Examples with NON_DETERMINISTIC com.facebook.presto.verifier.framework.LimitQueryDeterminismAnalysis.NON_DETERMINISTIC used on opensource projects

Example 1 with NON_DETERMINISTIC

use of com.facebook.presto.verifier.framework.LimitQueryDeterminismAnalysis.NON_DETERMINISTIC in project presto by prestodb.

the class LimitQueryDeterminismAnalyzer method analyzeLimitNoOrderBy.

private LimitQueryDeterminismAnalysis analyzeLimitNoOrderBy(Query newLimitQuery, long limit) {
    Query rowCountQuery = simpleQuery(new Select(false, ImmutableList.of(new SingleColumn(new FunctionCall(QualifiedName.of("count"), ImmutableList.of(new LongLiteral("1")))))), new TableSubquery(newLimitQuery));
    QueryResult<Long> result = callAndConsume(() -> prestoAction.execute(rowCountQuery, DETERMINISM_ANALYSIS_MAIN, resultSet -> Optional.of(resultSet.getLong(1))), stats -> stats.getQueryStats().map(QueryStats::getQueryId).ifPresent(determinismAnalysisDetails::setLimitQueryAnalysisQueryId));
    long rowCountHigherLimit = getOnlyElement(result.getResults());
    if (rowCountHigherLimit == rowCount) {
        return DETERMINISTIC;
    }
    if (rowCountHigherLimit > rowCount) {
        return NON_DETERMINISTIC;
    }
    return FAILED_DATA_CHANGED;
}