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Example 1 with ColumnStatisticType

use of io.trino.spi.statistics.ColumnStatisticType in project trino by trinodb.

the class StatisticsAggregationPlanner method createStatisticsAggregation.

public TableStatisticAggregation createStatisticsAggregation(TableStatisticsMetadata statisticsMetadata, Map<String, Symbol> columnToSymbolMap) {
    StatisticAggregationsDescriptor.Builder<Symbol> descriptor = StatisticAggregationsDescriptor.builder();
    List<String> groupingColumns = statisticsMetadata.getGroupingColumns();
    List<Symbol> groupingSymbols = groupingColumns.stream().map(columnToSymbolMap::get).collect(toImmutableList());
    for (int i = 0; i < groupingSymbols.size(); i++) {
        descriptor.addGrouping(groupingColumns.get(i), groupingSymbols.get(i));
    }
    ImmutableMap.Builder<Symbol, AggregationNode.Aggregation> aggregations = ImmutableMap.builder();
    for (TableStatisticType type : statisticsMetadata.getTableStatistics()) {
        if (type != ROW_COUNT) {
            throw new TrinoException(NOT_SUPPORTED, "Table-wide statistic type not supported: " + type);
        }
        AggregationNode.Aggregation aggregation = new AggregationNode.Aggregation(metadata.resolveFunction(session, QualifiedName.of("count"), ImmutableList.of()), ImmutableList.of(), false, Optional.empty(), Optional.empty(), Optional.empty());
        Symbol symbol = symbolAllocator.newSymbol("rowCount", BIGINT);
        aggregations.put(symbol, aggregation);
        descriptor.addTableStatistic(ROW_COUNT, symbol);
    }
    for (ColumnStatisticMetadata columnStatisticMetadata : statisticsMetadata.getColumnStatistics()) {
        String columnName = columnStatisticMetadata.getColumnName();
        ColumnStatisticType statisticType = columnStatisticMetadata.getStatisticType();
        Symbol inputSymbol = columnToSymbolMap.get(columnName);
        verifyNotNull(inputSymbol, "inputSymbol is null");
        Type inputType = symbolAllocator.getTypes().get(inputSymbol);
        verifyNotNull(inputType, "inputType is null for symbol: %s", inputSymbol);
        ColumnStatisticsAggregation aggregation = createColumnAggregation(statisticType, inputSymbol, inputType);
        Symbol symbol = symbolAllocator.newSymbol(statisticType + ":" + columnName, aggregation.getOutputType());
        aggregations.put(symbol, aggregation.getAggregation());
        descriptor.addColumnStatistic(columnStatisticMetadata, symbol);
    }
    StatisticAggregations aggregation = new StatisticAggregations(aggregations.buildOrThrow(), groupingSymbols);
    return new TableStatisticAggregation(aggregation, descriptor.build());
}
Also used : ColumnStatisticMetadata(io.trino.spi.statistics.ColumnStatisticMetadata) AggregationNode(io.trino.sql.planner.plan.AggregationNode) ImmutableMap(com.google.common.collect.ImmutableMap) StatisticAggregations(io.trino.sql.planner.plan.StatisticAggregations) Type(io.trino.spi.type.Type) ColumnStatisticType(io.trino.spi.statistics.ColumnStatisticType) TableStatisticType(io.trino.spi.statistics.TableStatisticType) ColumnStatisticType(io.trino.spi.statistics.ColumnStatisticType) TrinoException(io.trino.spi.TrinoException) StatisticAggregationsDescriptor(io.trino.sql.planner.plan.StatisticAggregationsDescriptor) TableStatisticType(io.trino.spi.statistics.TableStatisticType)

Example 2 with ColumnStatisticType

use of io.trino.spi.statistics.ColumnStatisticType in project trino by trinodb.

the class Statistics method createColumnStatisticsForEmptyPartition.

private static HiveColumnStatistics createColumnStatisticsForEmptyPartition(Type columnType, Set<ColumnStatisticType> columnStatisticTypes) {
    requireNonNull(columnType, "columnType is null");
    HiveColumnStatistics.Builder result = HiveColumnStatistics.builder();
    for (ColumnStatisticType columnStatisticType : columnStatisticTypes) {
        setColumnStatisticsForEmptyPartition(columnType, result, columnStatisticType);
    }
    return result.build();
}
Also used : ColumnStatisticType(io.trino.spi.statistics.ColumnStatisticType) HiveColumnStatistics(io.trino.plugin.hive.metastore.HiveColumnStatistics)

Example 3 with ColumnStatisticType

use of io.trino.spi.statistics.ColumnStatisticType in project trino by trinodb.

the class TestStatisticAggregationsDescriptor method testColumnStatisticMetadataKeySerializationRoundTrip.

@Test
public void testColumnStatisticMetadataKeySerializationRoundTrip() {
    for (String column : COLUMNS) {
        for (ColumnStatisticType type : ColumnStatisticType.values()) {
            ColumnStatisticMetadata expected = new ColumnStatisticMetadata(column, type);
            assertEquals(deserialize(serialize(expected)), expected);
        }
    }
}
Also used : ColumnStatisticMetadata(io.trino.spi.statistics.ColumnStatisticMetadata) ColumnStatisticType(io.trino.spi.statistics.ColumnStatisticType) Test(org.testng.annotations.Test)

Example 4 with ColumnStatisticType

use of io.trino.spi.statistics.ColumnStatisticType in project trino by trinodb.

the class TestStatisticAggregationsDescriptor method createTestDescriptor.

private static StatisticAggregationsDescriptor<Symbol> createTestDescriptor() {
    StatisticAggregationsDescriptor.Builder<Symbol> builder = StatisticAggregationsDescriptor.builder();
    SymbolAllocator symbolAllocator = new SymbolAllocator();
    for (String column : COLUMNS) {
        for (ColumnStatisticType type : ColumnStatisticType.values()) {
            builder.addColumnStatistic(new ColumnStatisticMetadata(column, type), testSymbol(symbolAllocator));
        }
        builder.addGrouping(column, testSymbol(symbolAllocator));
    }
    builder.addTableStatistic(ROW_COUNT, testSymbol(symbolAllocator));
    return builder.build();
}
Also used : SymbolAllocator(io.trino.sql.planner.SymbolAllocator) ColumnStatisticMetadata(io.trino.spi.statistics.ColumnStatisticMetadata) Symbol(io.trino.sql.planner.Symbol) ColumnStatisticType(io.trino.spi.statistics.ColumnStatisticType)

Example 5 with ColumnStatisticType

use of io.trino.spi.statistics.ColumnStatisticType in project trino by trinodb.

the class HiveMetadata method finishStatisticsCollection.

@Override
public void finishStatisticsCollection(ConnectorSession session, ConnectorTableHandle tableHandle, Collection<ComputedStatistics> computedStatistics) {
    HiveTableHandle handle = (HiveTableHandle) tableHandle;
    SchemaTableName tableName = handle.getSchemaTableName();
    Table table = metastore.getTable(tableName.getSchemaName(), tableName.getTableName()).orElseThrow(() -> new TableNotFoundException(handle.getSchemaTableName()));
    List<Column> partitionColumns = table.getPartitionColumns();
    List<String> partitionColumnNames = partitionColumns.stream().map(Column::getName).collect(toImmutableList());
    HiveTimestampPrecision timestampPrecision = getTimestampPrecision(session);
    List<HiveColumnHandle> hiveColumnHandles = hiveColumnHandles(table, typeManager, timestampPrecision);
    Map<String, Type> columnTypes = hiveColumnHandles.stream().filter(columnHandle -> !columnHandle.isHidden()).collect(toImmutableMap(HiveColumnHandle::getName, column -> column.getHiveType().getType(typeManager, timestampPrecision)));
    Map<List<String>, ComputedStatistics> computedStatisticsMap = createComputedStatisticsToPartitionMap(computedStatistics, partitionColumnNames, columnTypes);
    if (partitionColumns.isEmpty()) {
        // commit analyze to unpartitioned table
        metastore.setTableStatistics(table, createPartitionStatistics(columnTypes, computedStatisticsMap.get(ImmutableList.<String>of())));
    } else {
        List<List<String>> partitionValuesList;
        if (handle.getAnalyzePartitionValues().isPresent()) {
            partitionValuesList = handle.getAnalyzePartitionValues().get();
        } else {
            partitionValuesList = metastore.getPartitionNames(handle.getSchemaName(), handle.getTableName()).orElseThrow(() -> new TableNotFoundException(((HiveTableHandle) tableHandle).getSchemaTableName())).stream().map(HiveUtil::toPartitionValues).collect(toImmutableList());
        }
        ImmutableMap.Builder<List<String>, PartitionStatistics> partitionStatistics = ImmutableMap.builder();
        Map<String, Set<ColumnStatisticType>> columnStatisticTypes = hiveColumnHandles.stream().filter(columnHandle -> !partitionColumnNames.contains(columnHandle.getName())).filter(column -> !column.isHidden()).collect(toImmutableMap(HiveColumnHandle::getName, column -> ImmutableSet.copyOf(metastore.getSupportedColumnStatistics(column.getType()))));
        Supplier<PartitionStatistics> emptyPartitionStatistics = Suppliers.memoize(() -> createEmptyPartitionStatistics(columnTypes, columnStatisticTypes));
        int usedComputedStatistics = 0;
        for (List<String> partitionValues : partitionValuesList) {
            ComputedStatistics collectedStatistics = computedStatisticsMap.get(partitionValues);
            if (collectedStatistics == null) {
                partitionStatistics.put(partitionValues, emptyPartitionStatistics.get());
            } else {
                usedComputedStatistics++;
                partitionStatistics.put(partitionValues, createPartitionStatistics(columnTypes, collectedStatistics));
            }
        }
        verify(usedComputedStatistics == computedStatistics.size(), "All computed statistics must be used");
        metastore.setPartitionStatistics(table, partitionStatistics.buildOrThrow());
    }
}
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Aggregations

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