Examples with Selection com.linkedin.pinot.common.request.Selection used on opensource projects

Example 1 with Selection

use of com.linkedin.pinot.common.request.Selection in project pinot by linkedin.

the class StarColumnListAstNode method updateBrokerRequest.

@Override
public void updateBrokerRequest(BrokerRequest brokerRequest) {
    Selection selection = new Selection();
    List<String> modifiableList = new ArrayList<>(1);
    modifiableList.add("*");
    selection.setSelectionColumns(modifiableList);
    brokerRequest.setSelections(selection);
}

Example 2 with Selection

use of com.linkedin.pinot.common.request.Selection in project pinot by linkedin.

the class OrderByAstNode method updateBrokerRequest.

@Override
public void updateBrokerRequest(BrokerRequest brokerRequest) {
    Selection selections = brokerRequest.getSelections();
    for (AstNode astNode : getChildren()) {
        if (astNode instanceof OrderByExpressionAstNode) {
            OrderByExpressionAstNode node = (OrderByExpressionAstNode) astNode;
            SelectionSort elem = new SelectionSort();
            elem.setColumn(node.getColumn());
            elem.setIsAsc("asc".equalsIgnoreCase(node.getOrdering()));
            selections.addToSelectionSortSequence(elem);
        } else {
            throw new Pql2CompilationException("Child node of ORDER BY node is not an expression node");
        }
    }
}

Example 3 with Selection

use of com.linkedin.pinot.common.request.Selection in project pinot by linkedin.

the class BrokerRequestSerializationTest method testSerialization.

@Test
public static void testSerialization() throws TException {
    BrokerRequest req = new BrokerRequest();
    // Populate Query Type
    QueryType type = new QueryType();
    type.setHasAggregation(true);
    type.setHasFilter(true);
    type.setHasSelection(true);
    type.setHasGroup_by(true);
    req.setQueryType(type);
    // Populate Query source
    QuerySource s = new QuerySource();
    s.setTableName("dummy");
    req.setQuerySource(s);
    req.setDuration("dummy");
    req.setTimeInterval("dummy");
    //Populate Group-By
    GroupBy groupBy = new GroupBy();
    List<String> columns = new ArrayList<String>();
    columns.add("dummy1");
    columns.add("dummy2");
    groupBy.setColumns(columns);
    groupBy.setTopN(100);
    req.setGroupBy(groupBy);
    //Populate Selections
    Selection sel = new Selection();
    sel.setSize(1);
    SelectionSort s2 = new SelectionSort();
    s2.setColumn("dummy1");
    s2.setIsAsc(true);
    sel.addToSelectionSortSequence(s2);
    sel.addToSelectionColumns("dummy1");
    req.setSelections(sel);
    //Populate FilterQuery
    FilterQuery q1 = new FilterQuery();
    q1.setId(1);
    q1.setColumn("dummy1");
    q1.addToValue("dummy1");
    q1.addToNestedFilterQueryIds(2);
    q1.setOperator(FilterOperator.AND);
    FilterQuery q2 = new FilterQuery();
    q2.setId(2);
    q2.setColumn("dummy2");
    q2.addToValue("dummy2");
    q2.setOperator(FilterOperator.AND);
    FilterQueryMap map = new FilterQueryMap();
    map.putToFilterQueryMap(1, q1);
    map.putToFilterQueryMap(2, q2);
    req.setFilterQuery(q1);
    req.setFilterSubQueryMap(map);
    //Populate Aggregations
    AggregationInfo agg = new AggregationInfo();
    agg.setAggregationType("dummy1");
    agg.putToAggregationParams("key1", "dummy1");
    req.addToAggregationsInfo(agg);
    TSerializer normalSerializer = new TSerializer();
    TSerializer compactSerializer = new TSerializer(new TCompactProtocol.Factory());
    normalSerializer.serialize(req);
    compactSerializer.serialize(req);
//    int numRequests = 100000;
//    TimerContext t = MetricsHelper.startTimer();
//    TSerializer serializer = new TSerializer(new TCompactProtocol.Factory());
//    //TSerializer serializer = new TSerializer();
//    //Compact : Size 183 , Serialization Latency : 0.03361ms
//    // Normal : Size 385 , Serialization Latency : 0.01144ms
//
//    for (int i = 0; i < numRequests; i++) {
//      try {
//        serializer.serialize(req);
//        //System.out.println(s3.length);
//        //break;
//      } catch (TException e) {
//        e.printStackTrace();
//      }
//    }
//    t.stop();
//    System.out.println("Latency is :" + (t.getLatencyMs() / (float) numRequests));
}

Example 4 with Selection

use of com.linkedin.pinot.common.request.Selection in project pinot by linkedin.

the class OutputColumnAstNode method updateBrokerRequest.

@Override
public void updateBrokerRequest(BrokerRequest brokerRequest) {
    for (AstNode astNode : getChildren()) {
        // If the column is a function call, it must be an aggregation function
        if (astNode instanceof FunctionCallAstNode) {
            FunctionCallAstNode node = (FunctionCallAstNode) astNode;
            brokerRequest.addToAggregationsInfo(node.buildAggregationInfo());
        } else if (astNode instanceof IdentifierAstNode) {
            Selection selection = brokerRequest.getSelections();
            if (selection == null) {
                selection = new Selection();
                brokerRequest.setSelections(selection);
            }
            IdentifierAstNode node = (IdentifierAstNode) astNode;
            selection.addToSelectionColumns(node.getName());
        } else {
            throw new Pql2CompilationException("Output column is neither a function nor an identifier");
        }
    }
}

Example 5 with Selection

use of com.linkedin.pinot.common.request.Selection in project pinot by linkedin.

the class SelectAstNode method updateBrokerRequest.

@Override
public void updateBrokerRequest(BrokerRequest brokerRequest) {
    // Set the query source
    QuerySource querySource = new QuerySource();
    querySource.setTableName(_resourceName);
    brokerRequest.setQuerySource(querySource);
    sendBrokerRequestUpdateToChildren(brokerRequest);
    // If there is a selection, set its limit if applicable
    Selection selections = brokerRequest.getSelections();
    if (selections != null) {
        if (_recordLimit != -1) {
            selections.setSize(_recordLimit);
        }
        if (_offset != -1) {
            selections.setOffset(_offset);
        }
    }
    // If there is a topN clause, set it on the group by
    GroupBy groupBy = brokerRequest.getGroupBy();
    if (groupBy != null) {
        if (_topN != -1) {
            groupBy.setTopN(_topN);
        } else {
            // Pinot quirk: default to top 10
            groupBy.setTopN(10);
        }
    }
    // Pinot quirk: if there is both a selection and an aggregation, remove the selection
    if (brokerRequest.getAggregationsInfoSize() != 0 && brokerRequest.isSetSelections()) {
        brokerRequest.setSelections(null);
    }
}