Examples with NoFilterVectorOffset org.apache.druid.segment.vector.NoFilterVectorOffset used on opensource projects

Example 1 with NoFilterVectorOffset

use of org.apache.druid.segment.vector.NoFilterVectorOffset in project druid by druid-io.

the class CardinalityVectorAggregatorTest method testAggregateDouble.

@Test
public void testAggregateDouble() {
    final double[] values = { 1, 2, 2, 3, 3, 3, 0 };
    final boolean[] nulls = NullHandling.replaceWithDefault() ? null : new boolean[] { false, false, false, false, false, false, true };
    final CardinalityVectorAggregator aggregator = new CardinalityVectorAggregator(Collections.singletonList(new DoubleCardinalityVectorProcessor(new BaseDoubleVectorValueSelector(new NoFilterVectorOffset(values.length, 0, values.length)) {

        @Override
        public double[] getDoubleVector() {
            return values;
        }

        @Nullable
        @Override
        public boolean[] getNullVector() {
            return nulls;
        }
    })));
    testAggregate(aggregator, values.length, NullHandling.replaceWithDefault() ? 4 : 3);
}

Example 2 with NoFilterVectorOffset

use of org.apache.druid.segment.vector.NoFilterVectorOffset in project druid by druid-io.

the class QueryableIndexCursorSequenceBuilder method buildVectorized.

public VectorCursor buildVectorized(final int vectorSize) {
    // Sanity check - matches QueryableIndexStorageAdapter.canVectorize
    Preconditions.checkState(!descending, "!descending");
    final Map<String, BaseColumn> columnCache = new HashMap<>();
    final Closer closer = Closer.create();
    NumericColumn timestamps = null;
    final int startOffset;
    final int endOffset;
    if (interval.getStartMillis() > minDataTimestamp) {
        timestamps = (NumericColumn) index.getColumnHolder(ColumnHolder.TIME_COLUMN_NAME).getColumn();
        closer.register(timestamps);
        startOffset = timeSearch(timestamps, interval.getStartMillis(), 0, index.getNumRows());
    } else {
        startOffset = 0;
    }
    if (interval.getEndMillis() <= maxDataTimestamp) {
        if (timestamps == null) {
            timestamps = (NumericColumn) index.getColumnHolder(ColumnHolder.TIME_COLUMN_NAME).getColumn();
            closer.register(timestamps);
        }
        endOffset = timeSearch(timestamps, interval.getEndMillis(), startOffset, index.getNumRows());
    } else {
        endOffset = index.getNumRows();
    }
    final VectorOffset baseOffset = filterBitmap == null ? new NoFilterVectorOffset(vectorSize, startOffset, endOffset) : new BitmapVectorOffset(vectorSize, filterBitmap, startOffset, endOffset);
    // baseColumnSelectorFactory using baseOffset is the column selector for filtering.
    final VectorColumnSelectorFactory baseColumnSelectorFactory = makeVectorColumnSelectorFactoryForOffset(columnCache, baseOffset, closer);
    if (postFilter == null) {
        return new QueryableIndexVectorCursor(baseColumnSelectorFactory, baseOffset, vectorSize, closer);
    } else {
        final VectorOffset filteredOffset = FilteredVectorOffset.create(baseOffset, baseColumnSelectorFactory, postFilter);
        // Now create the cursor and column selector that will be returned to the caller.
        // 
        // There is an inefficiency with how we do things here: this cursor (the one that will be provided to the
        // caller) does share a columnCache with "baseColumnSelectorFactory", but it *doesn't* share vector data. This
        // means that if the caller wants to read from a column that is also used for filtering, the underlying column
        // object will get hit twice for some of the values (anything that matched the filter). This is probably most
        // noticeable if it causes thrashing of decompression buffers due to out-of-order reads. I haven't observed
        // this directly but it seems possible in principle.
        // baseColumnSelectorFactory using baseOffset is the column selector for filtering.
        final VectorColumnSelectorFactory filteredColumnSelectorFactory = makeVectorColumnSelectorFactoryForOffset(columnCache, filteredOffset, closer);
        return new QueryableIndexVectorCursor(filteredColumnSelectorFactory, filteredOffset, vectorSize, closer);
    }
}

Example 3 with NoFilterVectorOffset

use of org.apache.druid.segment.vector.NoFilterVectorOffset in project druid by druid-io.

the class BaseColumnarLongsBenchmark method setupFilters.

void setupFilters(int rows, double filteredRowCountPercentage, String filterDistribution) {
    final int filteredRowCount = (int) Math.floor(rows * filteredRowCountPercentage);
    if (filteredRowCount < rows) {
        switch(filterDistribution) {
            case "random":
                setupRandomFilter(rows, filteredRowCount);
                break;
            case "contiguous-start":
                offset = new SimpleAscendingOffset(rows);
                vectorOffset = new NoFilterVectorOffset(VECTOR_SIZE, 0, filteredRowCount);
                break;
            case "contiguous-end":
                offset = new SimpleAscendingOffset(rows);
                vectorOffset = new NoFilterVectorOffset(VECTOR_SIZE, rows - filteredRowCount, rows);
                break;
            case "contiguous-bitmap-start":
                setupContiguousBitmapFilter(rows, filteredRowCount, 0);
                break;
            case "contiguous-bitmap-end":
                setupContiguousBitmapFilter(rows, filteredRowCount, rows - filteredRowCount);
                break;
            case "chunky-1000":
                setupChunkyFilter(rows, filteredRowCount, 1000);
                break;
            case "chunky-10000":
                setupChunkyFilter(rows, filteredRowCount, 10000);
                break;
            default:
                throw new IllegalArgumentException("unknown filter distribution");
        }
    } else {
        offset = new SimpleAscendingOffset(rows);
        vectorOffset = new NoFilterVectorOffset(VECTOR_SIZE, 0, rows);
    }
}

Example 4 with NoFilterVectorOffset

use of org.apache.druid.segment.vector.NoFilterVectorOffset in project druid by druid-io.

the class CardinalityVectorAggregatorTest method testAggregateFloat.

@Test
public void testAggregateFloat() {
    final float[] values = { 1, 2, 2, 3, 3, 3, 0 };
    final boolean[] nulls = NullHandling.replaceWithDefault() ? null : new boolean[] { false, false, false, false, false, false, true };
    final CardinalityVectorAggregator aggregator = new CardinalityVectorAggregator(Collections.singletonList(new FloatCardinalityVectorProcessor(new BaseFloatVectorValueSelector(new NoFilterVectorOffset(values.length, 0, values.length)) {

        @Override
        public float[] getFloatVector() {
            return values;
        }

        @Nullable
        @Override
        public boolean[] getNullVector() {
            return nulls;
        }
    })));
    testAggregate(aggregator, values.length, NullHandling.replaceWithDefault() ? 4 : 3);
}

Example 5 with NoFilterVectorOffset

use of org.apache.druid.segment.vector.NoFilterVectorOffset in project druid by druid-io.

the class CardinalityVectorAggregatorTest method testAggregateLong.

@Test
public void testAggregateLong() {
    final long[] values = { 1, 2, 2, 3, 3, 3, 0 };
    final boolean[] nulls = NullHandling.replaceWithDefault() ? null : new boolean[] { false, false, false, false, false, false, true };
    final CardinalityVectorAggregator aggregator = new CardinalityVectorAggregator(Collections.singletonList(new LongCardinalityVectorProcessor(new BaseLongVectorValueSelector(new NoFilterVectorOffset(values.length, 0, values.length)) {

        @Override
        public long[] getLongVector() {
            return values;
        }

        @Nullable
        @Override
        public boolean[] getNullVector() {
            return nulls;
        }
    })));
    testAggregate(aggregator, values.length, NullHandling.replaceWithDefault() ? 4 : 3);
}