Package com.facebook.presto.operator.index.UnloadedIndexKeyRecordSet

Examples of com.facebook.presto.operator.index.UnloadedIndexKeyRecordSet.UnloadedIndexKeyRecordCursor

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            // Create lookup source with new data
            LookupSource lookupSource = pagesIndex.createLookupSource(indexChannels);

            // Build a page containing the keys that produced no output rows, so in future requests can skip these keys
            PageBuilder missingKeysPageBuilder = new PageBuilder(missingKeysIndex.getTypes());
            UnloadedIndexKeyRecordCursor unloadedKeyRecordCursor = unloadedKeysRecordSet.cursor();
            while (unloadedKeyRecordCursor.advanceNextPosition()) {
                Block[] blocks = unloadedKeyRecordCursor.getBlocks();
                int position = unloadedKeyRecordCursor.getPosition();
                if (lookupSource.getJoinPosition(position, blocks) < 0) {
                    for (int i = 0; i < blocks.length; i++) {
                        blocks[i].appendTo(position, missingKeysPageBuilder.getBlockBuilder(i));
                    }
                }
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            // Create lookup source with new data
            LookupSource lookupSource = pagesIndex.createLookupSource(indexChannels);

            // Build a page containing the keys that produced no output rows, so in future requests can skip these keys
            PageBuilder missingKeysPageBuilder = new PageBuilder(missingKeysIndex.getTypes());
            UnloadedIndexKeyRecordCursor unloadedKeyRecordCursor = unloadedKeysRecordSet.cursor();
            while (unloadedKeyRecordCursor.advanceNextPosition()) {
                BlockCursor[] cursors = unloadedKeyRecordCursor.asBlockCursors();
                if (lookupSource.getJoinPosition(cursors) < 0) {
                    for (int i = 0; i < cursors.length; i++) {
                        cursors[i].appendTo(missingKeysPageBuilder.getBlockBuilder(i));
                    }
                }
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            // Create lookup source with new data
            LookupSource lookupSource = pagesIndex.createLookupSource(indexChannels);

            // Build a page containing the keys that produced no output rows, so in future requests can skip these keys
            PageBuilder missingKeysPageBuilder = new PageBuilder(missingKeysIndex.getTypes());
            UnloadedIndexKeyRecordCursor unloadedKeyRecordCursor = unloadedKeysRecordSet.cursor();
            while (unloadedKeyRecordCursor.advanceNextPosition()) {
                Block[] blocks = unloadedKeyRecordCursor.getBlocks();
                int position = unloadedKeyRecordCursor.getPosition();
                if (lookupSource.getJoinPosition(position, blocks) < 0) {
                    for (int i = 0; i < blocks.length; i++) {
                        Block block = blocks[i];
                        Type type = unloadedKeyRecordCursor.getType(i);
                        type.appendTo(block, position, missingKeysPageBuilder.getBlockBuilder(i));
                    }
                }
            }
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        LookupSource lookupSource = outputPagesIndex.createLookupSource(indexChannels);

        // Build a page containing the keys that produced no output rows, so in future requests can skip these keys
        PageBuilder missingKeysPageBuilder = new PageBuilder(missingKeysIndex.getTypes());
        UnloadedIndexKeyRecordCursor unloadedKeyRecordCursor = unloadedKeysRecordSet.cursor();
        while (unloadedKeyRecordCursor.advanceNextPosition()) {
            Block[] blocks = unloadedKeyRecordCursor.getBlocks();
            int position = unloadedKeyRecordCursor.getPosition();
            if (lookupSource.getJoinPosition(position, blocks) < 0) {
                for (int i = 0; i < blocks.length; i++) {
                    Block block = blocks[i];
                    Type type = unloadedKeyRecordCursor.getType(i);
                    type.appendTo(block, position, missingKeysPageBuilder.getBlockBuilder(i));
                }
            }
        }
        Page missingKeysPage = missingKeysPageBuilder.build();
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        LookupSource lookupSource = outputPagesIndex.createLookupSource(indexChannels);

        // Build a page containing the keys that produced no output rows, so in future requests can skip these keys
        PageBuilder missingKeysPageBuilder = new PageBuilder(missingKeysIndex.getTypes());
        UnloadedIndexKeyRecordCursor unloadedKeyRecordCursor = unloadedKeysRecordSet.cursor();
        while (unloadedKeyRecordCursor.advanceNextPosition()) {
            Block[] blocks = unloadedKeyRecordCursor.getBlocks();
            int position = unloadedKeyRecordCursor.getPosition();
            if (lookupSource.getJoinPosition(position, blocks) < 0) {
                for (int i = 0; i < blocks.length; i++) {
                    Block block = blocks[i];
                    Type type = unloadedKeyRecordCursor.getType(i);
                    type.appendTo(block, position, missingKeysPageBuilder.getBlockBuilder(i));
                }
            }
        }
        Page missingKeysPage = missingKeysPageBuilder.build();
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Related Classes of com.facebook.presto.operator.index.UnloadedIndexKeyRecordSet.UnloadedIndexKeyRecordCursor

  • com.facebook.presto.operator.index.IndexLoader$IndexSnapshotBuilder
  • com.facebook.presto.operator.index.IndexSnapshotBuilder
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