| /* |
| * 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.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| |
| 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.sql.Types; |
| |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| |
| @Category(ParallelStatsDisabledTest.class) |
| public class RegexpSplitFunctionIT extends ParallelStatsDisabledIT { |
| |
| private String tableName; |
| |
| private void initTable(Connection conn, String val) throws SQLException { |
| initTable(conn, val, ","); |
| } |
| |
| private void initTable(Connection conn, String val, String separator) throws SQLException { |
| tableName = generateUniqueName(); |
| String ddl = "CREATE TABLE " + tableName + " (" + |
| "ID INTEGER NOT NULL PRIMARY KEY," + |
| "VAL VARCHAR," + |
| "SEP VARCHAR," + |
| "ARR VARCHAR ARRAY)"; |
| conn.createStatement().execute(ddl); |
| String dml = "UPSERT INTO " + tableName + " (ID, SEP, VAL) VALUES (?, ?, ?)"; |
| PreparedStatement stmt = conn.prepareStatement(dml); |
| stmt.setInt(1, 1); |
| if (separator == null) { |
| stmt.setNull(2, Types.VARCHAR); |
| } else { |
| stmt.setString(2, separator); |
| } |
| if (val == null) { |
| stmt.setNull(3, Types.VARCHAR); |
| } else { |
| stmt.setString(3, val); |
| } |
| stmt.execute(); |
| conn.commit(); |
| } |
| |
| @Test |
| public void testSplit_ArrayReference() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "ONE,TWO,THREE"); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT REGEXP_SPLIT(VAL, ',')[1] FROM " + tableName); |
| assertTrue(rs.next()); |
| assertEquals("ONE", rs.getString(1)); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void testArrayLenWithRegExpSplit() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String val = "T"; |
| for(int i = 1; i < Short.MAX_VALUE + 500; i++) { |
| val += ",T"; |
| } |
| |
| initTable(conn, val); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT array_length(REGEXP_SPLIT(VAL, ',')) FROM " + tableName); |
| assertTrue(rs.next()); |
| assertEquals(33267, rs.getInt(1)); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void testSplit_InFilter() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "ONE,TWO,THREE"); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT ID FROM " + tableName + " WHERE (REGEXP_SPLIT(VAL, ','))[1] = 'ONE'"); |
| assertTrue(rs.next()); |
| assertEquals(1, rs.getInt(1)); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void testSplit_Upsert() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "ONE,TWO,THREE"); |
| |
| conn.createStatement().executeUpdate( |
| "UPSERT INTO " + tableName + " (ID, ARR) SELECT ID, " + "REGEXP_SPLIT(VAL, ',') FROM " |
| + tableName); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery("SELECT ARR FROM " + tableName); |
| assertTrue(rs.next()); |
| Array array = rs.getArray(1); |
| String[] values = (String[]) array.getArray(); |
| assertArrayEquals(new String[]{ "ONE", "TWO", "THREE" }, values); |
| } |
| |
| @Test |
| public void testSplit_AlternateSeparator() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "ONE:TWO:THREE"); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT REGEXP_SPLIT(VAL, ':') FROM " + tableName); |
| assertTrue(rs.next()); |
| Array array = rs.getArray(1); |
| String[] values = (String[]) array.getArray(); |
| assertArrayEquals(new String[] { "ONE", "TWO", "THREE" }, values); |
| } |
| |
| @Test |
| public void testSplit_DynamicPattern() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "ONE,TWO,THREE"); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT REGEXP_SPLIT(VAL, SEP) FROM " + tableName); |
| assertTrue(rs.next()); |
| Array array = rs.getArray(1); |
| String[] values = (String[]) array.getArray(); |
| assertArrayEquals(new String[] { "ONE", "TWO", "THREE" }, values); |
| } |
| |
| @Test |
| public void testSplit_NoSplitString() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "CANNOT BE SPLIT"); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT REGEXP_SPLIT(VAL, ',') FROM " + tableName); |
| assertTrue(rs.next()); |
| Array array = rs.getArray(1); |
| String[] values = (String[]) array.getArray(); |
| assertArrayEquals(new String[] { "CANNOT BE SPLIT" }, values); |
| } |
| |
| @Test |
| public void testSplit_PatternBasedSplit() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "ONE!:TWO:::!THREE::!:FOUR"); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT REGEXP_SPLIT(VAL, '[:!]+') FROM " + tableName); |
| assertTrue(rs.next()); |
| Array array = rs.getArray(1); |
| String[] values = (String[]) array.getArray(); |
| assertArrayEquals(new String[] { "ONE", "TWO", "THREE", "FOUR" }, values); |
| } |
| |
| @Test |
| public void testSplit_PatternEscape() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "ONE|TWO|THREE"); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT REGEXP_SPLIT(VAL, '\\\\|') FROM " + tableName); |
| assertTrue(rs.next()); |
| Array array = rs.getArray(1); |
| String[] values = (String[]) array.getArray(); |
| assertArrayEquals(new String[] { "ONE", "TWO", "THREE" }, values); |
| } |
| |
| @Test |
| public void testSplit_NullString() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, null); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT REGEXP_SPLIT(VAL, ',') FROM " + tableName); |
| assertTrue(rs.next()); |
| assertNull(rs.getString(1)); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void testSplit_NullSeparator() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "ONE,TWO,THREE"); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT REGEXP_SPLIT(VAL, NULL) FROM " + tableName); |
| assertTrue(rs.next()); |
| assertNull(rs.getString(1)); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void testSplit_NullDynamicSeparator() throws SQLException { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| initTable(conn, "ONE,TWO,THREE", null); |
| |
| ResultSet rs = conn.createStatement().executeQuery( |
| "SELECT REGEXP_SPLIT(VAL, SEP) FROM " + tableName); |
| assertTrue(rs.next()); |
| assertNull(rs.getString(1)); |
| assertFalse(rs.next()); |
| } |
| |
| } |