Examples of PageBuilder

Examples of com.facebook.presto.operator.PageBuilder

120
121
122
123
124
125
126
127
128
                pageBuilder.getBlockBuilder(i).append(tuple, i);
            }

            if (pageBuilder.isFull()) {
                flushPage();
                pageBuilder = new PageBuilder(tupleInfos);
            }
            return this;
        }
View Full Code Here

Examples of com.facebook.presto.operator.PageBuilder

54
55
56
57
58
59
60
            sampleWeightField = columnTypes.size() - 1;
        }
        else {
            sampleWeightField = -1;
        }
        pageBuilder = new PageBuilder(toTypes(columnTypes));
    }
View Full Code Here

Examples of com.facebook.presto.operator.PageBuilder

34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
    @Test
    public void testSum()
            throws Exception
    {
        int sum = 1_000;
        PageBuilder builder = new PageBuilder(ImmutableList.of(BIGINT, BIGINT));
        Random rand = new Random(0);
        for (int i = 0; i < sum; i++) {
            if (rand.nextDouble() < 0.5) {
                builder.getBlockBuilder(0).appendLong(1);
                builder.getBlockBuilder(1).appendLong(2);
            }
        }

        AggregationFunction function = new DeterministicBootstrappedAggregation(createTestingBlockEncodingManager(), LONG_SUM);

        assertApproximateAggregation(function, 1, 0.99, (double) sum, builder.build());
    }
View Full Code Here

Examples of com.facebook.presto.operator.PageBuilder

59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
        int successes = 0;
        Random rand = new Random(0);
        for (int i = 0; i < trials; i++) {
            int sum = 1_000;
            PageBuilder builder = new PageBuilder(ImmutableList.of(BIGINT, BIGINT));
            for (int j = 0; j < sum; j++) {
                if (rand.nextDouble() < 0.5) {
                    builder.getBlockBuilder(0).appendLong(1);
                    builder.getBlockBuilder(1).appendLong(2);
                }
            }

            AggregationFunction function = new DeterministicBootstrappedAggregation(createTestingBlockEncodingManager(), LONG_SUM);

            successes += approximateAggregationWithinErrorBound(function, 1, 0.5, (double) sum, builder.build()) ? 1 : 0;
        }

        // Since we used a confidence of 0.5, successes should have a binomial distribution B(n=20, p=0.5)
        assertTrue(binomial.inverseCumulativeProbability(0.01) < successes && successes < binomial.inverseCumulativeProbability(0.99));
    }
View Full Code Here

Examples of com.facebook.presto.spi.PageBuilder

107
108
109
110
111
112
113
114
115
116
        new Runner(options).run();
    }

    public static Page execute(Page inputPage, PageProcessor processor)
    {
        PageBuilder pageBuilder = new PageBuilder(ImmutableList.of(DOUBLE));
        int count = processor.process(null, inputPage, 0, inputPage.getPositionCount(), pageBuilder);
        checkState(count == inputPage.getPositionCount());
        return pageBuilder.build();
    }
View Full Code Here

Examples of com.facebook.presto.spi.PageBuilder

115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
        return pageBuilder.build();
    }

    public static Page createInputPage()
    {
        PageBuilder pageBuilder = new PageBuilder(ImmutableList.of(DOUBLE, DOUBLE, VARCHAR, BIGINT));
        LineItemGenerator lineItemGenerator = new LineItemGenerator(1, 1, 1);
        Iterator<LineItem> iterator = lineItemGenerator.iterator();
        for (int i = 0; i < 10_000; i++) {
            LineItem lineItem = iterator.next();
            DOUBLE.writeDouble(pageBuilder.getBlockBuilder(EXTENDED_PRICE), lineItem.getExtendedPrice());
            DOUBLE.writeDouble(pageBuilder.getBlockBuilder(DISCOUNT), lineItem.getDiscount());
            VARCHAR.writeSlice(pageBuilder.getBlockBuilder(SHIP_DATE), Slices.utf8Slice(lineItem.getShipDate()));
            BIGINT.writeLong(pageBuilder.getBlockBuilder(QUANTITY), lineItem.getQuantity());
        }
        return pageBuilder.build();
    }
View Full Code Here

Examples of com.facebook.presto.spi.PageBuilder

98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
        // verify channel count
        assertEquals(joinProbe.getChannelCount(), 1);

        Block probeBlock = page.getBlock(0);
        PageBuilder pageBuilder = new PageBuilder(types);
        for (int position = 0; position < page.getPositionCount(); position++) {
            assertTrue(joinProbe.advanceNextPosition());

            joinProbe.appendTo(pageBuilder);

            assertEquals(joinProbe.getCurrentJoinPosition(), lookupSource.getJoinPosition(position, probeBlock));
        }
        assertFalse(joinProbe.advanceNextPosition());
        assertPageEquals(types, pageBuilder.build(), page);
    }
View Full Code Here

Examples of com.facebook.presto.spi.PageBuilder

60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
        // verify hashStrategy is consistent with equals and hash code from block
        for (int leftBlockIndex = 0; leftBlockIndex < channel.size(); leftBlockIndex++) {
            Block leftBlock = channel.get(leftBlockIndex);

            PageBuilder pageBuilder = new PageBuilder(ImmutableList.of(VARCHAR));

            for (int leftBlockPosition = 0; leftBlockPosition < leftBlock.getPositionCount(); leftBlockPosition++) {
                // hash code of position must match block hash
                assertEquals(hashStrategy.hashPosition(leftBlockIndex, leftBlockPosition), hashPosition(VARCHAR, leftBlock, leftBlockPosition));

                // position must be equal to itself
                assertTrue(hashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, leftBlockIndex, leftBlockPosition));

                // check equality of every position against every other position in the block
                for (int rightBlockIndex = 0; rightBlockIndex < channel.size(); rightBlockIndex++) {
                    Block rightBlock = channel.get(rightBlockIndex);
                    for (int rightBlockPosition = 0; rightBlockPosition < rightBlock.getPositionCount(); rightBlockPosition++) {
                        assertEquals(
                                hashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, rightBlockIndex, rightBlockPosition),
                                positionEqualsPosition(VARCHAR, leftBlock, leftBlockPosition, rightBlock, rightBlockPosition));
                    }
                }

                // check equality of every position against every other position in the block cursor
                for (Block rightBlock : channel) {
                    for (int position = 0; position < rightBlock.getPositionCount(); position++) {
                        assertEquals(
                                hashStrategy.positionEqualsRow(leftBlockIndex, leftBlockPosition, position, rightBlock),
                                positionEqualsPosition(VARCHAR, leftBlock, leftBlockPosition, rightBlock, position));
                    }
                }

                // write position to output block
                hashStrategy.appendTo(leftBlockIndex, leftBlockPosition, pageBuilder, 0);
            }

            // verify output block matches
            assertBlockEquals(VARCHAR, pageBuilder.build().getBlock(0), leftBlock);
        }
    }
View Full Code Here

Examples of com.facebook.presto.spi.PageBuilder

137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
        PagesHashStrategy expectedHashStrategy = new SimplePagesHashStrategy(types, channels, Ints.asList(1, 2, 3, 4));

        // verify hashStrategy is consistent with equals and hash code from block
        for (int leftBlockIndex = 0; leftBlockIndex < varcharChannel.size(); leftBlockIndex++) {
            PageBuilder pageBuilder = new PageBuilder(types);

            int leftPositionCount = varcharChannel.get(leftBlockIndex).getPositionCount();
            for (int leftBlockPosition = 0; leftBlockPosition < leftPositionCount; leftBlockPosition++) {
                // hash code of position must match block hash
                assertEquals(
                        hashStrategy.hashPosition(leftBlockIndex, leftBlockPosition),
                        expectedHashStrategy.hashPosition(leftBlockIndex, leftBlockPosition));

                // position must be equal to itself
                assertTrue(hashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, leftBlockIndex, leftBlockPosition));

                // check equality of every position against every other position in the block
                for (int rightBlockIndex = 0; rightBlockIndex < varcharChannel.size(); rightBlockIndex++) {
                    Block rightBlock = varcharChannel.get(rightBlockIndex);
                    for (int rightBlockPosition = 0; rightBlockPosition < rightBlock.getPositionCount(); rightBlockPosition++) {
                        assertEquals(
                                hashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, rightBlockIndex, rightBlockPosition),
                                expectedHashStrategy.positionEqualsPosition(leftBlockIndex, leftBlockPosition, rightBlockIndex, rightBlockPosition));
                    }
                }

                // check equality of every position against every other position in the block cursor
                for (int rightBlockIndex = 0; rightBlockIndex < varcharChannel.size(); rightBlockIndex++) {
                    Block[] rightBlocks = new Block[4];
                    rightBlocks[0] = varcharChannel.get(rightBlockIndex);
                    rightBlocks[1] = longChannel.get(rightBlockIndex);
                    rightBlocks[2] = doubleChannel.get(rightBlockIndex);
                    rightBlocks[3] = booleanChannel.get(rightBlockIndex);

                    int rightPositionCount = varcharChannel.get(rightBlockIndex).getPositionCount();
                    for (int rightPosition = 0; rightPosition < rightPositionCount; rightPosition++) {
                        assertEquals(
                                hashStrategy.positionEqualsRow(leftBlockIndex, leftBlockPosition, rightPosition, rightBlocks),
                                expectedHashStrategy.positionEqualsRow(leftBlockIndex, leftBlockPosition, rightPosition, rightBlocks));
                    }
                }

                // write position to output block
                hashStrategy.appendTo(leftBlockIndex, leftBlockPosition, pageBuilder, 0);
            }

            // verify output block matches
            Page page = pageBuilder.build();
            assertPageEquals(types, page, new Page(
                    extraChannel.get(leftBlockIndex),
                    varcharChannel.get(leftBlockIndex),
                    longChannel.get(leftBlockIndex),
                    doubleChannel.get(leftBlockIndex),
View Full Code Here

Examples of com.facebook.presto.spi.PageBuilder

58
59
60
61
62
63
64
            sampleWeightField = columnTypes.size() - 1;
        }
        else {
            sampleWeightField = -1;
        }
        pageBuilder = new PageBuilder(toTypes(columnTypes));
    }
View Full Code Here
TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.