Package com.foundationdb.qp.operator

Examples of com.foundationdb.qp.operator.Cursor

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                    groupScan_Default(group),
                    n),
                tRowType,
                ordering,
                SortOption.PRESERVE_DUPLICATES);
        Cursor cursor = cursor(plan, queryContext, queryBindings);
        cursor.openTopLevel();
        while (cursor.next() != null) {
        }
        cursor.closeTopLevel();
        if (print) {
            System.out.println("---------------------------------------------------------------------");
            System.out.println(String.format("Sort %s on field %s", n, field == 0 ? "id" : "rand"));
            TapReport[] reports = Tap.getReport(OPERATOR_TAPS);
            for (TapReport report : reports) {
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        ordering.append(field(idxRowType, 0), true);
        IndexKeyRange keyRange = IndexKeyRange.bounded(idxRowType, lo, true, hi, true);
        Operator plan = indexScan_Default(idxRowType, keyRange, ordering);
        long start = System.nanoTime();
        for (int r = 0; r < runs; r++) {
            Cursor cursor = cursor(plan, queryContext, queryBindings);
            cursor.openTopLevel();
            for (int s = 0; s < sequentialAccessesPerRandom; s++) {
                Row row = cursor.next();
                assert row != null;
            }
            cursor.closeTopLevel();
        }
        long end = System.nanoTime();
        if (label != null) {
            double averageMsec = (double) (end - start) / (1000 * runs);
            System.out.println(String.format("%s:  %s usec", label, averageMsec));
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                orderRowType,
                itemRowType,
                JoinType.INNER_JOIN);
        Tap.setEnabled(".*", true);
        for (int s = 0; s < SCANS; s++) {
            Cursor cursor = cursor(plan, queryContext, queryBindings);
            cursor.openTopLevel();
            while (cursor.next() != null) {
            }
            cursor.closeTopLevel();
        }
        TapReport[] reports = Tap.getReport(".*");
        for (TapReport report : reports) {
            System.out.println(report);
        }
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                Schema schema = SchemaCache.globalSchema(getServiceHolder().getSchemaManager().getAis(session));
                Operator plan = operatorCreator.create(schema);
                StoreAdapter adapter = getServiceHolder().getStore().createAdapter(session, schema);
                QueryContext context = new SimpleQueryContext(adapter);
                QueryBindings bindings = context.createBindings();
                Cursor cursor = API.cursor(plan, context, bindings);
                cursor.openTopLevel();
                try {
                    Row row;
                    while((row = cursor.next()) != null) {
                        getScannedRows().add(row);
                        switch(getScannedRows().size()) {
                            case 1: to(Stage.SCAN_FIRST_ROW); break;
                            case 2: to(Stage.SCAN_SECOND_ROW); break;
                        }
                    }
                } finally {
                    cursor.closeTopLevel();
                }
                to(Stage.POST_SCAN);

                to(Stage.PRE_COMMIT);
                getServiceHolder().getTransactionService().commitTransaction(session);
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                    JoinType.INNER_JOIN,
                    IntersectOption.OUTPUT_LEFT,
                    null);
        long start = System.nanoTime();
        for (int r = 0; r < runs; r++) {
            Cursor cursor = cursor(intersect, queryContext, queryBindings);
            cursor.openTopLevel();
            while (cursor.next() != null);
        }
        long stop = System.nanoTime();
        long intersectNsec = stop - start - timeLeftSetup.elapsedNsec() - timeRightSetup.elapsedNsec();
        if (label != null) {
            // Report the difference
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        long start;
        long stop;
        // Measure time for setup
        start = System.nanoTime();
        for (int r = 0; r < runs; r++) {
            Cursor cursor = cursor(setup, queryContext, queryBindings);
            cursor.openTopLevel();
            while (cursor.next() != null);
        }
        stop = System.nanoTime();
        long setupNsec = stop - start;
        // Measure time for complete plan
        start = System.nanoTime();
        for (int r = 0; r < runs; r++) {
            Cursor cursor = cursor(sort, queryContext, queryBindings);
            cursor.openTopLevel();
            while (cursor.next() != null);
        }
        stop = System.nanoTime();
        long planNsec = stop - start;
        if (report) {
            // Report the difference
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                rootRowType,
                innerPlan.rowType(),
                0);
        long start = System.nanoTime();
        for (int r = 0; r < runs; r++) {
            Cursor cursor = cursor(plan, queryContext, queryBindings);
            cursor.openTopLevel();
            while (cursor.next() != null);
        }
        long stop = System.nanoTime();
        long productNsec = stop - start - timedOuter.elapsedNsec() - timedInner.elapsedNsec();
        if (report) {
            // Report the difference
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                rootRowType,
                innerPlan.rowType(),
                0);
        long start = System.nanoTime();
        for (int r = 0; r < runs; r++) {
            Cursor cursor = cursor(plan, queryContext, queryBindings);
            cursor.openTopLevel();
            while (cursor.next() != null);
        }
        long stop = System.nanoTime();
        long productNsec = stop - start - timedOuter.elapsedNsec() - timedInner.elapsedNsec();
        if (report) {
            // Report the difference
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        }
    }

    private void dump(Operator plan)
    {
        Cursor cursor = cursor(plan, queryContext, queryBindings);
        cursor.openTopLevel();
        Row row;
        while ((row = cursor.next()) != null) {
            System.out.println(row);
        }
    }
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        ordering.append(field(idxRowType, 0), true);
        IndexKeyRange keyRange = IndexKeyRange.bounded(idxRowType, lo, true, hi, true);
        Operator plan = indexScan_Default(idxRowType, keyRange, ordering);
        long start = System.nanoTime();
        for (int r = 0; r < runs; r++) {
            Cursor cursor = cursor(plan, queryContext, queryBindings);
            cursor.openTopLevel();
            for (int s = 0; s < sequentialAccessesPerRandom; s++) {
                Row row = cursor.next();
                assert row != null;
            }
            cursor.close();
        }
        long end = System.nanoTime();
        if (label != null) {
            double averageUsec = (end - start) / (1000.0 * runs * sequentialAccessesPerRandom);
            System.out.println(String.format("SEQUENTIAL %s - %s:  %s usec/row", label, sequentialAccessesPerRandom, averageUsec));
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Related Classes of com.foundationdb.qp.operator.Cursor

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  • com.foundationdb.server.service.is.ServerSchemaTablesServiceIT
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  • com.foundationdb.server.service.restdml.InsertProcessor
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  • com.foundationdb.server.service.text.FullTextIndexServiceImpl
  • com.foundationdb.server.store.AbstractStore
  • com.foundationdb.server.store.OnlineHelper
  • com.foundationdb.server.store.StoreGIMaintenance
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