Examples with HiveColumnStatistics com.facebook.presto.hive.metastore.HiveColumnStatistics used on opensource projects

Example 1 with HiveColumnStatistics

use of com.facebook.presto.hive.metastore.HiveColumnStatistics in project presto by prestodb.

the class AlluxioHiveMetastore method getPartitionStatistics.

@Override
public Map<String, PartitionStatistics> getPartitionStatistics(MetastoreContext metastoreContext, String databaseName, String tableName, Set<String> partitionNames) {
    Table table = getTable(metastoreContext, databaseName, tableName).orElseThrow(() -> new TableNotFoundException(new SchemaTableName(databaseName, tableName)));
    Map<String, HiveBasicStatistics> partitionBasicStatistics = getPartitionsByNames(metastoreContext, databaseName, tableName, ImmutableList.copyOf(partitionNames)).entrySet().stream().filter(entry -> entry.getValue().isPresent()).collect(toImmutableMap(entry -> MetastoreUtil.makePartName(table.getPartitionColumns(), entry.getValue().get().getValues()), entry -> getHiveBasicStatistics(entry.getValue().get().getParameters())));
    Map<String, OptionalLong> partitionRowCounts = partitionBasicStatistics.entrySet().stream().collect(toImmutableMap(Map.Entry::getKey, entry -> entry.getValue().getRowCount()));
    List<String> dataColumns = table.getDataColumns().stream().map(Column::getName).collect(toImmutableList());
    Map<String, List<ColumnStatisticsInfo>> columnStatisticss;
    try {
        columnStatisticss = client.getPartitionColumnStatistics(table.getDatabaseName(), table.getTableName(), partitionBasicStatistics.keySet().stream().collect(toImmutableList()), dataColumns);
    } catch (AlluxioStatusException e) {
        throw new PrestoException(HIVE_METASTORE_ERROR, e);
    }
    Map<String, Map<String, HiveColumnStatistics>> partitionColumnStatistics = columnStatisticss.entrySet().stream().filter(entry -> !entry.getValue().isEmpty()).collect(toImmutableMap(Map.Entry::getKey, entry -> groupStatisticsByColumn(metastoreContext, entry.getValue(), partitionRowCounts.getOrDefault(entry.getKey(), OptionalLong.empty()))));
    ImmutableMap.Builder<String, PartitionStatistics> result = ImmutableMap.builder();
    for (String partitionName : partitionBasicStatistics.keySet()) {
        HiveBasicStatistics basicStatistics = partitionBasicStatistics.get(partitionName);
        Map<String, HiveColumnStatistics> columnStatistics = partitionColumnStatistics.getOrDefault(partitionName, ImmutableMap.of());
        result.put(partitionName, new PartitionStatistics(basicStatistics, columnStatistics));
    }
    return result.build();
}

Example 2 with HiveColumnStatistics

use of com.facebook.presto.hive.metastore.HiveColumnStatistics in project presto by prestodb.

the class ThriftHiveMetastore method getTableStatistics.

@Override
public PartitionStatistics getTableStatistics(MetastoreContext metastoreContext, String databaseName, String tableName) {
    Table table = getTable(metastoreContext, databaseName, tableName).orElseThrow(() -> new TableNotFoundException(new SchemaTableName(databaseName, tableName)));
    List<String> dataColumns = table.getSd().getCols().stream().map(FieldSchema::getName).collect(toImmutableList());
    HiveBasicStatistics basicStatistics = getHiveBasicStatistics(table.getParameters());
    Map<String, HiveColumnStatistics> columnStatistics = getTableColumnStatistics(metastoreContext, databaseName, tableName, dataColumns, basicStatistics.getRowCount());
    return new PartitionStatistics(basicStatistics, columnStatistics);
}

Example 3 with HiveColumnStatistics

use of com.facebook.presto.hive.metastore.HiveColumnStatistics in project presto by prestodb.

the class ThriftHiveMetastore method storePartitionColumnStatistics.

private void storePartitionColumnStatistics(MetastoreContext metastoreContext, String databaseName, String tableName, String partitionName, PartitionWithStatistics partitionWithStatistics) {
    PartitionStatistics statistics = partitionWithStatistics.getStatistics();
    Map<String, HiveColumnStatistics> columnStatistics = statistics.getColumnStatistics();
    if (columnStatistics.isEmpty()) {
        return;
    }
    Map<String, HiveType> columnTypes = partitionWithStatistics.getPartition().getColumns().stream().collect(toImmutableMap(Column::getName, Column::getType));
    setPartitionColumnStatistics(metastoreContext, databaseName, tableName, partitionName, columnTypes, columnStatistics, statistics.getBasicStatistics().getRowCount());
}

Example 4 with HiveColumnStatistics

use of com.facebook.presto.hive.metastore.HiveColumnStatistics in project presto by prestodb.

the class TestThriftHiveMetastoreUtil method testEmptyDecimalStatsToColumnStatistics.

@Test
public void testEmptyDecimalStatsToColumnStatistics() {
    DecimalColumnStatsData emptyDecimalColumnStatsData = new DecimalColumnStatsData();
    ColumnStatisticsObj columnStatisticsObj = new ColumnStatisticsObj("my_col", DECIMAL_TYPE_NAME, decimalStats(emptyDecimalColumnStatsData));
    HiveColumnStatistics actual = fromMetastoreApiColumnStatistics(columnStatisticsObj, OptionalLong.empty());
    assertEquals(actual.getIntegerStatistics(), Optional.empty());
    assertEquals(actual.getDoubleStatistics(), Optional.empty());
    assertEquals(actual.getDecimalStatistics(), Optional.of(new DecimalStatistics(Optional.empty(), Optional.empty())));
    assertEquals(actual.getDateStatistics(), Optional.empty());
    assertEquals(actual.getBooleanStatistics(), Optional.empty());
    assertEquals(actual.getMaxValueSizeInBytes(), OptionalLong.empty());
    assertEquals(actual.getTotalSizeInBytes(), OptionalLong.empty());
    assertEquals(actual.getNullsCount(), OptionalLong.empty());
    assertEquals(actual.getDistinctValuesCount(), OptionalLong.empty());
}

Example 5 with HiveColumnStatistics

use of com.facebook.presto.hive.metastore.HiveColumnStatistics in project presto by prestodb.

the class TestThriftHiveMetastoreUtil method testEmptyBinaryStatsToColumnStatistics.

@Test
public void testEmptyBinaryStatsToColumnStatistics() {
    BinaryColumnStatsData emptyBinaryColumnStatsData = new BinaryColumnStatsData();
    ColumnStatisticsObj columnStatisticsObj = new ColumnStatisticsObj("my_col", BINARY_TYPE_NAME, binaryStats(emptyBinaryColumnStatsData));
    HiveColumnStatistics actual = fromMetastoreApiColumnStatistics(columnStatisticsObj, OptionalLong.empty());
    assertEquals(actual.getIntegerStatistics(), Optional.empty());
    assertEquals(actual.getDoubleStatistics(), Optional.empty());
    assertEquals(actual.getDecimalStatistics(), Optional.empty());
    assertEquals(actual.getDateStatistics(), Optional.empty());
    assertEquals(actual.getBooleanStatistics(), Optional.empty());
    assertEquals(actual.getMaxValueSizeInBytes(), OptionalLong.empty());
    assertEquals(actual.getTotalSizeInBytes(), OptionalLong.empty());
    assertEquals(actual.getNullsCount(), OptionalLong.empty());
    assertEquals(actual.getDistinctValuesCount(), OptionalLong.empty());
}