Package com.facebook.presto.operator

Examples of com.facebook.presto.operator.PageBuilder.build()

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                    Object result = ExpressionInterpreter.expressionInterpreter(row.get(i), metadata, context.getSession(), expressionTypes).evaluate(0);
                    BlockUtils.appendObject(outputTypes.get(i), pageBuilder.getBlockBuilder(i), result);
                }
            }

            OperatorFactory operatorFactory = new ValuesOperatorFactory(context.getNextOperatorId(), outputTypes, ImmutableList.of(pageBuilder.build()));
            return new PhysicalOperation(operatorFactory, outputMappings);
        }

        @Override
        public PhysicalOperation visitIndexSource(IndexSourceNode node, LocalExecutionPlanContext context)
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                    pageBuilder.getBlockBuilder(channel).append(cursors[channel]);
                }

                // if page is full, flush
                if (pageBuilder.isFull()) {
                    partitionedPages.add(pageBuilder.build());
                    pageBuilder.reset();
                }
            }
        }
        if (!pageBuilder.isEmpty()) {
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                    pageBuilder.reset();
                }
            }
        }
        if (!pageBuilder.isEmpty()) {
            partitionedPages.add(pageBuilder.build());
        }

        return partitionedPages.build();
    }
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                    Object result = ExpressionInterpreter.expressionInterpreter(row.get(i), metadata, context.getSession(), expressionTypes).evaluate(new BlockCursor[0]);
                    BlockUtils.appendObject(pageBuilder.getBlockBuilder(i), result);
                }
            }

            OperatorFactory operatorFactory = new ValuesOperatorFactory(context.getNextOperatorId(), ImmutableList.of(pageBuilder.build()));
            return new PhysicalOperation(operatorFactory, outputMappings);
        }

        @Override
        public PhysicalOperation visitIndexSource(IndexSourceNode node, LocalExecutionPlanContext context)
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            }
        }

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

        assertApproximateAggregation(function, 1, 0.99, (double) sum, builder.build());
    }

    @Test
    public void testErrorBound()
            throws Exception
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                }
            }

            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));
    }
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                    Object result = ExpressionInterpreter.expressionInterpreter(row.get(i), metadata, context.getSession(), expressionTypes).evaluate(new BlockCursor[0]);
                    BlockUtils.appendObject(pageBuilder.getBlockBuilder(i), result);
                }
            }

            OperatorFactory operatorFactory = new ValuesOperatorFactory(context.getNextOperatorId(), ImmutableList.of(pageBuilder.build()));
            return new PhysicalOperation(operatorFactory, outputMappings);
        }

        @Override
        public PhysicalOperation visitIndexSource(IndexSourceNode node, LocalExecutionPlanContext context)
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                // write position to output block
                hashStrategy.appendTo(leftBlockIndex, leftBlockPosition, pageBuilder, 0);
            }

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

    @Test
    public void testMultiChannel()
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                // 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),
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            }
        }

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

        assertApproximateAggregation(function, 1, 0.99, (double) sum, builder.build());
    }

    @Test
    public void testErrorBound()
            throws Exception
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