Examples with Statement io.crate.sql.tree.Statement used on opensource projects

Example 11 with Statement

use of io.crate.sql.tree.Statement in project crate by crate.

the class TestStatementBuilder method testDropSnapshotStmtBuilder.

@Test
public void testDropSnapshotStmtBuilder() {
    Statement statement = SqlParser.createStatement("DROP SNAPSHOT my_repo.my_snapshot");
    assertThat(statement.toString(), is("DropSnapshot{name=my_repo.my_snapshot}"));
}

Example 12 with Statement

use of io.crate.sql.tree.Statement in project crate by crate.

the class TreeAssertions method assertFormattedSql.

static void assertFormattedSql(Node expected) {
    String formatted = formatSql(expected);
    // verify round-trip of formatting already-formatted SQL
    Statement actual = parseFormatted(formatted, expected);
    assertEquals(formatSql(actual), formatted);
    // compare parsed tree with parsed tree of formatted SQL
    if (!actual.equals(expected)) {
        // simplify finding the non-equal part of the tree
        assertListEquals(linearizeTree(actual), linearizeTree(expected));
    }
    assertEquals(actual, expected);
}

Example 13 with Statement

use of io.crate.sql.tree.Statement in project crate by crate.

the class Session method quickExec.

/**
 * Execute a query in one step, avoiding the parse/bind/execute/sync procedure.
 * Opposed to using parse/bind/execute/sync this method is thread-safe.
 *
 * @param parse A function to parse the statement; This can be used to cache the parsed statement.
 *              Use {@link #quickExec(String, ResultReceiver, Row)} to use the regular parser
 */
public void quickExec(String statement, Function<String, Statement> parse, ResultReceiver<?> resultReceiver, Row params) {
    CoordinatorTxnCtx txnCtx = new CoordinatorTxnCtx(sessionContext);
    Statement parsedStmt = parse.apply(statement);
    AnalyzedStatement analyzedStatement = analyzer.analyze(parsedStmt, sessionContext, ParamTypeHints.EMPTY);
    RoutingProvider routingProvider = new RoutingProvider(Randomness.get().nextInt(), planner.getAwarenessAttributes());
    UUID jobId = UUIDs.dirtyUUID();
    ClusterState clusterState = planner.currentClusterState();
    PlannerContext plannerContext = new PlannerContext(clusterState, routingProvider, jobId, txnCtx, nodeCtx, 0, params);
    Plan plan;
    try {
        plan = planner.plan(analyzedStatement, plannerContext);
    } catch (Throwable t) {
        jobsLogs.logPreExecutionFailure(jobId, statement, SQLExceptions.messageOf(t), sessionContext.sessionUser());
        throw t;
    }
    StatementClassifier.Classification classification = StatementClassifier.classify(plan);
    jobsLogs.logExecutionStart(jobId, statement, sessionContext.sessionUser(), classification);
    JobsLogsUpdateListener jobsLogsUpdateListener = new JobsLogsUpdateListener(jobId, jobsLogs);
    if (!analyzedStatement.isWriteOperation()) {
        resultReceiver = new RetryOnFailureResultReceiver(executor.clusterService(), clusterState, // clusterState at the time of the index check is used
        indexName -> clusterState.metadata().hasIndex(indexName), resultReceiver, jobId, (newJobId, retryResultReceiver) -> retryQuery(newJobId, analyzedStatement, routingProvider, new RowConsumerToResultReceiver(retryResultReceiver, 0, jobsLogsUpdateListener), params, txnCtx, nodeCtx));
    }
    RowConsumerToResultReceiver consumer = new RowConsumerToResultReceiver(resultReceiver, 0, jobsLogsUpdateListener);
    plan.execute(executor, plannerContext, consumer, params, SubQueryResults.EMPTY);
}

Example 14 with Statement

use of io.crate.sql.tree.Statement in project crate by crate.

the class Session method parse.

public void parse(String statementName, String query, List<DataType> paramTypes) {
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("method=parse stmtName={} query={} paramTypes={}", statementName, query, paramTypes);
    }
    Statement statement;
    try {
        statement = SqlParser.createStatement(query);
    } catch (Throwable t) {
        if ("".equals(query)) {
            statement = EMPTY_STMT;
        } else {
            jobsLogs.logPreExecutionFailure(UUIDs.dirtyUUID(), query, SQLExceptions.messageOf(t), sessionContext.sessionUser());
            throw t;
        }
    }
    analyze(statementName, statement, paramTypes, query);
}

Example 15 with Statement

use of io.crate.sql.tree.Statement in project crate by crate.

the class Session method bulkExec.

private CompletableFuture<?> bulkExec(Statement statement, List<DeferredExecution> toExec) {
    assert toExec.size() >= 1 : "Must have at least 1 deferred execution for bulk exec";
    var jobId = UUIDs.dirtyUUID();
    var routingProvider = new RoutingProvider(Randomness.get().nextInt(), planner.getAwarenessAttributes());
    var clusterState = executor.clusterService().state();
    var txnCtx = new CoordinatorTxnCtx(sessionContext);
    var plannerContext = new PlannerContext(clusterState, routingProvider, jobId, txnCtx, nodeCtx, 0, null);
    PreparedStmt firstPreparedStatement = toExec.get(0).portal().preparedStmt();
    AnalyzedStatement analyzedStatement = firstPreparedStatement.analyzedStatement();
    Plan plan;
    try {
        plan = planner.plan(analyzedStatement, plannerContext);
    } catch (Throwable t) {
        jobsLogs.logPreExecutionFailure(jobId, firstPreparedStatement.rawStatement(), SQLExceptions.messageOf(t), sessionContext.sessionUser());
        throw t;
    }
    jobsLogs.logExecutionStart(jobId, firstPreparedStatement.rawStatement(), sessionContext.sessionUser(), StatementClassifier.classify(plan));
    var bulkArgs = Lists2.map(toExec, x -> (Row) new RowN(x.portal().params().toArray()));
    List<CompletableFuture<Long>> rowCounts = plan.executeBulk(executor, plannerContext, bulkArgs, SubQueryResults.EMPTY);
    CompletableFuture<Void> allRowCounts = CompletableFuture.allOf(rowCounts.toArray(new CompletableFuture[0]));
    List<CompletableFuture<?>> resultReceiverFutures = Lists2.map(toExec, x -> x.resultReceiver().completionFuture());
    CompletableFuture<Void> allResultReceivers = CompletableFuture.allOf(resultReceiverFutures.toArray(new CompletableFuture[0]));
    return allRowCounts.exceptionally(// swallow exception - failures are set per item in emitResults
    t -> null).thenAccept(ignored -> emitRowCountsToResultReceivers(jobId, jobsLogs, toExec, rowCounts)).runAfterBoth(allResultReceivers, () -> {
    });
}