Examples with NON_DETERMINISTIC_LIMIT_CLAUSE com.facebook.presto.verifier.framework.DeterminismAnalysis.NON_DETERMINISTIC_LIMIT_CLAUSE used on opensource projects

Example 1 with NON_DETERMINISTIC_LIMIT_CLAUSE

use of com.facebook.presto.verifier.framework.DeterminismAnalysis.NON_DETERMINISTIC_LIMIT_CLAUSE in project presto by prestodb.

the class DeterminismAnalyzer method analyze.

private DeterminismAnalysis analyze(QueryObjectBundle control, ChecksumResult controlChecksum, DeterminismAnalysisDetails.Builder determinismAnalysisDetails) {
    // Handle mutable catalogs
    if (isNonDeterministicCatalogReferenced(control.getQuery())) {
        return NON_DETERMINISTIC_CATALOG;
    }
    // Handle limit query
    LimitQueryDeterminismAnalysis limitQueryAnalysis = new LimitQueryDeterminismAnalyzer(prestoAction, handleLimitQuery, control.getQuery(), controlChecksum.getRowCount(), determinismAnalysisDetails).analyze();
    switch(limitQueryAnalysis) {
        case NOT_RUN:
        case FAILED_QUERY_FAILURE:
        case DETERMINISTIC:
            // try the next analysis
            break;
        case NON_DETERMINISTIC:
            return NON_DETERMINISTIC_LIMIT_CLAUSE;
        case FAILED_DATA_CHANGED:
            return ANALYSIS_FAILED_DATA_CHANGED;
        default:
            throw new IllegalArgumentException(format("Invalid limitQueryAnalysis: %s", limitQueryAnalysis));
    }
    // Rerun control query multiple times
    List<Column> columns = getColumns(prestoAction, typeManager, control.getObjectName());
    Map<QueryBundle, DeterminismAnalysisRun.Builder> queryRuns = new HashMap<>();
    try {
        for (int i = 0; i < maxAnalysisRuns; i++) {
            QueryObjectBundle queryBundle = queryRewriter.rewriteQuery(sourceQuery.getQuery(CONTROL), CONTROL);
            DeterminismAnalysisRun.Builder run = determinismAnalysisDetails.addRun().setTableName(queryBundle.getObjectName().toString());
            queryRuns.put(queryBundle, run);
            // Rerun setup and main query
            queryBundle.getSetupQueries().forEach(query -> runAndConsume(() -> prestoAction.execute(query, DETERMINISM_ANALYSIS_SETUP), stats -> stats.getQueryStats().map(QueryStats::getQueryId).ifPresent(run::addSetupQueryId)));
            runAndConsume(() -> prestoAction.execute(queryBundle.getQuery(), DETERMINISM_ANALYSIS_MAIN), stats -> stats.getQueryStats().map(QueryStats::getQueryId).ifPresent(run::setQueryId));
            // Run checksum query
            Query checksumQuery = checksumValidator.generateChecksumQuery(queryBundle.getObjectName(), columns);
            ChecksumResult testChecksum = getOnlyElement(callAndConsume(() -> prestoAction.execute(checksumQuery, DETERMINISM_ANALYSIS_CHECKSUM, ChecksumResult::fromResultSet), stats -> stats.getQueryStats().map(QueryStats::getQueryId).ifPresent(run::setChecksumQueryId)).getResults());
            DeterminismAnalysis analysis = matchResultToDeterminism(match(checksumValidator, columns, columns, controlChecksum, testChecksum));
            if (analysis != DETERMINISTIC) {
                return analysis;
            }
        }
        return DETERMINISTIC;
    } catch (QueryException qe) {
        return ANALYSIS_FAILED_QUERY_FAILURE;
    } finally {
        if (runTeardown) {
            queryRuns.forEach((queryBundle, run) -> teardownSafely(prestoAction, Optional.of(queryBundle), queryStats -> queryStats.getQueryStats().map(QueryStats::getQueryId).ifPresent(run::addTeardownQueryId)));
        }
    }
}