Github user twdsilva commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/335#discussion_r214093851
--- Diff:
phoenix-core/src/it/java/org/apache/phoenix/end2end/ProjectArrayElemAfterHashJoinIT.java
---
@@ -0,0 +1,179 @@
+/*
+ * 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.util.TestUtil.TEST_PROPERTIES;
+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.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.Statement;
+import java.util.Properties;
+
+import org.apache.phoenix.util.PropertiesUtil;
+import org.apache.phoenix.util.QueryUtil;
+import org.junit.Test;
+
+public class ProjectArrayElemAfterHashJoinIT extends
ParallelStatsDisabledIT {
+
+ @Test
+ public void testSalted() throws Exception {
+
+ Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES);
+ Connection conn = DriverManager.getConnection(getUrl(), props);
+
+ try {
+ String table = createSalted(conn);
+ testTable(conn, table);
+ } finally {
+ conn.close();
+ }
+ }
+
+ @Test
+ public void testUnsalted() throws Exception {
+
+ Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES);
+ Connection conn = DriverManager.getConnection(getUrl(), props);
+
+ try {
+ String table = createUnsalted(conn);
+ testTable(conn, table);
+ } finally {
+ conn.close();
+ }
+ }
+
+ private void testTable(Connection conn, String table) throws Exception
{
+
+ verifyExplain(conn, table, false, false);
+ verifyExplain(conn, table, false, true);
+ verifyExplain(conn, table, true, false);
+ verifyExplain(conn, table, true, true);
+
+ verifyResults(conn, table, false, false);
+ verifyResults(conn, table, false, true);
+ verifyResults(conn, table, true, false);
+ verifyResults(conn, table, true, true);
+
+ dropTable(conn, table);
+ }
+
+ private String createSalted(Connection conn) throws Exception {
+
+ String table = "SALTED_" + generateUniqueName();
+ String create = "CREATE TABLE " + table + " ("
+ + " id INTEGER NOT NULL,"
+ + " vals TINYINT[],"
+ + " CONSTRAINT pk PRIMARY KEY (id)"
+ + ") SALT_BUCKETS = 4";
+
+ conn.createStatement().execute(create);
+ return table;
+ }
+
+ private String createUnsalted(Connection conn) throws Exception {
+
+ String table = "UNSALTED_" + generateUniqueName();
+ String create = "CREATE TABLE " + table + " ("
+ + " id INTEGER NOT NULL,"
+ + " vals TINYINT[],"
+ + " CONSTRAINT pk PRIMARY KEY (id)"
+ + ")";
+
+ conn.createStatement().execute(create);
+ return table;
+ }
+
+ private String getQuery(String table, boolean fullArray, boolean
hashJoin) {
+
+ String query = "SELECT id, vals[1] v1, vals[2] v2, vals[3] v3,
vals[4] v4"
+ + (fullArray ? ", vals" : "")
+ + " FROM " + table
+ + " WHERE id IN "
+ + (hashJoin ? "(SELECT 1)" : "(1, 2, 3)")
+ ;
+
+ return query;
+ }
+
+ private void verifyExplain(Connection conn, String table, boolean
fullArray, boolean hashJoin)
+ throws Exception {
+
+ String query = "EXPLAIN " + getQuery(table, fullArray, hashJoin);
+ Statement stmt = conn.createStatement();
+ ResultSet rs = stmt.executeQuery(query);
+
+ try {
+ String plan = QueryUtil.getExplainPlan(rs);
+ assertTrue(plan != null);
+ assertTrue(fullArray || plan.contains("SERVER ARRAY ELEMENT
PROJECTION"));
+ assertTrue(hashJoin == plan.contains("JOIN"));
+ } finally {
+ rs.close();
+ }
+ }
+
+ private void verifyResults(Connection conn, String table, boolean
fullArray, boolean hashJoin)
+ throws Exception {
+
+ String upsert = "UPSERT INTO " + table + "(id, vals)"
+ + " VALUES(1, ARRAY[10, 20, 30, 40, 50])";
+ PreparedStatement upsertStmt = conn.prepareStatement(upsert);
+ upsertStmt.execute();
+ conn.commit();
+
+ String query = getQuery(table, fullArray, hashJoin);
+ Statement stmt = conn.createStatement();
+ ResultSet rs = stmt.executeQuery(query);
+
+ try {
+ assertTrue(rs.next());
+ assertEquals(1, rs.getInt("id"));
+ assertEquals(10, rs.getInt("v1"));
+ assertEquals(20, rs.getInt("v2"));
+ assertEquals(30, rs.getInt("v3"));
+ assertEquals(40, rs.getInt("v4"));
+
+ if (fullArray) {
+ java.sql.Array array = rs.getArray("vals");
+ assertTrue(array != null);
+ Object obj = array.getArray();
+ assertTrue(obj != null);
+ assertTrue(obj.getClass().isArray());
+ assertEquals(5, java.lang.reflect.Array.getLength(obj));
+ }
+
+ assertFalse(rs.next());
+ } finally {
+ rs.close();
+ }
+ }
+
+ private void dropTable(Connection conn, String table) throws Exception
{
--- End diff --
No need to drop table since you are creating creating table with unique
names.
---
