Package com.facebook.presto.spi.block

Examples of com.facebook.presto.spi.block.SortOrder

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        private int compare(int position, Block[] blocks, Block[] currentMax)
        {
            for (int i = 0; i < sortChannels.size(); i++) {
                int sortChannel = sortChannels.get(i);
                SortOrder sortOrder = sortOrders.get(i);

                Block block = blocks[sortChannel];
                Block currentMaxValue = currentMax[sortChannel];

                // compare the right value to the left block but negate the result since we are evaluating in the opposite order
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        @Override
        public int compare(Block[] leftRow, Block[] rightRow)
        {
            for (int index = 0; index < sortChannels.size(); index++) {
                int channel = sortChannels.get(index);
                SortOrder sortOrder = sortOrders.get(index);

                Block left = leftRow[channel];
                Block right = rightRow[channel];

                int comparison = left.compareTo(sortOrder, 0, right, 0);
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        private int compare(BlockCursor[] cursors, RandomAccessBlock[] currentMax)
        {
            for (int i = 0; i < sortChannels.size(); i++) {
                int sortChannel = sortChannels.get(i);
                SortOrder sortOrder = sortOrders.get(i);

                BlockCursor cursor = cursors[sortChannel];
                RandomAccessBlock currentMaxValue = currentMax[sortChannel];

                // compare the right value to the left cursor but negate the result since we are evaluating in the opposite order
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        @Override
        public int compare(RandomAccessBlock[] leftRow, RandomAccessBlock[] rightRow)
        {
            for (int index = 0; index < sortChannels.size(); index++) {
                int channel = sortChannels.get(index);
                SortOrder sortOrder = sortOrders.get(index);

                RandomAccessBlock left = leftRow[channel];
                RandomAccessBlock right = rightRow[channel];

                int comparison = left.compareTo(sortOrder, 0, right, 0);
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                .invokeStatic(SyntheticAddress.class, "decodePosition", int.class, long.class)
                .putVariable(rightBlockPosition);

        for (int i = 0; i < sortChannels.size(); i++) {
            int sortChannel = sortChannels.get(i);
            SortOrder sortOrder = sortOrders.get(i);

            Block block = new Block(compilerContext)
                    .setDescription("compare channel " + sortChannel + " " + sortOrder);

            block.comment("push leftBlock -- pagesIndex.getChannel(sortChannel).get(leftBlockIndex)")
                    .getVariable("pagesIndex")
                    .push(sortChannel)
                    .invokeVirtual(PagesIndex.class, "getChannel", ObjectArrayList.class, int.class)
                    .getVariable(leftBlockIndex)
                    .invokeVirtual(ObjectArrayList.class, "get", Object.class, int.class)
                    .checkCast(RandomAccessBlock.class);

            block.comment("push sortOrder")
                    .getStaticField(SortOrder.class, sortOrder.name(), SortOrder.class);

            block.comment("push leftBlockPosition")
                    .getVariable(leftBlockPosition);

            block.comment("push rightBlock -- pagesIndex.getChannel(sortChannel).get(rightBlockIndex)")
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                .invokeStatic(SyntheticAddress.class, "decodePosition", int.class, long.class)
                .putVariable(rightBlockPosition);

        for (int i = 0; i < sortChannels.size(); i++) {
            int sortChannel = sortChannels.get(i);
            SortOrder sortOrder = sortOrders.get(i);

            Block block = new Block(compilerContext)
                    .setDescription("compare channel " + sortChannel + " " + sortOrder);

            block.comment("push leftBlock -- pagesIndex.getChannel(sortChannel).get(leftBlockIndex)")
                    .getVariable("pagesIndex")
                    .push(sortChannel)
                    .invokeVirtual(PagesIndex.class, "getChannel", ObjectArrayList.class, int.class)
                    .getVariable(leftBlockIndex)
                    .invokeVirtual(ObjectArrayList.class, "get", Object.class, int.class)
                    .checkCast(com.facebook.presto.spi.block.Block.class);

            block.comment("push sortOrder")
                    .getStaticField(SortOrder.class, sortOrder.name(), SortOrder.class);

            block.comment("push leftBlockPosition")
                    .getVariable(leftBlockPosition);

            block.comment("push rightBlock -- pagesIndex.getChannel(sortChannel).get(rightBlockIndex)")
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        private int compare(BlockCursor[] cursors, Block[] currentMax)
        {
            for (int i = 0; i < sortChannels.size(); i++) {
                int sortChannel = sortChannels.get(i);
                SortOrder sortOrder = sortOrders.get(i);

                BlockCursor cursor = cursors[sortChannel];
                Block currentMaxValue = currentMax[sortChannel];

                // compare the right value to the left cursor but negate the result since we are evaluating in the opposite order
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        @Override
        public int compare(Block[] leftRow, Block[] rightRow)
        {
            for (int index = 0; index < sortChannels.size(); index++) {
                int channel = sortChannels.get(index);
                SortOrder sortOrder = sortOrders.get(index);

                Block left = leftRow[channel];
                Block right = rightRow[channel];

                int comparison = left.compareTo(sortOrder, 0, right, 0);
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                .comment("int rightBlockPosition = decodePosition(rightPageAddress)")
                .append(rightBlockPosition.set(invokeStatic(SyntheticAddress.class, "decodePosition", int.class, rightPageAddress)));

        for (int i = 0; i < sortChannels.size(); i++) {
            int sortChannel = sortChannels.get(i);
            SortOrder sortOrder = sortOrders.get(i);

            Block block = new Block(context)
                    .setDescription("compare channel " + sortChannel + " " + sortOrder);

            Type sortType = sortTypes.get(i);

            ByteCodeExpression leftBlock = context.getVariable("pagesIndex")
                    .invoke("getChannel", ObjectArrayList.class, constantInt(sortChannel))
                    .invoke("get", Object.class, leftBlockIndex)
                    .cast(com.facebook.presto.spi.block.Block.class);

            ByteCodeExpression rightBlock = context.getVariable("pagesIndex")
                    .invoke("getChannel", ObjectArrayList.class, constantInt(sortChannel))
                    .invoke("get", Object.class, rightBlockIndex)
                    .cast(com.facebook.presto.spi.block.Block.class);

            block.append(getStatic(SortOrder.class, sortOrder.name())
                    .invoke("compareBlockValue",
                            int.class,
                            ImmutableList.of(Type.class, com.facebook.presto.spi.block.Block.class, int.class, com.facebook.presto.spi.block.Block.class, int.class),
                            constantType(context, callSiteBinder, sortType),
                            leftBlock,
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                .comment("int rightBlockPosition = decodePosition(rightPageAddress)")
                .append(rightBlockPosition.set(invokeStatic(SyntheticAddress.class, "decodePosition", int.class, rightPageAddress)));

        for (int i = 0; i < sortChannels.size(); i++) {
            int sortChannel = sortChannels.get(i);
            SortOrder sortOrder = sortOrders.get(i);

            Block block = new Block(context)
                    .setDescription("compare channel " + sortChannel + " " + sortOrder);

            Type sortType = sortTypes.get(i);

            ByteCodeExpression leftBlock = context.getVariable("pagesIndex")
                    .invoke("getChannel", ObjectArrayList.class, constantInt(sortChannel))
                    .invoke("get", Object.class, leftBlockIndex)
                    .cast(com.facebook.presto.spi.block.Block.class);

            ByteCodeExpression rightBlock = context.getVariable("pagesIndex")
                    .invoke("getChannel", ObjectArrayList.class, constantInt(sortChannel))
                    .invoke("get", Object.class, rightBlockIndex)
                    .cast(com.facebook.presto.spi.block.Block.class);

            block.append(getStatic(SortOrder.class, sortOrder.name())
                    .invoke("compareBlockValue",
                            int.class,
                            ImmutableList.of(Type.class, com.facebook.presto.spi.block.Block.class, int.class, com.facebook.presto.spi.block.Block.class, int.class),
                            constantType(context, callSiteBinder, sortType),
                            leftBlock,
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Related Classes of com.facebook.presto.spi.block.SortOrder

  • com.facebook.presto.operator.RowComparator
  • com.facebook.presto.operator.SimplePagesIndexComparator
  • com.facebook.presto.operator.TopNOperator$RowComparator
  • com.facebook.presto.operator.TopNOperator$TopNBuilder
  • com.facebook.presto.operator.TopNRowNumberOperator
  • com.facebook.presto.sql.gen.OrderingCompiler
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