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.

    @Test
    public void testGetPartitionNames()
            throws Exception
    {
        ConnectorTableHandle tableHandle = getTableHandle(table);
        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(table);
        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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        ConnectorColumnHandle dsColumn = metadata.getColumnHandle(tableHandle, "ds");
        assertNotNull(dsColumn);


        Domain domain = Domain.singleValue(utf8Slice("2012-12-30"));
        TupleDomain<ConnectorColumnHandle> tupleDomain = TupleDomain.withColumnDomains(ImmutableMap.of(dsColumn, domain));
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, tupleDomain);
        for (ConnectorPartition partition : partitionResult.getPartitions()) {
            if (domain.equals(partition.getTupleDomain().getDomains().get(dsColumn))) {
                try {
                    getSplitCount(splitManager.getPartitionSplits(tableHandle, ImmutableList.of(partition)));
                    fail("Expected PartitionOfflineException");
                }

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                .put(columnHandles.get(columnIndex.get("t_int")), testInt)
                .put(columnHandles.get(columnIndex.get("t_string")), utf8Slice(testString))
                .put(columnHandles.get(columnIndex.get("t_smallint")), testSmallint)
                .build();


        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.withFixedValues(bindings));
        List<ConnectorSplit> splits = getAllSplits(splitManager.getPartitionSplits(tableHandle, partitionResult.getPartitions()));
        assertEquals(splits.size(), 1);


        boolean rowFound = false;
        try (RecordCursor cursor = recordSetProvider.getRecordSet(splits.get(0), columnHandles).cursor()) {
            while (cursor.advanceNextPosition()) {

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                .put(columnHandles.get(columnIndex.get("t_string")), utf8Slice(testString))
                .put(columnHandles.get(columnIndex.get("t_bigint")), testBigint)
                .put(columnHandles.get(columnIndex.get("t_boolean")), testBoolean)
                .build();


        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.withFixedValues(bindings));
        List<ConnectorSplit> splits = getAllSplits(splitManager.getPartitionSplits(tableHandle, partitionResult.getPartitions()));
        assertEquals(splits.size(), 1);


        boolean rowFound = false;
        try (RecordCursor cursor = recordSetProvider.getRecordSet(splits.get(0), columnHandles).cursor()) {
            while (cursor.advanceNextPosition()) {

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                .put(columnHandles.get(columnIndex.get("t_float")), 406.1000061035156)
                .put(columnHandles.get(columnIndex.get("t_double")), 407.2)
                .build();


        // floats and doubles are not supported, so we should see all splits
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.withFixedValues(bindings));
        List<ConnectorSplit> splits = getAllSplits(splitManager.getPartitionSplits(tableHandle, partitionResult.getPartitions()));
        assertEquals(splits.size(), 32);


        int count = 0;
        for (ConnectorSplit split : splits) {
            try (RecordCursor cursor = recordSetProvider.getRecordSet(split, columnHandles).cursor()) {

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    private void assertTableIsBucketed(ConnectorTableHandle tableHandle)
            throws Exception
    {
        // the bucketed test tables should have exactly 32 splits
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.<ConnectorColumnHandle>all());
        List<ConnectorSplit> splits = getAllSplits(splitManager.getPartitionSplits(tableHandle, partitionResult.getPartitions()));
        assertEquals(splits.size(), 32);


        // verify all paths are unique
        Set<String> paths = new HashSet<>();
        for (ConnectorSplit split : splits) {

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        ConnectorTableHandle tableHandle = getTableHandle(table);
        ConnectorTableMetadata tableMetadata = metadata.getTableMetadata(tableHandle);
        List<ConnectorColumnHandle> columnHandles = ImmutableList.copyOf(metadata.getColumnHandles(tableHandle).values());
        Map<String, Integer> columnIndex = indexColumns(columnHandles);


        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, TupleDomain.<ConnectorColumnHandle>all());
        List<ConnectorSplit> splits = getAllSplits(splitManager.getPartitionSplits(tableHandle, partitionResult.getPartitions()));
        assertEquals(splits.size(), this.partitions.size());
        for (ConnectorSplit split : splits) {
            HiveSplit hiveSplit = (HiveSplit) split;


            List<HivePartitionKey> partitionKeys = hiveSplit.getPartitionKeys();

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