Examples with CreateIndexStatement herddb.model.commands.CreateIndexStatement used on opensource projects

Example 41 with CreateIndexStatement

use of herddb.model.commands.CreateIndexStatement in project herddb by diennea.

the class BackupRestoreTest method test_backup_restore_recover_from_tx_log_with_newtransaction_during_dump.

@Test
public void test_backup_restore_recover_from_tx_log_with_newtransaction_during_dump() throws Exception {
    ServerConfiguration serverconfig_1 = new ServerConfiguration(folder.newFolder().toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_NODEID, "server1");
    serverconfig_1.set(ServerConfiguration.PROPERTY_PORT, 7867);
    serverconfig_1.set(ServerConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ENFORCE_LEADERSHIP, false);
    ServerConfiguration serverconfig_2 = serverconfig_1.copy().set(ServerConfiguration.PROPERTY_NODEID, "server2").set(ServerConfiguration.PROPERTY_BASEDIR, folder.newFolder().toPath().toAbsolutePath()).set(ServerConfiguration.PROPERTY_PORT, 7868);
    ClientConfiguration client_configuration = new ClientConfiguration(folder.newFolder().toPath());
    client_configuration.set(ClientConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        Table table1 = Table.builder().name("t1").column("c", ColumnTypes.INTEGER).column("d", ColumnTypes.INTEGER).primaryKey("c").build();
        Index index = Index.builder().onTable(table1).column("d", ColumnTypes.INTEGER).type(Index.TYPE_BRIN).build();
        Table table2 = Table.builder().name("t2").column("c", ColumnTypes.INTEGER).column("d", ColumnTypes.INTEGER).primaryKey("c").build();
        server_1.getManager().executeStatement(new CreateTableStatement(table1), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeStatement(new CreateTableStatement(table2), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeStatement(new CreateIndexStatement(index), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 1, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 2, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 3, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 4, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            try (HDBClient client = new HDBClient(client_configuration);
                HDBConnection connection = client.openConnection()) {
                assertEquals(4, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                ByteArrayOutputStream oo = new ByteArrayOutputStream();
                BackupUtils.dumpTableSpace(TableSpace.DEFAULT, 64 * 1024, connection, oo, new ProgressListener() {

                    @Override
                    public void log(String type, String message, Map<String, Object> context) {
                        System.out.println("PROGRESS: " + type + " " + message + " context:" + context);
                        if (type.equals("beginTable") && "t1".equals(context.get("table"))) {
                            try {
                                long tx1 = TestUtils.beginTransaction(server_1.getManager(), TableSpace.DEFAULT);
                                server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 5, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), new TransactionContext(tx1));
                                TestUtils.commitTransaction(server_1.getManager(), TableSpace.DEFAULT, tx1);
                            } catch (StatementExecutionException err) {
                                throw new RuntimeException(err);
                            }
                        }
                    }
                });
                byte[] backupData = oo.toByteArray();
                connection.executeUpdate(TableSpace.DEFAULT, "DELETE FROM t1", 0, false, Collections.emptyList());
                assertEquals(0, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                BackupUtils.restoreTableSpace("newts", server_2.getNodeId(), connection, new ByteArrayInputStream(backupData), new ProgressListener() {
                });
                assertEquals(5, connection.executeScan("newts", "SELECT * FROM newts.t1", Collections.emptyList(), 0, 0, 10).consume().size());
                assertEquals(1, server_2.getManager().getTableSpaceManager("newts").getIndexesOnTable("t1").size());
            }
        }
    }
}

Example 42 with CreateIndexStatement

use of herddb.model.commands.CreateIndexStatement in project herddb by diennea.

the class BackupRestoreTest method test_backup_restore_recover_from_tx_log_with_transaction.

@Test
public void test_backup_restore_recover_from_tx_log_with_transaction() throws Exception {
    ServerConfiguration serverconfig_1 = new ServerConfiguration(folder.newFolder().toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_NODEID, "server1");
    serverconfig_1.set(ServerConfiguration.PROPERTY_PORT, 7867);
    serverconfig_1.set(ServerConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ENFORCE_LEADERSHIP, false);
    ServerConfiguration serverconfig_2 = serverconfig_1.copy().set(ServerConfiguration.PROPERTY_NODEID, "server2").set(ServerConfiguration.PROPERTY_BASEDIR, folder.newFolder().toPath().toAbsolutePath()).set(ServerConfiguration.PROPERTY_PORT, 7868);
    ClientConfiguration client_configuration = new ClientConfiguration(folder.newFolder().toPath());
    client_configuration.set(ClientConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        Table table1 = Table.builder().name("t1").column("c", ColumnTypes.INTEGER).column("d", ColumnTypes.INTEGER).primaryKey("c").build();
        Index index = Index.builder().onTable(table1).column("d", ColumnTypes.INTEGER).type(Index.TYPE_BRIN).build();
        Table table2 = Table.builder().name("t2").column("c", ColumnTypes.INTEGER).column("d", ColumnTypes.INTEGER).primaryKey("c").build();
        server_1.getManager().executeStatement(new CreateTableStatement(table1), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeStatement(new CreateTableStatement(table2), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeStatement(new CreateIndexStatement(index), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 1, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 2, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 3, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 4, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        long tx1 = TestUtils.beginTransaction(server_1.getManager(), TableSpace.DEFAULT);
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            try (HDBClient client = new HDBClient(client_configuration);
                HDBConnection connection = client.openConnection()) {
                assertEquals(4, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                ByteArrayOutputStream oo = new ByteArrayOutputStream();
                BackupUtils.dumpTableSpace(TableSpace.DEFAULT, 64 * 1024, connection, oo, new ProgressListener() {

                    @Override
                    public void log(String type, String message, Map<String, Object> context) {
                        System.out.println("PROGRESS: " + type + " " + message + " context:" + context);
                        if (type.equals("beginTable") && "t1".equals(context.get("table"))) {
                            try {
                                server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 5, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), new TransactionContext(tx1));
                                TestUtils.commitTransaction(server_1.getManager(), TableSpace.DEFAULT, tx1);
                            } catch (StatementExecutionException err) {
                                throw new RuntimeException(err);
                            }
                        }
                    }
                });
                byte[] backupData = oo.toByteArray();
                connection.executeUpdate(TableSpace.DEFAULT, "DELETE FROM t1", 0, false, Collections.emptyList());
                assertEquals(0, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                BackupUtils.restoreTableSpace("newts", server_2.getNodeId(), connection, new ByteArrayInputStream(backupData), new ProgressListener() {
                });
                assertEquals(5, connection.executeScan("newts", "SELECT * FROM newts.t1", Collections.emptyList(), 0, 0, 10).consume().size());
                assertEquals(1, server_2.getManager().getTableSpaceManager("newts").getIndexesOnTable("t1").size());
            }
        }
    }
}

Example 43 with CreateIndexStatement

use of herddb.model.commands.CreateIndexStatement in project herddb by diennea.

the class BackupRestoreTest method test_backup_restore_recover_from_tx_log.

@Test
public void test_backup_restore_recover_from_tx_log() throws Exception {
    ServerConfiguration serverconfig_1 = new ServerConfiguration(folder.newFolder().toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_NODEID, "server1");
    serverconfig_1.set(ServerConfiguration.PROPERTY_PORT, 7867);
    serverconfig_1.set(ServerConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ENFORCE_LEADERSHIP, false);
    ServerConfiguration serverconfig_2 = serverconfig_1.copy().set(ServerConfiguration.PROPERTY_NODEID, "server2").set(ServerConfiguration.PROPERTY_BASEDIR, folder.newFolder().toPath().toAbsolutePath()).set(ServerConfiguration.PROPERTY_PORT, 7868);
    ClientConfiguration client_configuration = new ClientConfiguration(folder.newFolder().toPath());
    client_configuration.set(ClientConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        Table table1 = Table.builder().name("t1").column("c", ColumnTypes.INTEGER).column("d", ColumnTypes.INTEGER).primaryKey("c").build();
        Index index = Index.builder().onTable(table1).column("d", ColumnTypes.INTEGER).type(Index.TYPE_BRIN).build();
        Table table2 = Table.builder().name("t2").column("c", ColumnTypes.INTEGER).column("d", ColumnTypes.INTEGER).primaryKey("c").build();
        server_1.getManager().executeStatement(new CreateTableStatement(table1), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeStatement(new CreateTableStatement(table2), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeStatement(new CreateIndexStatement(index), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 1, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 2, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 3, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 4, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            try (HDBClient client = new HDBClient(client_configuration);
                HDBConnection connection = client.openConnection()) {
                assertEquals(4, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                ByteArrayOutputStream oo = new ByteArrayOutputStream();
                BackupUtils.dumpTableSpace(TableSpace.DEFAULT, 64 * 1024, connection, oo, new ProgressListener() {

                    @Override
                    public void log(String type, String message, Map<String, Object> context) {
                        System.out.println("PROGRESS: " + type + " " + message + " context:" + context);
                        if (type.equals("beginTable") && "t1".equals(context.get("table"))) {
                            try {
                                server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table1, "c", 5, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
                            } catch (StatementExecutionException err) {
                                throw new RuntimeException(err);
                            }
                        }
                    }
                });
                byte[] backupData = oo.toByteArray();
                connection.executeUpdate(TableSpace.DEFAULT, "DELETE FROM t1", 0, false, Collections.emptyList());
                assertEquals(0, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                BackupUtils.restoreTableSpace("newts", server_2.getNodeId(), connection, new ByteArrayInputStream(backupData), new ProgressListener() {
                });
                assertEquals(5, connection.executeScan("newts", "SELECT * FROM newts.t1", Collections.emptyList(), 0, 0, 10).consume().size());
                assertEquals(1, server_2.getManager().getTableSpaceManager("newts").getIndexesOnTable("t1").size());
            }
        }
    }
}

Example 44 with CreateIndexStatement

use of herddb.model.commands.CreateIndexStatement in project herddb by diennea.

the class IndexScanRangeTest method secondaryIndexSeek.

private void secondaryIndexSeek(String indexType) throws Exception {
    String nodeId = "localhost";
    try (DBManager manager = new DBManager("localhost", new MemoryMetadataStorageManager(), new MemoryDataStorageManager(), new MemoryCommitLogManager(), null, null)) {
        manager.start();
        CreateTableSpaceStatement st1 = new CreateTableSpaceStatement("tblspace1", Collections.singleton(nodeId), nodeId, 1, 0, 0);
        manager.executeStatement(st1, StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        manager.waitForTablespace("tblspace1", 10000);
        Table table = Table.builder().tablespace("tblspace1").name("t1").column("id", ColumnTypes.STRING).column("n1", ColumnTypes.INTEGER).column("n2", ColumnTypes.INTEGER).column("name", ColumnTypes.STRING).primaryKey("id").build();
        CreateTableStatement st2 = new CreateTableStatement(table);
        manager.executeStatement(st2, StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        Index index = Index.builder().onTable(table).type(indexType).column("n1", ColumnTypes.INTEGER).build();
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('a',1,5,'n1')", Collections.emptyList());
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('b',2,5,'n1')", Collections.emptyList());
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('c',2,5,'n2')", Collections.emptyList());
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('d',2,5,'n2')", Collections.emptyList());
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('e',3,5,'n2')", Collections.emptyList());
        // create index, it will be built using existing data
        CreateIndexStatement st3 = new CreateIndexStatement(index);
        manager.executeStatement(st3, StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        {
            TranslatedQuery translated = manager.getPlanner().translate(TableSpace.DEFAULT, "SELECT * FROM tblspace1.t1 WHERE n1=2", Collections.emptyList(), true, true, false, -1);
            ScanStatement scan = translated.plan.mainStatement.unwrap(ScanStatement.class);
            assertTrue(scan.getPredicate().getIndexOperation() instanceof SecondaryIndexSeek);
            try (DataScanner scan1 = manager.scan(scan, translated.context, TransactionContext.NO_TRANSACTION)) {
                assertEquals(3, scan1.consume().size());
            }
        }
    }
}

Example 45 with CreateIndexStatement

use of herddb.model.commands.CreateIndexStatement in project herddb by diennea.

the class TableSpaceManager method executeStatementAsyncInternal.

private CompletableFuture<StatementExecutionResult> executeStatementAsyncInternal(Statement statement, StatementEvaluationContext context, TransactionContext transactionContext, boolean rollbackOnError) throws StatementExecutionException {
    Transaction transaction = transactions.get(transactionContext.transactionId);
    if (transaction != null && !transaction.tableSpace.equals(tableSpaceName)) {
        return Futures.exception(new StatementExecutionException("transaction " + transaction.transactionId + " is for tablespace " + transaction.tableSpace + ", not for " + tableSpaceName));
    }
    if (transactionContext.transactionId > 0 && transaction == null) {
        return Futures.exception(new StatementExecutionException("transaction " + transactionContext.transactionId + " not found on tablespace " + tableSpaceName));
    }
    boolean isTransactionCommand = statement instanceof CommitTransactionStatement || statement instanceof RollbackTransactionStatement || // AlterTable implictly commits the transaction
    statement instanceof AlterTableStatement;
    if (transaction != null) {
        transaction.touch();
        if (!isTransactionCommand) {
            transaction.increaseRefcount();
        }
    }
    CompletableFuture<StatementExecutionResult> res;
    try {
        if (statement instanceof TableAwareStatement) {
            res = executeTableAwareStatement(statement, transaction, context);
        } else if (statement instanceof SQLPlannedOperationStatement) {
            res = executePlannedOperationStatement(statement, transactionContext, context);
        } else if (statement instanceof BeginTransactionStatement) {
            if (transaction != null) {
                res = Futures.exception(new StatementExecutionException("transaction already started"));
            } else {
                res = beginTransactionAsync(context, true);
            }
        } else if (statement instanceof CommitTransactionStatement) {
            res = commitTransaction((CommitTransactionStatement) statement, context);
        } else if (statement instanceof RollbackTransactionStatement) {
            res = rollbackTransaction((RollbackTransactionStatement) statement, context);
        } else if (statement instanceof CreateTableStatement) {
            res = CompletableFuture.completedFuture(createTable((CreateTableStatement) statement, transaction, context));
        } else if (statement instanceof CreateIndexStatement) {
            res = CompletableFuture.completedFuture(createIndex((CreateIndexStatement) statement, transaction, context));
        } else if (statement instanceof DropTableStatement) {
            res = CompletableFuture.completedFuture(dropTable((DropTableStatement) statement, transaction, context));
        } else if (statement instanceof DropIndexStatement) {
            res = CompletableFuture.completedFuture(dropIndex((DropIndexStatement) statement, transaction, context));
        } else if (statement instanceof AlterTableStatement) {
            res = CompletableFuture.completedFuture(alterTable((AlterTableStatement) statement, transactionContext, context));
        } else {
            res = Futures.exception(new StatementExecutionException("unsupported statement " + statement).fillInStackTrace());
        }
    } catch (StatementExecutionException error) {
        res = Futures.exception(error);
    }
    if (transaction != null && !isTransactionCommand) {
        res = res.whenComplete((a, b) -> {
            transaction.decreaseRefCount();
        });
    }
    if (rollbackOnError) {
        long txId = transactionContext.transactionId;
        if (txId > 0) {
            res = res.whenComplete((xx, error) -> {
                if (error != null) {
                    LOGGER.log(Level.FINE, tableSpaceName + " force rollback of implicit transaction " + txId, error);
                    try {
                        rollbackTransaction(new RollbackTransactionStatement(tableSpaceName, txId), context).get();
                    } catch (InterruptedException ex) {
                        Thread.currentThread().interrupt();
                        error.addSuppressed(ex);
                    } catch (ExecutionException ex) {
                        error.addSuppressed(ex.getCause());
                    }
                    throw new HerdDBInternalException(error);
                }
            });
        }
    }
    return res;
}