Package com.facebook.presto.spi.block

Examples of com.facebook.presto.spi.block.BlockCursor.advanceNextPosition()

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        protected void processInput(Block block, Optional<Block> maskBlock, Optional<Block> sampleWeightBlock)
        {
            BlockCursor values = block.cursor();

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                if (!values.isNull()) {
                    notNull = true;
                    min = Math.min(min, values.getLong());
                }
            }
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            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(percentiles.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                checkState(sampleWeights == null || sampleWeights.advanceNextPosition());
                long sampleWeight = SimpleAggregationFunction.computeSampleWeight(masks, sampleWeights);

                long groupId = groupIdsBlock.getGroupId(position);

                // skip null values
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            digests.ensureCapacity(groupIdsBlock.getGroupCount());

            BlockCursor intermediates = block.cursor();

            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());

                if (!intermediates.isNull()) {
                    long groupId = groupIdsBlock.getGroupId(position);

                    DigestAndPercentile currentValue = digests.get(groupId);
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            for (int position = 0; position < page.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(percentiles.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                checkState(sampleWeights == null || sampleWeights.advanceNextPosition());
                long sampleWeight = SimpleAggregationFunction.computeSampleWeight(masks, sampleWeights);

                if (!values.isNull() && sampleWeight > 0) {
                    addValue(digest, values, parameterType, sampleWeight);
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            checkArgument(valueChannel == -1, "Intermediate input is only allowed for a final aggregation");

            BlockCursor intermediates = block.cursor();

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());
                if (!intermediates.isNull()) {
                    SliceInput input = intermediates.getSlice().getInput();
                    // read digest
                    digest.merge(QuantileDigest.deserialize(input));
                    // read percentile
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                masks = maskBlock.get().cursor();
            }

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                if (!values.isNull() && (masks == null || masks.getBoolean())) {
                    add(values);
                }
            }
        }
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                masks = maskBlock.get().cursor();
            }

            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());

                // skip null values
                if (!values.isNull() && (masks == null || masks.getBoolean())) {
                    add(groupIdsBlock.getGroupId(position), values);
                }
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            minValues.ensureCapacity(groupIdsBlock.getGroupCount());

            BlockCursor values = valuesBlock.cursor();

            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());

                // skip null values
                if (!values.isNull()) {
                    long groupId = groupIdsBlock.getGroupId(position);
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                            minValues.set(groupId, TRUE_VALUE);
                        }
                    }
                }
            }
            checkState(!values.advanceNextPosition());
        }

        @Override
        public void evaluateFinal(int groupId, BlockBuilder output)
        {
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        protected void processInput(Block block, Optional<Block> maskBlock, Optional<Block> sampleWeightBlock)
        {
            BlockCursor values = block.cursor();

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                if (!values.isNull()) {
                    notNull = true;

                    // if value is false, update the max to false
                    if (!values.getBoolean()) {
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