Examples of com.facebook.presto.spi.ConnectorPartitionResult

com.facebook.presto.spi.ConnectorPartitionResult
Result of fetching Partitions in the ConnectorSplitManager interface. Results are comprised of two parts: 1) The actual partitions 2) The TupleDomain that represents the values that the connector was not able to pre-evaluate when generating the partitions and will need to be double-checked by the final execution plan.


        List<ConnectorPartition> partitions = ImmutableList.copyOf(transform(tablePartitions, partitionMapper(allPartitionKeys, columnHandles)));


        log.debug("Partition generation, raptor table %s (%d partitions): %dms", tableHandle, partitions.size(), partitionTimer.elapsed(TimeUnit.MILLISECONDS));


        return new ConnectorPartitionResult(partitions, tupleDomain);
    }

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                                ImmutableList.copyOf(Lists.transform(part.isr(), brokerToHostAddress()))));
                    }
                }
            }


            return new ConnectorPartitionResult(builder.build(), tupleDomain);
        }
        catch (Exception e) {
            throw new TableNotFoundException(kafkaTableHandle.toSchemaTableName(), e);
        }
    }

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    {
        ConnectorTableHandle table = getTableHandle(tableS3);
        List<ConnectorColumnHandle> columnHandles = ImmutableList.copyOf(client.getColumnHandles(table).values());
        Map<String, Integer> columnIndex = indexColumns(columnHandles);


        ConnectorPartitionResult partitionResult = client.getPartitions(table, TupleDomain.<ConnectorColumnHandle>all());
        assertEquals(partitionResult.getPartitions().size(), 1);
        ConnectorSplitSource splitSource = client.getPartitionSplits(table, partitionResult.getPartitions());


        long sum = 0;
        for (ConnectorSplit split : getAllSplits(splitSource)) {
            try (RecordCursor cursor = client.getRecordSet(split, columnHandles).cursor()) {
                while (cursor.advanceNextPosition()) {

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        // load the new table
        ConnectorTableHandle tableHandle = getTableHandle(tableName);
        List<ConnectorColumnHandle> columnHandles = ImmutableList.copyOf(client.getColumnHandles(tableHandle).values());


        // verify the data
        ConnectorPartitionResult partitionResult = client.getPartitions(tableHandle, TupleDomain.<ConnectorColumnHandle>all());
        assertEquals(partitionResult.getPartitions().size(), 1);
        ConnectorSplitSource splitSource = client.getPartitionSplits(tableHandle, partitionResult.getPartitions());
        ConnectorSplit split = getOnlyElement(getAllSplits(splitSource));


        try (RecordCursor cursor = client.getRecordSet(split, columnHandles).cursor()) {
            assertTrue(cursor.advanceNextPosition());
            assertEquals(cursor.getLong(0), 1);

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    @Test
    public void testGetPartitions()
            throws Exception
    {
        ConnectorTableHandle tableHandle = getTableHandle(tablePartitionFormat);
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.<ConnectorColumnHandle>all());
        assertExpectedPartitions(partitionResult.getPartitions(), partitions);
    }

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    @Test
    public void testGetPartitionsWithBindings()
            throws Exception
    {
        ConnectorTableHandle tableHandle = getTableHandle(tablePartitionFormat);
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.withColumnDomains(ImmutableMap.of(intColumn, Domain.singleValue(5L))));
        assertExpectedPartitions(partitionResult.getPartitions(), partitions);
    }

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    @Test
    public void testGetPartitionNames()
            throws Exception
    {
        ConnectorTableHandle tableHandle = getTableHandle(tablePartitionFormat);
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.<ConnectorColumnHandle>all());
        assertExpectedPartitions(partitionResult.getPartitions(), partitions);
    }

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    @Test
    public void testGetPartitionNamesUnpartitioned()
            throws Exception
    {
        ConnectorTableHandle tableHandle = getTableHandle(tableUnpartitioned);
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.<ConnectorColumnHandle>all());
        assertEquals(partitionResult.getPartitions().size(), 1);
        assertEquals(partitionResult.getPartitions(), unpartitionedPartitions);
    }

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    @Test
    public void testGetPartitionSplitsBatch()
            throws Exception
    {
        ConnectorTableHandle tableHandle = getTableHandle(tablePartitionFormat);
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.<ConnectorColumnHandle>all());
        ConnectorSplitSource splitSource = splitManager.getPartitionSplits(tableHandle, partitionResult.getPartitions());


        assertEquals(getSplitCount(splitSource), partitions.size());
    }

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    @Test
    public void testGetPartitionSplitsBatchUnpartitioned()
            throws Exception
    {
        ConnectorTableHandle tableHandle = getTableHandle(tableUnpartitioned);
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.<ConnectorColumnHandle>all());
        ConnectorSplitSource splitSource = splitManager.getPartitionSplits(tableHandle, partitionResult.getPartitions());


        assertEquals(getSplitCount(splitSource), 1);
    }

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