
| |
| //first page_id |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (1, 8, 1, 3)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (2, 8, 2, 7)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (3, 8, 3, 9)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (5, 8, 4, 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (4, 8, 5, 4)"); |
| |
| //second page_id |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (11, 9, 1, 3)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (12, 9, 2, 7)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (13, 9, 3, 9)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (15, 9, 4, 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (14, 9, 5, 40)"); |
| |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(\"value\") WITHIN GROUP (ORDER BY \"DATE\" ASC) FROM " + tableName + " GROUP BY page_id"); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getInt(1), 4); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getInt(1), 40); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void nullValuesInAggregatingColumns() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG," |
| + " \"DATE\" UNSIGNED_INT, \"value\" UNSIGNED_INT)"; |
| conn.createStatement().execute(ddl); |
| |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (1, 8, 1)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (2, 8, 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (3, 8, 3)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (5, 8, 4)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (4, 8, 5)"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(\"value\") WITHIN GROUP (ORDER BY \"DATE\" ASC) FROM " + tableName + " GROUP BY page_id"); |
| |
| assertTrue(rs.next()); |
| byte[] nothing = rs.getBytes(1); |
| assertTrue(nothing == null); |
| } |
| |
| @Test |
| public void nullValuesInAggregatingColumnsSecond() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_LONG," |
| + " \"DATE\" UNSIGNED_INT, \"value\" UNSIGNED_INT)"; |
| conn.createStatement().execute(ddl); |
| |
| //first page_id |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (1, 8, 1)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (2, 8, 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (3, 8, 3)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (5, 8, 4)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\") VALUES (4, 8, 5)"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(\"value\") WITHIN GROUP (ORDER BY \"DATE\" ASC) FROM " + tableName + " GROUP BY page_id"); |
| |
| assertTrue(rs.next()); |
| byte[] nothing = rs.getBytes(1); |
| assertTrue(nothing == null); |
| } |
| |
| @Test |
| public void inOrderByClausule() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| |
| String ddl = "CREATE TABLE IF NOT EXISTS " + tableName |
| + "(id INTEGER NOT NULL PRIMARY KEY, page_id UNSIGNED_INT," |
| + " \"DATE\" UNSIGNED_INT, \"value\" UNSIGNED_INT)"; |
| conn.createStatement().execute(ddl); |
| |
| //first page |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (1, 8, 1, 3)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (2, 8, 2, 7)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (3, 8, 3, 9)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (5, 8, 4, 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (4, 8, 5, 5)"); |
| |
| //second page |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (5, 2, 1, 3)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (6, 2, 2, 7)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (7, 2, 3, 9)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (8, 2, 4, 2)"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " (id, page_id, \"DATE\", \"value\") VALUES (9, 2, 5, 4)"); |
| |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT LAST_VALUE(\"value\") WITHIN GROUP (ORDER BY \"DATE\" ASC) AS val " |
| + "FROM " + tableName + " GROUP BY page_id ORDER BY val DESC"); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getInt(1), 5); |
| |
| assertTrue(rs.next()); |
| assertEquals(rs.getInt(1), 4); |
| assertFalse(rs.next()); |
| } |
| } |