Use QueryService by default (#80)

README.md

@@ -37,10 +37,6 @@ Specify the YDB JDBC driver in the dependencies:
     </dependency>
 </dependencies>
 ```
-### Using QueryService mode
-By default JDBC driver executes all queries via TableService, so it brings corresponding [limitations](https://ydb.tech/docs/en/concepts/limits-ydb#query).
-To eliminate these limitations you can try a new experimentail [QueryService](https://ydb.tech/docs/en/conceptrs/query_service) mode by passing property `useQueryService=true` to the JDBC URL
-
 ### Authentication modes
 
 YDB JDBC Driver supports the following [authentication modes](https://ydb.tech/en/docs/reference/ydb-sdk/auth):
@@ -62,6 +58,10 @@ Driver supports the following configuration properties, which can be specified i
 * `secureConnection` - boolean value, true if TLS should be enforced (normally configured via `grpc://` or `grpcs://` scheme in the JDBC URL);
 * `secureConnectionCertificate` - custom CA certificate for TLS connections, can be passed either as literal value or as a file reference.
 
+### Using TableService mode
+By default JDBC driver executes all queries via QueryService, which uses grpc streams for the results recieving.
+If your database instance doesn't support this service, you can use old TableService mode by passing property `useQueryService=false` to the JDBC URL.
+
 ### Building
 By default all tests are run using a local YDB instance in Docker (if host has Docker or Docker Machine installed)
 To disable these tests run `mvn test -DYDB_DISABLE_INTEGRATION_TESTS=true`

jdbc/src/main/java/tech/ydb/jdbc/settings/YdbConfig.java

@@ -38,7 +38,7 @@ public class YdbConfig {
                     + "{@code 0} disables the cache.", 256
     );
     static final YdbProperty<Boolean> USE_QUERY_SERVICE = YdbProperty.bool("useQueryService",
-            "Use QueryService instead of TableService", false
+            "Use QueryService instead of TableService", true
     );
 
     static final YdbProperty<String> USE_PREFIX_PATH = YdbProperty.string("usePrefixPath",

jdbc/src/test/java/tech/ydb/jdbc/YdbDriverTablesTest.java

@@ -112,7 +112,7 @@ public void defaultModeTest() throws SQLException {
                         Assertions.assertEquals(Date.valueOf(ld.plusDays(readed)), rs.getDate("date"));
                     }
                 }
-                Assertions.assertEquals(1000, readed);
+                Assertions.assertEquals(2002, readed);
             }
 
             // single update
@@ -319,7 +319,6 @@ public void forceScanAndBulkTest() throws SQLException {
     @Test
     public void streamResultsTest() throws SQLException {
         try (Connection conn = DriverManager.getConnection(jdbcURL
-                .withArg("useQueryService", "true")
                 .withArg("useStreamResultSets", "true")
                 .build()
         )) {
@@ -443,4 +442,86 @@ public void streamResultsTest() throws SQLException {
             }
         }
     }
+
+    @Test
+    public void tableServiceModeTest() throws SQLException {
+        try (Connection connection = DriverManager.getConnection(jdbcURL.withArg("useQueryService", "false").build())) {
+            try {
+                connection.createStatement().execute(DROP_TABLE);
+            } catch (SQLException e) {
+                // ignore
+            }
+
+            connection.createStatement().execute(CREATE_TABLE);
+
+            LocalDate ld = LocalDate.of(2017, 12, 3);
+            String prefix = "text-value-";
+            int idx = 0;
+
+            // single upsert
+            try (PreparedStatement ps = connection.prepareStatement(UPSERT_ROW)) {
+                ps.setInt(1, ++idx);
+                ps.setString(2, prefix + idx);
+                ps.setDate(3, Date.valueOf(ld.plusDays(idx)));
+                ps.executeUpdate();
+            }
+
+            // single insert
+            try (PreparedStatement ps = connection.prepareStatement(INSERT_ROW)) {
+                ps.setInt(1, ++idx);
+                ps.setString(2, prefix + idx);
+                ps.setDate(3, Date.valueOf(ld.plusDays(idx)));
+                ps.executeUpdate();
+            }
+
+            // batch upsert
+            try (PreparedStatement ps = connection.prepareStatement(UPSERT_ROW)) {
+                for (int j = 0; j < 1000; j++) {
+                    ps.setInt(1, ++idx);
+                    ps.setString(2, prefix + idx);
+                    ps.setDate(3, Date.valueOf(ld.plusDays(idx)));
+                    ps.addBatch();
+                }
+                ps.executeBatch();
+            }
+
+            // batch insert
+            try (PreparedStatement ps = connection.prepareStatement(INSERT_ROW)) {
+                for (int j = 0; j < 1000; j++) {
+                    ps.setInt(1, ++idx);
+                    ps.setString(2, prefix + idx);
+                    ps.setDate(3, Date.valueOf(ld.plusDays(idx)));
+                    ps.addBatch();
+                }
+                ps.executeBatch();
+            }
+
+            // read all
+            try (Statement st = connection.createStatement()) {
+                int readed = 0;
+                try (ResultSet rs = st.executeQuery(SELECT_ALL)) {
+                    while (rs.next()) {
+                        readed++;
+                        Assertions.assertEquals(readed, rs.getInt("id"));
+                        Assertions.assertEquals(prefix + readed, rs.getString("value"));
+                        Assertions.assertEquals(Date.valueOf(ld.plusDays(readed)), rs.getDate("date"));
+                    }
+                }
+                Assertions.assertEquals(1000, readed);
+            }
+
+            // single update
+            try (PreparedStatement ps = connection.prepareStatement(UPDATE_ROW)) {
+                ps.setString(1, "updated-value");
+                ps.setInt(2, 1);
+                ps.executeUpdate();
+            }
+
+            // single delete
+            try (PreparedStatement ps = connection.prepareStatement(DELETE_ROW)) {
+                ps.setInt(1, 2);
+                ps.executeUpdate();
+            }
+        }
+    }
 }

jdbc/src/test/java/tech/ydb/jdbc/impl/YdbConnectionImplTest.java

@@ -876,15 +876,15 @@ private String createPayload(Random rnd, int length) {
     @Timeout(value = 30, unit = TimeUnit.SECONDS, threadMode = Timeout.ThreadMode.SAME_THREAD)
     public void testBigBulkAndScan() throws SQLException {
         String bulkUpsert = QUERIES.upsertOne(SqlQueries.JdbcQuery.BULK, "c_Text", "Text?");
-        String scanSelectAll = QUERIES.scanSelectSQL();
+        String selectAll = QUERIES.selectSQL();
         String selectOne = QUERIES.selectAllByKey("?");
 
         Random rnd = new Random(0x234567);
         int payloadLength = 1000;
 
-        try {
+        try (Connection conn = jdbc.createCustomConnection("useStreamResultSets", "true")) {
             // BULK UPSERT
-            try (PreparedStatement ps = jdbc.connection().prepareStatement(bulkUpsert)) {
+            try (PreparedStatement ps = conn.prepareStatement(bulkUpsert)) {
                 for (int idx = 1; idx <= 10000; idx++) {
                     ps.setInt(1, idx);
                     String payload = createPayload(rnd, payloadLength);
@@ -898,7 +898,7 @@ public void testBigBulkAndScan() throws SQLException {
             }
 
             // SCAN all table
-            try (PreparedStatement ps = jdbc.connection().prepareStatement(scanSelectAll)) {
+            try (PreparedStatement ps = conn.prepareStatement(selectAll)) {
                 int readed = 0;
                 Assertions.assertTrue(ps.execute());
                 try (ResultSet rs = ps.getResultSet()) {
@@ -912,7 +912,7 @@ public void testBigBulkAndScan() throws SQLException {
             }
 
             // Canceled scan
-            try (PreparedStatement ps = jdbc.connection().prepareStatement(scanSelectAll)) {
+            try (PreparedStatement ps = conn.prepareStatement(selectAll)) {
                 Assertions.assertTrue(ps.execute());
                 ps.getResultSet().next();
                 ps.getResultSet().close();
@@ -930,14 +930,14 @@ public void testBigBulkAndScan() throws SQLException {
             }
 
             //  Scan was cancelled, but connection still work
-            try (PreparedStatement ps = jdbc.connection().prepareStatement(selectOne)) {
+            try (PreparedStatement ps = conn.prepareStatement(selectOne)) {
                 ps.setInt(1, 1234);
 
                 Assertions.assertTrue(ps.execute());
                 try (ResultSet rs = ps.getResultSet()) {
                     Assertions.assertTrue(rs.next());
                     Assertions.assertEquals(1234, rs.getInt("key"));
-                        Assertions.assertEquals(payloadLength, rs.getString("c_Text").length());
+                    Assertions.assertEquals(payloadLength, rs.getString("c_Text").length());
                     Assertions.assertFalse(rs.next());
                 }
             }
@@ -1176,8 +1176,8 @@ public void fullScanAnalyzerPreparedStatementTest() throws SQLException {
         try (Connection connection = jdbc.createCustomConnection("jdbcFullScanDetector", "true")) {
             try (PreparedStatement ps = connection.prepareStatement("print_JDBC_stats();")) {
                 sa.check(ps.executeQuery())
-                        .assertMetaColumns()
-                        .assertNoRows();
+                            .assertMetaColumns()
+                            .assertNoRows();
             }
 
             try (PreparedStatement ps = connection.prepareStatement(preparedSelectByKey)) {
@@ -1238,8 +1238,8 @@ public void fullScanAnalyzerPreparedStatementTest() throws SQLException {
 
             try (PreparedStatement ps = connection.prepareStatement("print_JDBC_stats();")) {
                 sa.check(ps.executeQuery())
-                        .assertMetaColumns()
-                        .assertNoRows();
+                            .assertMetaColumns()
+                            .assertNoRows();
             }
         }
     }

jdbc/src/test/java/tech/ydb/jdbc/impl/YdbPreparedStatementImplTest.java

@@ -51,9 +51,6 @@ public class YdbPreparedStatementImplTest {
     private static final String SELECT_BY_KEY_SQL = ""
             + "declare $key as Optional<Int32>;\n"
             + "select key, #column from #tableName where key=$key";
-    private static final String SCAN_SELECT_BY_KEY_SQL = ""
-            + "declare $key as Optional<Int32>;\n"
-            + "scan select key, #column from #tableName where key=$key";
 
     @BeforeAll
     public static void initTable() throws SQLException {
@@ -97,20 +94,6 @@ private YdbPreparedStatement prepareSelectByKey(String column) throws SQLExcepti
         return jdbc.connection().prepareStatement(sql).unwrap(YdbPreparedStatement.class);
     }
 
-    private PreparedStatement prepareScanSelect(String column) throws SQLException {
-        String sql = SIMPLE_SELECT_SQL
-                .replaceAll("#column", column)
-                .replaceAll("#tableName", TEST_TABLE_NAME);
-        return jdbc.connection().prepareStatement("SCAN " + sql);
-    }
-
-    private String scanSelectByKey(String column) throws SQLException {
-        String sql = SCAN_SELECT_BY_KEY_SQL
-                .replaceAll("#column", column)
-                .replaceAll("#tableName", TEST_TABLE_NAME);
-        return sql;
-    }
-
     private YdbPreparedStatement prepareSelectAll() throws SQLException {
         return jdbc.connection().prepareStatement(TEST_TABLE.selectSQL())
                 .unwrap(YdbPreparedStatement.class);
@@ -260,7 +243,7 @@ public void executeEmptyBatch(SqlQueries.YqlQuery mode) throws SQLException {
     }
 
     @Test
-    public void executeQueryBatchWithScanRead() throws SQLException {
+    public void executeQueryBatchWithBigRead() throws SQLException {
         int valuesCount = 5000;
         String[] values = new String[valuesCount];
         for (int idx = 1; idx <= valuesCount; idx += 1) {
@@ -283,14 +266,7 @@ public void executeQueryBatchWithScanRead() throws SQLException {
             }
         }
 
-        ExceptionAssert.sqlException("Result #0 was truncated to 1000 rows", () -> {
-            // Result is truncated (and we catch that)
-            try (PreparedStatement select = prepareSimpleSelect("c_Text")) {
-                select.executeQuery();
-            }
-        });
-
-        try (PreparedStatement select = prepareScanSelect("c_Text")) {
+        try (PreparedStatement select = prepareSimpleSelect("c_Text")) {
             TextSelectAssert check = TextSelectAssert.of(select.executeQuery(), "c_Text", "Text");
 
             for (int idx = 1; idx <= valuesCount; idx += 1) {
@@ -365,42 +341,6 @@ public void executeQueryInTx(SqlQueries.YqlQuery mode) throws SQLException {
         }
     }
 
-    @ParameterizedTest(name = "with {0}")
-    @EnumSource(SqlQueries.YqlQuery.class)
-    public void executeScanQueryInTx(SqlQueries.YqlQuery mode) throws SQLException {
-        String upsertYql = TEST_TABLE.upsertOne(mode, "c_Text", "Text");
-        String scanSelectYql = scanSelectByKey("c_Text");
-
-        jdbc.connection().setAutoCommit(false);
-        YdbConnection conn = jdbc.connection().unwrap(YdbConnection.class);
-        try {
-            try (YdbPreparedStatement statement = conn.prepareStatement(upsertYql)) {
-                statement.setInt("key", 1);
-                statement.setString("c_Text", "value-1");
-                statement.execute();
-            }
-
-            try (YdbPreparedStatement select = conn.prepareStatement(scanSelectYql)) {
-                select.setInt("key", 1);
-
-                ExceptionAssert.sqlException(YdbConst.SCAN_QUERY_INSIDE_TRANSACTION, () -> select.executeQuery());
-
-                jdbc.connection().commit();
-
-                select.setInt("key", 1);
-                TextSelectAssert.of(select.executeQuery(), "c_Text", "Text")
-                        .nextRow(1, "value-1")
-                        .noNextRows();
-
-                select.setInt("key", 2);
-                TextSelectAssert.of(select.executeQuery(), "c_Text", "Text")
-                        .noNextRows();
-            }
-        } finally {
-            jdbc.connection().setAutoCommit(true);
-        }
-    }
-
     @Test
     public void executeScanQueryAsUpdate() throws SQLException {
         String sql = "SCAN " + TEST_TABLE.upsertOne(SqlQueries.JdbcQuery.STANDARD, "c_Text", "Optional<Text>");

jdbc/src/test/java/tech/ydb/jdbc/impl/YdbPreparedStatementWithDataQueryBatchedImplTest.java

@@ -25,16 +25,12 @@ public class YdbPreparedStatementWithDataQueryBatchedImplTest {
     private static final YdbHelperExtension ydb = new YdbHelperExtension();
 
     @RegisterExtension
-    private static final JdbcConnectionExtention jdbc = new JdbcConnectionExtention(ydb);
+    private static final JdbcConnectionExtention jdbc = new JdbcConnectionExtention(ydb)
+            .withArg("useQueryService", "false");
 
     private static final String TEST_TABLE_NAME = "ydb_prepared_statement_with_batch_test";
     private static final SqlQueries TEST_TABLE = new SqlQueries(TEST_TABLE_NAME);
 
-    private static final String UPSERT_SQL = ""
-            + "declare $key as Optional<Int32>;\n"
-            + "declare $#column as #type;\n"
-            + "upsert into #tableName (key, #column) values ($key, $#column)";
-
     private static final String BATCH_UPSERT_SQL = ""
             + "declare $values as List<Struct<key:Int32, #column:#type>>; \n"
             + "upsert into #tableName select * from as_table($values)";
@@ -77,13 +73,6 @@ public void afterEach() throws SQLException {
         jdbc.connection().close();
     }
 
-    private String upsertSql(String column, String type) {
-        return UPSERT_SQL
-                .replaceAll("#column", column)
-                .replaceAll("#type", type)
-                .replaceAll("#tableName", TEST_TABLE_NAME);
-    }
-
     private String batchUpsertSql(String column, String type) {
         return BATCH_UPSERT_SQL
                 .replaceAll("#column", column)