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TestDuckDBJDBC.java
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package org.duckdb;
import javax.sql.rowset.CachedRowSet;
import javax.sql.rowset.RowSetProvider;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.sql.*;
import java.util.concurrent.Future;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.OffsetTime;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.time.format.ResolverStyle;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Comparator;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.ListIterator;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.TimeZone;
import java.util.UUID;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;
import static java.time.format.DateTimeFormatter.ISO_LOCAL_TIME;
import static java.time.temporal.ChronoField.DAY_OF_MONTH;
import static java.time.temporal.ChronoField.MONTH_OF_YEAR;
import static java.time.temporal.ChronoField.OFFSET_SECONDS;
import static java.time.temporal.ChronoField.YEAR_OF_ERA;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static java.util.Collections.singletonList;
import static org.duckdb.DuckDBDriver.DUCKDB_USER_AGENT_PROPERTY;
import static org.duckdb.DuckDBDriver.JDBC_STREAM_RESULTS;
import static org.duckdb.test.Assertions.assertEquals;
import static org.duckdb.test.Assertions.assertFalse;
import static org.duckdb.test.Assertions.assertNotNull;
import static org.duckdb.test.Assertions.assertNull;
import static org.duckdb.test.Assertions.assertThrows;
import static org.duckdb.test.Assertions.assertThrowsMaybe;
import static org.duckdb.test.Assertions.assertTrue;
import static org.duckdb.test.Assertions.fail;
import static org.duckdb.test.Runner.runTests;
public class TestDuckDBJDBC {
public static final String JDBC_URL = "jdbc:duckdb:";
private static void createTable(Connection conn) throws SQLException {
try (Statement createStmt = conn.createStatement()) {
createStmt.execute("CREATE TABLE foo as select * from range(1000000);");
}
}
private static void executeStatementWithThread(Statement statement, ExecutorService executor_service)
throws InterruptedException {
executor_service.submit(() -> {
try (ResultSet resultSet = statement.executeQuery("SELECT * from foo")) {
assertThrowsMaybe(() -> {
DuckDBResultSet duckdb_result_set = resultSet.unwrap(DuckDBResultSet.class);
while (duckdb_result_set.next()) {
// do nothing with the results
}
}, SQLException.class);
} catch (Exception e) {
System.out.println("Error executing query: " + e.getMessage());
}
});
Thread.sleep(10); // wait for query to start running
try {
statement.cancel();
statement.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
public static void test_connection() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
assertTrue(conn.isValid(0));
assertFalse(conn.isClosed());
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT 42 as a");
assertFalse(stmt.isClosed());
assertFalse(rs.isClosed());
assertTrue(rs.next());
int res = rs.getInt(1);
assertEquals(res, 42);
assertFalse(rs.wasNull());
res = rs.getInt(1);
assertEquals(res, 42);
assertFalse(rs.wasNull());
res = rs.getInt("a");
assertEquals(res, 42);
assertFalse(rs.wasNull());
assertThrows(() -> rs.getInt(0), SQLException.class);
assertThrows(() -> rs.getInt(2), SQLException.class);
assertThrows(() -> rs.getInt("b"), SQLException.class);
assertFalse(rs.next());
assertFalse(rs.next());
rs.close();
rs.close();
assertTrue(rs.isClosed());
assertThrows(() -> rs.getInt(1), SQLException.class);
stmt.close();
stmt.close();
assertTrue(stmt.isClosed());
conn.close();
conn.close();
assertFalse(conn.isValid(0));
assertTrue(conn.isClosed());
assertThrows(conn::createStatement, SQLException.class);
}
public static void test_prepare_exception() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
assertThrows(() -> stmt.execute("this is no SQL;"), SQLException.class);
}
public static void test_execute_exception() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
assertThrows(() -> {
ResultSet rs = stmt.executeQuery("SELECT");
rs.next();
}, SQLException.class);
}
public static void test_autocommit_off() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
ResultSet rs;
conn.setAutoCommit(false);
stmt = conn.createStatement();
stmt.execute("CREATE TABLE t (id INT);");
conn.commit();
stmt.execute("INSERT INTO t (id) VALUES (1);");
stmt.execute("INSERT INTO t (id) VALUES (2);");
stmt.execute("INSERT INTO t (id) VALUES (3);");
conn.commit();
rs = stmt.executeQuery("SELECT COUNT(*) FROM T");
rs.next();
assertEquals(rs.getInt(1), 3);
rs.close();
stmt.execute("INSERT INTO t (id) VALUES (4);");
stmt.execute("INSERT INTO t (id) VALUES (5);");
conn.rollback();
// After the rollback both inserts must be reverted
rs = stmt.executeQuery("SELECT COUNT(*) FROM T");
rs.next();
assertEquals(rs.getInt(1), 3);
stmt.execute("INSERT INTO t (id) VALUES (6);");
stmt.execute("INSERT INTO t (id) VALUES (7);");
conn.setAutoCommit(true);
// Turning auto-commit on triggers a commit
rs = stmt.executeQuery("SELECT COUNT(*) FROM T");
rs.next();
assertEquals(rs.getInt(1), 5);
// This means a rollback must not be possible now
assertThrows(conn::rollback, SQLException.class);
stmt.execute("INSERT INTO t (id) VALUES (8);");
rs = stmt.executeQuery("SELECT COUNT(*) FROM T");
rs.next();
assertEquals(rs.getInt(1), 6);
rs.close();
stmt.close();
conn.close();
}
public static void test_enum() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
ResultSet rs;
// Test 8 bit enum + different access ways
stmt.execute("CREATE TYPE enum_test AS ENUM ('Enum1', 'enum2', '1üöñ');");
stmt.execute("CREATE TABLE t (id INT, e1 enum_test);");
stmt.execute("INSERT INTO t (id, e1) VALUES (1, 'Enum1');");
stmt.execute("INSERT INTO t (id, e1) VALUES (2, 'enum2');");
stmt.execute("INSERT INTO t (id, e1) VALUES (3, '1üöñ');");
PreparedStatement ps = conn.prepareStatement("SELECT e1 FROM t WHERE id = ?");
ps.setObject(1, 1);
rs = ps.executeQuery();
rs.next();
assertTrue(rs.getObject(1, String.class).equals("Enum1"));
assertTrue(rs.getString(1).equals("Enum1"));
assertTrue(rs.getString("e1").equals("Enum1"));
rs.close();
ps.setObject(1, 2);
rs = ps.executeQuery();
rs.next();
assertTrue(rs.getObject(1, String.class).equals("enum2"));
assertTrue(rs.getObject(1).equals("enum2"));
rs.close();
ps.setObject(1, 3);
rs = ps.executeQuery();
rs.next();
assertTrue(rs.getObject(1, String.class).equals("1üöñ"));
assertTrue(rs.getObject(1).equals("1üöñ"));
assertTrue(rs.getObject("e1").equals("1üöñ"));
rs.close();
ps = conn.prepareStatement("SELECT e1 FROM t WHERE e1 = ?");
ps.setObject(1, "1üöñ");
rs = ps.executeQuery();
rs.next();
assertTrue(rs.getObject(1, String.class).equals("1üöñ"));
assertTrue(rs.getString(1).equals("1üöñ"));
assertTrue(rs.getString("e1").equals("1üöñ"));
rs.close();
// Test 16 bit enum
stmt.execute(
"CREATE TYPE enum_long AS ENUM ('enum0' ,'enum1' ,'enum2' ,'enum3' ,'enum4' ,'enum5' ,'enum6'"
+
",'enum7' ,'enum8' ,'enum9' ,'enum10' ,'enum11' ,'enum12' ,'enum13' ,'enum14' ,'enum15' ,'enum16' ,'enum17'"
+
",'enum18' ,'enum19' ,'enum20' ,'enum21' ,'enum22' ,'enum23' ,'enum24' ,'enum25' ,'enum26' ,'enum27' ,'enum28'"
+
",'enum29' ,'enum30' ,'enum31' ,'enum32' ,'enum33' ,'enum34' ,'enum35' ,'enum36' ,'enum37' ,'enum38' ,'enum39'"
+
",'enum40' ,'enum41' ,'enum42' ,'enum43' ,'enum44' ,'enum45' ,'enum46' ,'enum47' ,'enum48' ,'enum49' ,'enum50'"
+
",'enum51' ,'enum52' ,'enum53' ,'enum54' ,'enum55' ,'enum56' ,'enum57' ,'enum58' ,'enum59' ,'enum60' ,'enum61'"
+
",'enum62' ,'enum63' ,'enum64' ,'enum65' ,'enum66' ,'enum67' ,'enum68' ,'enum69' ,'enum70' ,'enum71' ,'enum72'"
+
",'enum73' ,'enum74' ,'enum75' ,'enum76' ,'enum77' ,'enum78' ,'enum79' ,'enum80' ,'enum81' ,'enum82' ,'enum83'"
+
",'enum84' ,'enum85' ,'enum86' ,'enum87' ,'enum88' ,'enum89' ,'enum90' ,'enum91' ,'enum92' ,'enum93' ,'enum94'"
+
",'enum95' ,'enum96' ,'enum97' ,'enum98' ,'enum99' ,'enum100' ,'enum101' ,'enum102' ,'enum103' ,'enum104' "
+
",'enum105' ,'enum106' ,'enum107' ,'enum108' ,'enum109' ,'enum110' ,'enum111' ,'enum112' ,'enum113' ,'enum114'"
+
",'enum115' ,'enum116' ,'enum117' ,'enum118' ,'enum119' ,'enum120' ,'enum121' ,'enum122' ,'enum123' ,'enum124'"
+
",'enum125' ,'enum126' ,'enum127' ,'enum128' ,'enum129' ,'enum130' ,'enum131' ,'enum132' ,'enum133' ,'enum134'"
+
",'enum135' ,'enum136' ,'enum137' ,'enum138' ,'enum139' ,'enum140' ,'enum141' ,'enum142' ,'enum143' ,'enum144'"
+
",'enum145' ,'enum146' ,'enum147' ,'enum148' ,'enum149' ,'enum150' ,'enum151' ,'enum152' ,'enum153' ,'enum154'"
+
",'enum155' ,'enum156' ,'enum157' ,'enum158' ,'enum159' ,'enum160' ,'enum161' ,'enum162' ,'enum163' ,'enum164'"
+
",'enum165' ,'enum166' ,'enum167' ,'enum168' ,'enum169' ,'enum170' ,'enum171' ,'enum172' ,'enum173' ,'enum174'"
+
",'enum175' ,'enum176' ,'enum177' ,'enum178' ,'enum179' ,'enum180' ,'enum181' ,'enum182' ,'enum183' ,'enum184'"
+
",'enum185' ,'enum186' ,'enum187' ,'enum188' ,'enum189' ,'enum190' ,'enum191' ,'enum192' ,'enum193' ,'enum194'"
+
",'enum195' ,'enum196' ,'enum197' ,'enum198' ,'enum199' ,'enum200' ,'enum201' ,'enum202' ,'enum203' ,'enum204'"
+
",'enum205' ,'enum206' ,'enum207' ,'enum208' ,'enum209' ,'enum210' ,'enum211' ,'enum212' ,'enum213' ,'enum214'"
+
",'enum215' ,'enum216' ,'enum217' ,'enum218' ,'enum219' ,'enum220' ,'enum221' ,'enum222' ,'enum223' ,'enum224'"
+
",'enum225' ,'enum226' ,'enum227' ,'enum228' ,'enum229' ,'enum230' ,'enum231' ,'enum232' ,'enum233' ,'enum234'"
+
",'enum235' ,'enum236' ,'enum237' ,'enum238' ,'enum239' ,'enum240' ,'enum241' ,'enum242' ,'enum243' ,'enum244'"
+
",'enum245' ,'enum246' ,'enum247' ,'enum248' ,'enum249' ,'enum250' ,'enum251' ,'enum252' ,'enum253' ,'enum254'"
+
",'enum255' ,'enum256' ,'enum257' ,'enum258' ,'enum259' ,'enum260' ,'enum261' ,'enum262' ,'enum263' ,'enum264'"
+
",'enum265' ,'enum266' ,'enum267' ,'enum268' ,'enum269' ,'enum270' ,'enum271' ,'enum272' ,'enum273' ,'enum274'"
+
",'enum275' ,'enum276' ,'enum277' ,'enum278' ,'enum279' ,'enum280' ,'enum281' ,'enum282' ,'enum283' ,'enum284'"
+
",'enum285' ,'enum286' ,'enum287' ,'enum288' ,'enum289' ,'enum290' ,'enum291' ,'enum292' ,'enum293' ,'enum294'"
+ ",'enum295' ,'enum296' ,'enum297' ,'enum298' ,'enum299');");
stmt.execute("CREATE TABLE t2 (id INT, e1 enum_long);");
stmt.execute("INSERT INTO t2 (id, e1) VALUES (1, 'enum290');");
ps = conn.prepareStatement("SELECT e1 FROM t2 WHERE id = ?");
ps.setObject(1, 1);
rs = ps.executeQuery();
rs.next();
assertTrue(rs.getObject(1, String.class).equals("enum290"));
assertTrue(rs.getString(1).equals("enum290"));
assertTrue(rs.getString("e1").equals("enum290"));
rs.close();
conn.close();
}
public static void test_timestamp_ms() throws Exception {
String expectedString = "2022-08-17 12:11:10.999";
String sql = "SELECT '2022-08-17T12:11:10.999'::TIMESTAMP_MS as ts_ms";
assert_timestamp_match(sql, expectedString, "TIMESTAMP_MS");
}
public static void test_timestamp_ns() throws Exception {
String expectedString = "2022-08-17 12:11:10.999999";
String sql = "SELECT '2022-08-17T12:11:10.999999999'::TIMESTAMP_NS as ts_ns";
assert_timestamp_match(sql, expectedString, "TIMESTAMP_NS");
}
public static void test_timestamp_s() throws Exception {
String expectedString = "2022-08-17 12:11:10";
String sql = "SELECT '2022-08-17T12:11:10'::TIMESTAMP_S as ts_s";
assert_timestamp_match(sql, expectedString, "TIMESTAMP_S");
}
private static void assert_timestamp_match(String fetchSql, String expectedString, String expectedTypeName)
throws Exception {
String originalTzProperty = System.getProperty("user.timezone");
TimeZone originalTz = TimeZone.getDefault();
try {
TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
System.setProperty("user.timezone", "UTC");
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(fetchSql);
assertTrue(rs.next());
Timestamp actual = rs.getTimestamp(1);
Timestamp expected = Timestamp.valueOf(expectedString);
assertEquals(expected.getTime(), actual.getTime());
assertEquals(expected.getNanos(), actual.getNanos());
// Verify calendar variants
Calendar cal = new GregorianCalendar(TimeZone.getTimeZone("America/Los_Angeles"), Locale.US);
Timestamp actual_cal = rs.getTimestamp(1, cal);
assertEquals(expected.getTime(), actual_cal.getTime());
assertEquals(expected.getNanos(), actual_cal.getNanos());
assertEquals(Types.TIMESTAMP, rs.getMetaData().getColumnType(1));
assertEquals(expectedTypeName, rs.getMetaData().getColumnTypeName(1));
rs.close();
stmt.close();
conn.close();
} finally {
TimeZone.setDefault(originalTz);
System.setProperty("user.timezone", originalTzProperty);
}
}
public static void test_timestamp_tz() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
ResultSet rs;
stmt.execute("CREATE TABLE t (id INT, t1 TIMESTAMPTZ)");
stmt.execute("INSERT INTO t (id, t1) VALUES (1, '2022-01-01T12:11:10+02')");
stmt.execute("INSERT INTO t (id, t1) VALUES (2, '2022-01-01T12:11:10Z')");
PreparedStatement ps = conn.prepareStatement("INSERT INTO T (id, t1) VALUES (?, ?)");
OffsetDateTime odt1 = OffsetDateTime.of(2020, 10, 7, 13, 15, 7, 12345, ZoneOffset.ofHours(7));
OffsetDateTime odt1Rounded = OffsetDateTime.of(2020, 10, 7, 13, 15, 7, 12000, ZoneOffset.ofHours(7));
OffsetDateTime odt2 = OffsetDateTime.of(1878, 10, 2, 1, 15, 7, 12345, ZoneOffset.ofHours(-5));
OffsetDateTime odt2Rounded = OffsetDateTime.of(1878, 10, 2, 1, 15, 7, 13000, ZoneOffset.ofHours(-5));
OffsetDateTime odt3 = OffsetDateTime.of(2022, 1, 1, 12, 11, 10, 0, ZoneOffset.ofHours(2));
OffsetDateTime odt4 = OffsetDateTime.of(2022, 1, 1, 12, 11, 10, 0, ZoneOffset.ofHours(0));
OffsetDateTime odt5 = OffsetDateTime.of(1900, 11, 27, 23, 59, 59, 0, ZoneOffset.ofHours(1));
ps.setObject(1, 3);
ps.setObject(2, odt1);
ps.execute();
ps.setObject(1, 4);
ps.setObject(2, odt5, Types.TIMESTAMP_WITH_TIMEZONE);
ps.execute();
ps.setObject(1, 5);
ps.setObject(2, odt2);
ps.execute();
rs = stmt.executeQuery("SELECT * FROM t ORDER BY id");
ResultSetMetaData meta = rs.getMetaData();
rs.next();
assertTrue(rs.getObject(2, OffsetDateTime.class).isEqual(odt3));
rs.next();
assertEquals(rs.getObject(2, OffsetDateTime.class), odt4);
rs.next();
assertTrue(rs.getObject(2, OffsetDateTime.class).isEqual(odt1Rounded));
rs.next();
assertTrue(rs.getObject(2, OffsetDateTime.class).isEqual(odt5));
rs.next();
assertTrue(rs.getObject(2, OffsetDateTime.class).isEqual(odt2Rounded));
assertTrue(((OffsetDateTime) rs.getObject(2)).isEqual(odt2Rounded));
// Metadata tests
assertEquals(
Types.TIMESTAMP_WITH_TIMEZONE,
(meta.unwrap(DuckDBResultSetMetaData.class).type_to_int(DuckDBColumnType.TIMESTAMP_WITH_TIME_ZONE)));
assertTrue(OffsetDateTime.class.getName().equals(meta.getColumnClassName(2)));
rs.close();
stmt.close();
conn.close();
}
public static void test_timestamp_as_long() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
ResultSet rs;
stmt.execute("CREATE TABLE t (id INT, t1 TIMESTAMP)");
stmt.execute("INSERT INTO t (id, t1) VALUES (1, '2022-01-01T12:11:10')");
stmt.execute("INSERT INTO t (id, t1) VALUES (2, '2022-01-01T12:11:11')");
rs = stmt.executeQuery("SELECT * FROM t ORDER BY id");
rs.next();
assertEquals(rs.getLong(2), 1641039070000000L);
rs.next();
assertEquals(rs.getLong(2), 1641039071000000L);
rs.close();
stmt.close();
conn.close();
}
public static void test_timestamptz_as_long() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
ResultSet rs;
stmt.execute("SET CALENDAR='gregorian'");
stmt.execute("SET TIMEZONE='America/Los_Angeles'");
stmt.execute("CREATE TABLE t (id INT, t1 TIMESTAMPTZ)");
stmt.execute("INSERT INTO t (id, t1) VALUES (1, '2022-01-01T12:11:10Z')");
stmt.execute("INSERT INTO t (id, t1) VALUES (2, '2022-01-01T12:11:11Z')");
rs = stmt.executeQuery("SELECT * FROM t ORDER BY id");
rs.next();
assertEquals(rs.getLong(2), 1641039070000000L);
rs.next();
assertEquals(rs.getLong(2), 1641039071000000L);
rs.close();
stmt.close();
conn.close();
}
public static void test_consecutive_timestamps() throws Exception {
long expected = 986860800000L;
try (Connection conn = DriverManager.getConnection(JDBC_URL); Statement stmt = conn.createStatement()) {
try (ResultSet rs = stmt.executeQuery(
"select range from range(TIMESTAMP '2001-04-10', TIMESTAMP '2001-04-11', INTERVAL 30 MINUTE)")) {
while (rs.next()) {
Timestamp actual = rs.getTimestamp(1, Calendar.getInstance());
assertEquals(expected, actual.getTime());
expected += 30 * 60 * 1_000;
}
}
}
}
public static void test_throw_wrong_datatype() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
ResultSet rs;
stmt.execute("CREATE TABLE t (id INT, t1 TIMESTAMPTZ, t2 TIMESTAMP)");
stmt.execute("INSERT INTO t (id, t1, t2) VALUES (1, '2022-01-01T12:11:10+02', '2022-01-01T12:11:10')");
rs = stmt.executeQuery("SELECT * FROM t");
rs.next();
assertThrows(() -> rs.getShort(2), IllegalArgumentException.class);
rs.close();
stmt.close();
conn.close();
}
public static void test_list_metadata() throws Exception {
try (Connection conn = DriverManager.getConnection(JDBC_URL); Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT generate_series(2) as list");) {
ResultSetMetaData meta = rs.getMetaData();
assertEquals(meta.getColumnCount(), 1);
assertEquals(meta.getColumnName(1), "list");
assertEquals(meta.getColumnTypeName(1), "BIGINT[]");
assertEquals(meta.getColumnType(1), Types.ARRAY);
}
}
public static void test_struct_metadata() throws Exception {
try (Connection conn = DriverManager.getConnection(JDBC_URL); Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT {'i': 42, 'j': 'a'} as struct")) {
ResultSetMetaData meta = rs.getMetaData();
assertEquals(meta.getColumnCount(), 1);
assertEquals(meta.getColumnName(1), "struct");
assertEquals(meta.getColumnTypeName(1), "STRUCT(i INTEGER, j VARCHAR)");
assertEquals(meta.getColumnType(1), Types.STRUCT);
}
}
public static void test_map_metadata() throws Exception {
try (Connection conn = DriverManager.getConnection(JDBC_URL); Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT map([1,2],['a','b']) as map")) {
ResultSetMetaData meta = rs.getMetaData();
assertEquals(meta.getColumnCount(), 1);
assertEquals(meta.getColumnName(1), "map");
assertEquals(meta.getColumnTypeName(1), "MAP(INTEGER, VARCHAR)");
assertEquals(meta.getColumnType(1), Types.JAVA_OBJECT);
}
}
public static void test_union_metadata() throws Exception {
try (Connection conn = DriverManager.getConnection(JDBC_URL); Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT union_value(str := 'three') as union")) {
ResultSetMetaData meta = rs.getMetaData();
assertEquals(meta.getColumnCount(), 1);
assertEquals(meta.getColumnName(1), "union");
assertEquals(meta.getColumnTypeName(1), "UNION(str VARCHAR)");
assertEquals(meta.getColumnType(1), Types.JAVA_OBJECT);
}
}
public static void test_native_duckdb_array() throws Exception {
try (Connection conn = DriverManager.getConnection(JDBC_URL);
PreparedStatement stmt = conn.prepareStatement("SELECT generate_series(1)::BIGINT[2] as \"array\"");
ResultSet rs = stmt.executeQuery()) {
ResultSetMetaData meta = rs.getMetaData();
assertEquals(meta.getColumnCount(), 1);
assertEquals(meta.getColumnName(1), "array");
assertEquals(meta.getColumnTypeName(1), "BIGINT[2]");
assertEquals(meta.getColumnType(1), Types.ARRAY);
assertEquals(meta.getColumnClassName(1), DuckDBArray.class.getName());
assertTrue(rs.next());
assertListsEqual(toJavaObject(rs.getObject(1)), asList(0L, 1L));
}
}
public static void test_result() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
ResultSet rs;
rs = stmt.executeQuery("SELECT CAST(42 AS INTEGER) as a, CAST(4.2 AS DOUBLE) as b");
ResultSetMetaData meta = rs.getMetaData();
assertEquals(meta.getColumnCount(), 2);
assertEquals(meta.getColumnName(1), "a");
assertEquals(meta.getColumnName(2), "b");
assertEquals(meta.getColumnTypeName(1), "INTEGER");
assertEquals(meta.getColumnTypeName(2), "DOUBLE");
assertThrows(() -> meta.getColumnName(0), ArrayIndexOutOfBoundsException.class);
assertThrows(() -> meta.getColumnTypeName(0), ArrayIndexOutOfBoundsException.class);
assertThrows(() -> meta.getColumnName(3), SQLException.class);
assertThrows(() -> meta.getColumnTypeName(3), SQLException.class);
assertTrue(rs.next());
assertEquals(rs.getInt(1), 42);
assertEquals(rs.getString(1), "42");
assertEquals(rs.getDouble(1), 42.0, 0.001);
assertTrue(rs.getObject(1).equals(42));
assertEquals(rs.getInt("a"), 42);
assertEquals(rs.getString("a"), "42");
assertEquals(rs.getDouble("a"), 42.0, 0.001);
assertTrue(rs.getObject("a").equals(42));
assertEquals(rs.getInt(2), 4);
assertEquals(rs.getString(2), "4.2");
assertEquals(rs.getDouble(2), 4.2, 0.001);
assertTrue(rs.getObject(2).equals(4.2));
assertEquals(rs.getInt("b"), 4);
assertEquals(rs.getString("b"), "4.2");
assertEquals(rs.getDouble("b"), 4.2, 0.001);
assertTrue(rs.getObject("b").equals(4.2));
assertFalse(rs.next());
rs.close();
stmt.close();
// test duplication
Connection conn2 = conn.unwrap(DuckDBConnection.class).duplicate();
ResultSet rs_conn2 = conn2.createStatement().executeQuery("SELECT 42");
rs_conn2.next();
assertEquals(42, rs_conn2.getInt(1));
rs_conn2.close();
conn.close();
conn2.close();
}
public static void test_empty_table() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
stmt.execute("CREATE TABLE a (i iNTEGER)");
ResultSet rs = stmt.executeQuery("SELECT * FROM a");
assertFalse(rs.next());
assertEquals(assertThrows(() -> rs.getObject(1), SQLException.class), "No row in context");
rs.close();
stmt.close();
conn.close();
}
public static void test_broken_next() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
stmt.execute("CREATE TABLE t0(c0 INT8, c1 VARCHAR)");
stmt.execute(
"INSERT INTO t0(c1, c0) VALUES (-315929644, 1), (-315929644, -315929644), (-634993846, -1981637379)");
stmt.execute("INSERT INTO t0(c0, c1) VALUES (-433000283, -433000283)");
stmt.execute("INSERT INTO t0(c0) VALUES (-995217820)");
stmt.execute("INSERT INTO t0(c1, c0) VALUES (-315929644, -315929644)");
ResultSet rs = stmt.executeQuery("SELECT c0 FROM t0");
while (rs.next()) {
assertTrue(!rs.getObject(1).equals(null));
}
rs.close();
stmt.close();
conn.close();
}
public static void test_multiple_connections() throws Exception {
Connection conn1 = DriverManager.getConnection(JDBC_URL);
Statement stmt1 = conn1.createStatement();
Connection conn2 = DriverManager.getConnection(JDBC_URL);
Statement stmt2 = conn2.createStatement();
Statement stmt3 = conn2.createStatement();
ResultSet rs1 = stmt1.executeQuery("SELECT 42");
assertTrue(rs1.next());
assertEquals(42, rs1.getInt(1));
rs1.close();
ResultSet rs2 = stmt2.executeQuery("SELECT 43");
assertTrue(rs2.next());
assertEquals(43, rs2.getInt(1));
ResultSet rs3 = stmt3.executeQuery("SELECT 44");
assertTrue(rs3.next());
assertEquals(44, rs3.getInt(1));
rs3.close();
// creative closing sequence should also work
stmt2.close();
rs3 = stmt3.executeQuery("SELECT 44");
assertTrue(rs3.next());
assertEquals(44, rs3.getInt(1));
stmt2.close();
rs2.close();
rs3.close();
System.gc();
System.gc();
// stmt1 still works
rs1 = stmt1.executeQuery("SELECT 42");
assertTrue(rs1.next());
assertEquals(42, rs1.getInt(1));
rs1.close();
// stmt3 still works
rs3 = stmt3.executeQuery("SELECT 42");
assertTrue(rs3.next());
assertEquals(42, rs3.getInt(1));
rs3.close();
conn2.close();
stmt3.close();
rs2 = null;
rs3 = null;
stmt2 = null;
stmt3 = null;
conn2 = null;
System.gc();
System.gc();
// stmt1 still works
rs1 = stmt1.executeQuery("SELECT 42");
assertTrue(rs1.next());
assertEquals(42, rs1.getInt(1));
rs1.close();
conn1.close();
stmt1.close();
}
public static void test_duckdb_timestamp() throws Exception {
duckdb_timestamp_test();
// Store default time zone
TimeZone defaultTZ = TimeZone.getDefault();
// Test with different time zones
TimeZone.setDefault(TimeZone.getTimeZone("America/Lima"));
duckdb_timestamp_test();
// Test with different time zones
TimeZone.setDefault(TimeZone.getTimeZone("Europe/Berlin"));
duckdb_timestamp_test();
// Restore default time zone
TimeZone.setDefault(defaultTZ);
}
public static void duckdb_timestamp_test() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
stmt.execute("CREATE TABLE a (ts TIMESTAMP)");
// Generate tests without database
Timestamp ts0 = Timestamp.valueOf("1970-01-01 00:00:00");
Timestamp ts1 = Timestamp.valueOf("2021-07-29 21:13:11");
Timestamp ts2 = Timestamp.valueOf("2021-07-29 21:13:11.123456");
Timestamp ts3 = Timestamp.valueOf("1921-07-29 21:13:11");
Timestamp ts4 = Timestamp.valueOf("1921-07-29 21:13:11.123456");
Timestamp cts0 = new DuckDBTimestamp(ts0).toSqlTimestamp();
Timestamp cts1 = new DuckDBTimestamp(ts1).toSqlTimestamp();
Timestamp cts2 = new DuckDBTimestamp(ts2).toSqlTimestamp();
Timestamp cts3 = new DuckDBTimestamp(ts3).toSqlTimestamp();
Timestamp cts4 = new DuckDBTimestamp(ts4).toSqlTimestamp();
assertTrue(ts0.getTime() == cts0.getTime());
assertTrue(ts0.compareTo(cts0) == 0);
assertTrue(ts1.getTime() == cts1.getTime());
assertTrue(ts1.compareTo(cts1) == 0);
assertTrue(ts2.getTime() == cts2.getTime());
assertTrue(ts2.compareTo(cts2) == 0);
assertTrue(ts3.getTime() == cts3.getTime());
assertTrue(ts3.compareTo(cts3) == 0);
assertTrue(ts4.getTime() == cts4.getTime());
assertTrue(ts4.compareTo(cts4) == 0);
assertTrue(DuckDBTimestamp.getMicroseconds(DuckDBTimestamp.toSqlTimestamp(5678912345L)) == 5678912345L);
DuckDBTimestamp dts4 = new DuckDBTimestamp(ts1);
assertTrue(dts4.toSqlTimestamp().compareTo(ts1) == 0);
DuckDBTimestamp dts5 = new DuckDBTimestamp(ts2);
assertTrue(dts5.toSqlTimestamp().compareTo(ts2) == 0);
// Insert and read a timestamp
stmt.execute("INSERT INTO a (ts) VALUES ('2005-11-02 07:59:58')");
ResultSet rs = stmt.executeQuery("SELECT * FROM a");
assertTrue(rs.next());
assertEquals(rs.getObject("ts"), Timestamp.valueOf("2005-11-02 07:59:58"));
assertEquals(rs.getTimestamp("ts"), Timestamp.valueOf("2005-11-02 07:59:58"));
rs.close();
stmt.close();
PreparedStatement ps = conn.prepareStatement("SELECT COUNT(ts) FROM a WHERE ts = ?");
ps.setTimestamp(1, Timestamp.valueOf("2005-11-02 07:59:58"));
ResultSet rs2 = ps.executeQuery();
assertTrue(rs2.next());
assertEquals(rs2.getInt(1), 1);
rs2.close();
ps.close();
ps = conn.prepareStatement("SELECT COUNT(ts) FROM a WHERE ts = ?");
ps.setObject(1, Timestamp.valueOf("2005-11-02 07:59:58"));
ResultSet rs3 = ps.executeQuery();
assertTrue(rs3.next());
assertEquals(rs3.getInt(1), 1);
rs3.close();
ps.close();
ps = conn.prepareStatement("SELECT COUNT(ts) FROM a WHERE ts = ?");
ps.setObject(1, Timestamp.valueOf("2005-11-02 07:59:58"), Types.TIMESTAMP);
ResultSet rs4 = ps.executeQuery();
assertTrue(rs4.next());
assertEquals(rs4.getInt(1), 1);
rs4.close();
ps.close();
Statement stmt2 = conn.createStatement();
stmt2.execute("INSERT INTO a (ts) VALUES ('1905-11-02 07:59:58.12345')");
ps = conn.prepareStatement("SELECT COUNT(ts) FROM a WHERE ts = ?");
ps.setTimestamp(1, Timestamp.valueOf("1905-11-02 07:59:58.12345"));
ResultSet rs5 = ps.executeQuery();
assertTrue(rs5.next());
assertEquals(rs5.getInt(1), 1);
rs5.close();
ps.close();
ps = conn.prepareStatement("SELECT ts FROM a WHERE ts = ?");
ps.setTimestamp(1, Timestamp.valueOf("1905-11-02 07:59:58.12345"));
ResultSet rs6 = ps.executeQuery();
assertTrue(rs6.next());
assertEquals(rs6.getTimestamp(1), Timestamp.valueOf("1905-11-02 07:59:58.12345"));
rs6.close();
ps.close();
conn.close();
}
public static void test_duckdb_localdatetime() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
stmt.execute("CREATE TABLE x (ts TIMESTAMP)");
LocalDateTime ldt = LocalDateTime.of(2021, 1, 18, 21, 20, 7);
PreparedStatement ps1 = conn.prepareStatement("INSERT INTO x VALUES (?)");
ps1.setObject(1, ldt);
ps1.execute();
ps1.close();
PreparedStatement ps2 = conn.prepareStatement("SELECT * FROM x");
ResultSet rs2 = ps2.executeQuery();
rs2.next();
assertEquals(rs2.getTimestamp(1), rs2.getObject(1, Timestamp.class));
assertEquals(rs2.getObject(1, LocalDateTime.class), ldt);
rs2.close();
ps2.close();
stmt.close();
conn.close();
}
public static void test_duckdb_getObject_with_class() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
stmt.execute("CREATE TABLE b (vchar VARCHAR, bo BOOLEAN, sint SMALLINT, nint INTEGER, bigi BIGINT,"
+ " flt FLOAT, dbl DOUBLE, dte DATE, tme TIME, ts TIMESTAMP, dec16 DECIMAL(3,1),"
+ " dec32 DECIMAL(9,8), dec64 DECIMAL(16,1), dec128 DECIMAL(30,10), tint TINYINT, utint UTINYINT,"
+ " usint USMALLINT, uint UINTEGER, ubig UBIGINT, hin HUGEINT, uhin UHUGEINT, blo BLOB)");
stmt.execute(
"INSERT INTO b VALUES ('varchary', true, 6, 42, 666, 42.666, 666.42,"
+
" '1970-01-02', '01:00:34', '1970-01-03 03:42:23', 42.2, 1.23456789, 987654321012345.6, 111112222233333.44444, "
+ " -4, 200, 50001, 4000111222, 18446744073709551615, 18446744073709551616, "
+ " 170141183460469231731687303715884105728, 'yeah'::BLOB)");
PreparedStatement ps = conn.prepareStatement("SELECT * FROM b");
ResultSet rs = ps.executeQuery();
rs.next();
assertEquals(rs.getString(1), rs.getObject(1, String.class));
assertEquals(rs.getBoolean(2), rs.getObject(2, Boolean.class));
assertEquals(rs.getShort(3), rs.getObject(3, Short.class));
assertEquals(rs.getInt(4), rs.getObject(4, Integer.class));
assertEquals(rs.getLong(5), rs.getObject(5, Long.class));
assertEquals(rs.getFloat(6), rs.getObject(6, Float.class));
assertEquals(rs.getDouble(7), rs.getObject(7, Double.class));
assertEquals(rs.getDate(8), rs.getObject(8, Date.class));
assertEquals(rs.getTime(9), rs.getObject(9, Time.class));
assertEquals(rs.getTimestamp(10), rs.getObject(10, Timestamp.class));
assertEquals(rs.getObject(10, LocalDateTime.class), LocalDateTime.parse("1970-01-03T03:42:23"));
assertEquals(rs.getObject(10, LocalDateTime.class), LocalDateTime.of(1970, 1, 3, 3, 42, 23));
assertEquals(rs.getBigDecimal(11), rs.getObject(11, BigDecimal.class));
assertEquals(rs.getBigDecimal(12), rs.getObject(12, BigDecimal.class));
assertEquals(rs.getBigDecimal(13), rs.getObject(13, BigDecimal.class));
assertEquals(rs.getBigDecimal(14), rs.getObject(14, BigDecimal.class));
// Missing implementations, should never reach assertTrue(false)
try {
rs.getObject(11, Integer.class);
assertTrue(false);
} catch (SQLException e) {
}
try {
rs.getObject(12, Integer.class);
assertTrue(false);
} catch (SQLException e) {
}
try {
rs.getObject(13, Integer.class);
assertTrue(false);
} catch (SQLException e) {
}
try {
rs.getObject(14, Long.class);
assertTrue(false);
} catch (SQLException e) {
}
try {
rs.getObject(15, BigInteger.class);
assertTrue(false);
} catch (SQLException e) {
}
try {
rs.getObject(16, BigInteger.class);
assertTrue(false);
} catch (SQLException e) {
}
try {
rs.getObject(16, Blob.class);
assertTrue(false);
} catch (SQLException e) {
}
rs.close();
ps.close();
stmt.close();
conn.close();
}
public static void test_multiple_statements_execution() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("CREATE TABLE integers(i integer);\n"
+ "insert into integers select * from range(10);"
+ "select * from integers;");
int i = 0;
while (rs.next()) {
assertEquals(rs.getInt("i"), i);
i++;
}
assertEquals(i, 10);
}
public static void test_multiple_statements_exception() throws Exception {
Connection conn = DriverManager.getConnection(JDBC_URL);
Statement stmt = conn.createStatement();
boolean succ = false;
try {
stmt.executeQuery("CREATE TABLE integers(i integer, i boolean);\n"
+ "CREATE TABLE integers2(i integer);\n"
+ "insert into integers2 select * from range(10);\n"
+ "select * from integers2;");
succ = true;
} catch (Exception ex) {
assertFalse(succ);
}
}