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Posted to issues@phoenix.apache.org by GitBox <gi...@apache.org> on 2019/04/12 21:36:57 UTC
[GitHub] [phoenix] tricolor2 commented on a change in pull request #440:
PHOENIX-4311: Unnest Support
tricolor2 commented on a change in pull request #440: PHOENIX-4311: Unnest Support
URL: https://github.com/apache/phoenix/pull/440#discussion_r275071694
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File path: phoenix-core/src/it/java/org/apache/phoenix/end2end/Unnest2IT.java
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@@ -0,0 +1,293 @@
+/*
+ * 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 junit.framework.TestCase.assertTrue;
+import static org.apache.phoenix.query.BaseTest.generateUniqueName;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+import java.sql.Array;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Properties;
+import org.apache.phoenix.query.BaseTest;
+import org.junit.Test;
+
+public class Unnest2IT extends ParallelStatsDisabledIT{
+ protected static String createTableWithArray(String url, byte[][] bs, Object object) throws
+ SQLException {
+ String tableName = generateUniqueName();
+ String ddlStmt = "create table "
+ + tableName
+ + " (id char(15) not null, \n"
+ + " a_int integer,\n"
+ + " a_double_array double array,\n"
+ + " a_varchar_array varchar(100) array,\n"
+ + " CONSTRAINT pk PRIMARY KEY (id)\n"
+ + ")";
+ BaseTest.createTestTable(url, ddlStmt, bs, null);
+ return tableName;
+ }
+ protected static void initTablesWithArrays(String tableName, String tennantId, String url) throws Exception{
+ Properties props = new Properties();
+ String query =
+ "upsert into " + tableName + "("
+ + " id, "
+ + " a_int, "
+ + " a_double_array, "
+ + " a_varchar_array) "
+ + "VALUES (?, ?, ?, ?)";
+
+ try(Connection conn = DriverManager.getConnection(url, props)) {
+ PreparedStatement stmt = conn.prepareStatement(query);
+ stmt.setString(1,"N0001");
+ stmt.setInt(2,35);
+ Double[] doubleArray = {24d,34d,98d,29d};
+ Array array = conn.createArrayOf("DOUBLE",doubleArray);
+ stmt.setArray(3,array);
+ String[] strArray = {"XX","YYY","BBB","DDD","XX","WWW"};
+ array = conn.createArrayOf("VARCHAR",strArray);
+ stmt.setArray(4,array);
+ stmt.execute();
+ conn.commit();
+ stmt = conn.prepareStatement(query);
+ stmt.setString(1,"N0002");
+ stmt.setInt(2,74);
+ doubleArray = new Double[]{22d,77d,25d,26d};
+ array = conn.createArrayOf("DOUBLE",doubleArray);
+ stmt.setArray(3,array);
+ strArray = new String[]{"YYY","XX","XX","YYY","XX"};
+ array = conn.createArrayOf("VARCHAR",strArray);
+ stmt.setArray(4,array);
+ stmt.execute();
+ conn.commit();
+ }
+ }
+
+ @Test
+ public void testCountUnnestGroupByUnnest() throws Exception{
+ Properties props = new Properties();
+ String tenantId = getOrganizationId();
+ String tableName = createTableWithArray(getUrl(),
+ getDefaultSplits(tenantId), null);
+ initTablesWithArrays(tableName, tenantId, getUrl());
+ try(Connection conn = DriverManager.getConnection(url, props)){
+ String query =
+ "SELECT COUNT(id) AS A,UNNEST(a_varchar_array) AS B\n"
+ + "FROM " + tableName +"\n"
+ + "GROUP BY B";
+ PreparedStatement stmt = conn.prepareStatement(query);
+ ResultSet rs = stmt.executeQuery();
+ assertTrue(rs.next());
+ //System.out.println(rs.get);
+ assertEquals(1,rs.getInt("A"));
+ assertEquals("BBB",rs.getString("B"));
+ assertTrue(rs.next());
+ assertEquals(1,rs.getInt("A"));
+ assertEquals("DDD",rs.getString("B"));
+ assertTrue(rs.next());
+ assertEquals(1,rs.getInt("A"));
+ assertEquals("WWW",rs.getString("B"));
+ assertTrue(rs.next());
+ assertEquals(5,rs.getInt("A"));
+ assertEquals("XX",rs.getString("B"));
+ assertTrue(rs.next());
+ assertEquals(3,rs.getInt("A"));
+ assertEquals("YYY",rs.getString("B"));
+ assertFalse(rs.next());
+ }
+ }
+
+ @Test
+ public void testCountUnnestGroupByUnnestOrderByUnnest() throws Exception{
+ Properties props = new Properties();
+ String tenantId = getOrganizationId();
+ String tableName = createTableWithArray(getUrl(),
+ getDefaultSplits(tenantId), null);
+ initTablesWithArrays(tableName, tenantId, getUrl());
+ try(Connection conn = DriverManager.getConnection(url, props)){
+ String query = "SELECT COUNT(1) AS A,UNNEST(a_varchar_array) AS B\n"
+ + "FROM " + tableName + "\n"
+ + "GROUP BY B\n"
+ + "ORDER BY B";
+ PreparedStatement stmt = conn.prepareStatement(query);
+ ResultSet rs = stmt.executeQuery();
+ assertTrue(rs.next());
+ assertEquals(1,rs.getInt("A"));
+ assertEquals("BBB",rs.getString("B"));
+ assertTrue(rs.next());
+ assertEquals(1,rs.getInt("A"));
+ assertEquals("DDD",rs.getString("B"));
+ assertTrue(rs.next());
+ assertEquals(1,rs.getInt("A"));
+ assertEquals("WWW",rs.getString("B"));
+ assertTrue(rs.next());
+ assertEquals(5,rs.getInt("A"));
+ assertEquals("XX",rs.getString("B"));
+ assertTrue(rs.next());
+ assertEquals(3,rs.getInt("A"));
+ assertEquals("YYY",rs.getString("B"));
+ assertFalse(rs.next());
+ }
+ }
+ @Test
+ public void testCountUnnestGroupByUnnestHavingCountUnnest() throws Exception{
+ Properties props = new Properties();
+ String tenantId = getOrganizationId();
+ String tableName = createTableWithArray(getUrl(),
+ getDefaultSplits(tenantId), null);
+ initTablesWithArrays(tableName, tenantId, getUrl());
+ try(Connection conn = DriverManager.getConnection(url, props)){
+ String query =
+ "SELECT COUNT(UNNEST(a_varchar_array)) AS A, UNNEST(a_varchar_array) AS B\n"
+ + "FROM " + tableName +"\n"
+ + "GROUP BY B\n"
+ + "HAVING COUNT(UNNEST(a_varchar_array)) > 2";
+ PreparedStatement stmt = conn.prepareStatement(query);
+ ResultSet rs = stmt.executeQuery();
+ assertTrue(rs.next());
+ assertEquals(5,rs.getInt("A"));
+ assertEquals("XX",rs.getString("B"));
+ assertTrue(rs.next());
+ assertEquals(3,rs.getInt("A"));
+ assertEquals("YYY",rs.getString("B"));
+ assertFalse(rs.next());
+ }
+ }
+
+ @Test
+ public void testUnnestOnDynamicColumn()throws Exception{
+ Properties props = new Properties();
+ String tenantId = getOrganizationId();
+ String tableName = createTableWithArray(getUrl(),
+ getDefaultSplits(tenantId), null);
+ initTablesWithArrays(tableName, tenantId, getUrl());
+
+ try(Connection conn = DriverManager.getConnection(url, props)){
+ String query =
+ "UPSERT INTO " + tableName + "(id, b_varchar_array VARCHAR(100) ARRAY) "
+ + "VALUES('qwert', ARRAY['dd','ee','ff'])";
+ PreparedStatement stmt = conn.prepareStatement(query);
+ stmt.execute();
+ conn.commit();
+ query = "SELECT UNNEST(b_varchar_array) AS A FROM " + tableName + "(b_varchar_array VARCHAR(100) ARRAY)";
Review comment:
When you want to access a dynamic column you must specify it after the table name with it's type.
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