use of com.facebook.presto.hive.HiveErrorCode.HIVE_EXCEEDED_PARTITION_LIMIT in project presto by prestodb.
the class HivePartitionManager method getPartitions.
public HivePartitionResult getPartitions(SemiTransactionalHiveMetastore metastore, ConnectorTableHandle tableHandle, Constraint<ColumnHandle> constraint) {
HiveTableHandle hiveTableHandle = (HiveTableHandle) tableHandle;
TupleDomain<ColumnHandle> effectivePredicate = constraint.getSummary();
SchemaTableName tableName = hiveTableHandle.getSchemaTableName();
Table table = getTable(metastore, tableName);
Optional<HiveBucketHandle> hiveBucketHandle = getHiveBucketHandle(connectorId, table);
List<HiveColumnHandle> partitionColumns = getPartitionKeyColumnHandles(connectorId, table);
List<HiveBucket> buckets = getHiveBucketNumbers(table, effectivePredicate);
TupleDomain<HiveColumnHandle> compactEffectivePredicate = toCompactTupleDomain(effectivePredicate, domainCompactionThreshold);
if (effectivePredicate.isNone()) {
return new HivePartitionResult(partitionColumns, ImmutableList.of(), TupleDomain.none(), TupleDomain.none(), hiveBucketHandle);
}
if (partitionColumns.isEmpty()) {
return new HivePartitionResult(partitionColumns, ImmutableList.of(new HivePartition(tableName, compactEffectivePredicate, buckets)), effectivePredicate, TupleDomain.none(), hiveBucketHandle);
}
List<Type> partitionTypes = partitionColumns.stream().map(column -> typeManager.getType(column.getTypeSignature())).collect(toList());
List<String> partitionNames = getFilteredPartitionNames(metastore, tableName, partitionColumns, effectivePredicate);
// do a final pass to filter based on fields that could not be used to filter the partitions
int partitionCount = 0;
ImmutableList.Builder<HivePartition> partitions = ImmutableList.builder();
for (String partitionName : partitionNames) {
Optional<Map<ColumnHandle, NullableValue>> values = parseValuesAndFilterPartition(partitionName, partitionColumns, partitionTypes, constraint);
if (values.isPresent()) {
if (partitionCount == maxPartitions) {
throw new PrestoException(HIVE_EXCEEDED_PARTITION_LIMIT, format("Query over table '%s' can potentially read more than %s partitions", hiveTableHandle.getSchemaTableName(), maxPartitions));
}
partitionCount++;
partitions.add(new HivePartition(tableName, compactEffectivePredicate, partitionName, values.get(), buckets));
}
}
// All partition key domains will be fully evaluated, so we don't need to include those
TupleDomain<ColumnHandle> remainingTupleDomain = TupleDomain.withColumnDomains(Maps.filterKeys(effectivePredicate.getDomains().get(), not(Predicates.in(partitionColumns))));
TupleDomain<ColumnHandle> enforcedTupleDomain = TupleDomain.withColumnDomains(Maps.filterKeys(effectivePredicate.getDomains().get(), Predicates.in(partitionColumns)));
return new HivePartitionResult(partitionColumns, partitions.build(), remainingTupleDomain, enforcedTupleDomain, hiveBucketHandle);
}
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