io.prestosql.tests.hive.TestHiveBucketedTables Maven / Gradle / Ivy
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* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.prestosql.tests.hive;
import com.google.common.collect.ImmutableList;
import io.prestosql.tempto.ProductTest;
import io.prestosql.tempto.Requirement;
import io.prestosql.tempto.Requirements;
import io.prestosql.tempto.RequirementsProvider;
import io.prestosql.tempto.configuration.Configuration;
import io.prestosql.tempto.fulfillment.table.MutableTableRequirement;
import io.prestosql.tempto.fulfillment.table.TableDefinitionsRepository;
import io.prestosql.tempto.fulfillment.table.hive.HiveTableDefinition;
import org.testng.annotations.Test;
import java.util.List;
import java.util.Optional;
import static io.prestosql.tempto.assertions.QueryAssert.Row.row;
import static io.prestosql.tempto.assertions.QueryAssert.assertThat;
import static io.prestosql.tempto.fulfillment.table.MutableTableRequirement.State.CREATED;
import static io.prestosql.tempto.fulfillment.table.MutableTableRequirement.State.PREPARED;
import static io.prestosql.tempto.fulfillment.table.MutableTablesState.mutableTablesState;
import static io.prestosql.tempto.fulfillment.table.TableRequirements.immutableTable;
import static io.prestosql.tempto.fulfillment.table.hive.tpch.TpchTableDefinitions.NATION;
import static io.prestosql.tempto.query.QueryExecutor.query;
import static io.prestosql.tests.TestGroups.BIG_QUERY;
import static io.prestosql.tests.TpchTableResults.PRESTO_NATION_RESULT;
import static io.prestosql.tests.utils.QueryExecutors.onHive;
import static io.prestosql.tests.utils.TableDefinitionUtils.mutableTableInstanceOf;
import static java.lang.String.format;
import static java.lang.String.join;
public class TestHiveBucketedTables
extends ProductTest
implements RequirementsProvider
{
@TableDefinitionsRepository.RepositoryTableDefinition
public static final HiveTableDefinition BUCKETED_NATION = bucketTableDefinition("bucket_nation", false, false);
@TableDefinitionsRepository.RepositoryTableDefinition
public static final HiveTableDefinition BUCKETED_NATION_PREPARED = HiveTableDefinition.builder("bucket_nation_prepared")
.setCreateTableDDLTemplate("Table %NAME% should be only used with CTAS queries")
.setNoData()
.build();
@TableDefinitionsRepository.RepositoryTableDefinition
public static final HiveTableDefinition BUCKETED_SORTED_NATION = bucketTableDefinition("bucketed_sorted_nation", true, false);
@TableDefinitionsRepository.RepositoryTableDefinition
public static final HiveTableDefinition BUCKETED_PARTITIONED_NATION = bucketTableDefinition("bucketed_partitioned_nation", false, true);
private static HiveTableDefinition bucketTableDefinition(String tableName, boolean sorted, boolean partitioned)
{
return HiveTableDefinition.builder(tableName)
.setCreateTableDDLTemplate("CREATE TABLE %NAME%(" +
"n_nationkey BIGINT," +
"n_name STRING," +
"n_regionkey BIGINT," +
"n_comment STRING) " +
(partitioned ? "PARTITIONED BY (part_key STRING) " : " ") +
"CLUSTERED BY (n_regionkey) " +
(sorted ? "SORTED BY (n_regionkey) " : " ") +
"INTO 2 BUCKETS " +
"ROW FORMAT DELIMITED FIELDS TERMINATED BY '|'")
.setNoData()
.build();
}
@Override
public Requirement getRequirements(Configuration configuration)
{
return Requirements.compose(
MutableTableRequirement.builder(BUCKETED_PARTITIONED_NATION).withState(CREATED).build(),
MutableTableRequirement.builder(BUCKETED_NATION).withState(CREATED).build(),
MutableTableRequirement.builder(BUCKETED_NATION_PREPARED).withState(PREPARED).build(),
MutableTableRequirement.builder(BUCKETED_SORTED_NATION).withState(CREATED).build(),
immutableTable(NATION));
}
@Test
public void testSelectStar()
{
String tableName = mutableTableInstanceOf(BUCKETED_NATION).getNameInDatabase();
populateHiveTable(tableName, NATION.getName());
assertThat(query("SELECT * FROM " + tableName)).matches(PRESTO_NATION_RESULT);
}
@Test(groups = {BIG_QUERY})
public void testIgnorePartitionBucketingIfNotBucketed()
{
String tableName = mutableTablesState().get(BUCKETED_PARTITIONED_NATION).getNameInDatabase();
populateHivePartitionedTable(tableName, NATION.getName(), "part_key = 'insert_1'");
populateHivePartitionedTable(tableName, NATION.getName(), "part_key = 'insert_2'");
onHive().executeQuery(format("ALTER TABLE %s NOT CLUSTERED", tableName));
assertThat(query(format("SELECT count(DISTINCT n_nationkey), count(*) FROM %s", tableName)))
.hasRowsCount(1)
.contains(row(25, 50));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_nationkey = 1", tableName)))
.containsExactly(row(2));
}
@Test(groups = {BIG_QUERY})
public void testAllowMultipleFilesPerBucket()
{
String tableName = mutableTablesState().get(BUCKETED_PARTITIONED_NATION).getNameInDatabase();
for (int i = 0; i < 3; i++) {
populateHivePartitionedTable(tableName, NATION.getName(), "part_key = 'insert'");
}
assertThat(query(format("SELECT count(DISTINCT n_nationkey), count(*) FROM %s", tableName)))
.hasRowsCount(1)
.contains(row(25, 75));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_nationkey = 1", tableName)))
.containsExactly(row(3));
}
@Test
public void testSelectAfterMultipleInserts()
{
String tableName = mutableTableInstanceOf(BUCKETED_NATION).getNameInDatabase();
populateHiveTable(tableName, NATION.getName());
populateHiveTable(tableName, NATION.getName());
assertThat(query(format("SELECT count(*) FROM %s WHERE n_nationkey = 1", tableName)))
.containsExactly(row(2));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_regionkey = 1", tableName)))
.containsExactly(row(10));
assertThat(query(format("SELECT n_regionkey, count(*) FROM %s GROUP BY n_regionkey", tableName)))
.containsOnly(row(0, 10), row(1, 10), row(2, 10), row(3, 10), row(4, 10));
assertThat(query(format("SELECT count(*) FROM %s n JOIN %s n1 ON n.n_regionkey = n1.n_regionkey", tableName, tableName)))
.containsExactly(row(500));
}
@Test
public void testSelectAfterMultipleInsertsForSortedTable()
{
String tableName = mutableTableInstanceOf(BUCKETED_SORTED_NATION).getNameInDatabase();
populateHiveTable(tableName, NATION.getName());
populateHiveTable(tableName, NATION.getName());
assertThat(query(format("SELECT count(*) FROM %s WHERE n_nationkey = 1", tableName)))
.containsExactly(row(2));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_regionkey = 1", tableName)))
.containsExactly(row(10));
assertThat(query(format("SELECT n_regionkey, count(*) FROM %s GROUP BY n_regionkey", tableName)))
.containsOnly(row(0, 10), row(1, 10), row(2, 10), row(3, 10), row(4, 10));
assertThat(query(format("SELECT count(*) FROM %s n JOIN %s n1 ON n.n_regionkey = n1.n_regionkey", tableName, tableName)))
.containsExactly(row(500));
}
@Test
public void testSelectAfterMultipleInsertsForPartitionedTable()
{
String tableName = mutableTableInstanceOf(BUCKETED_PARTITIONED_NATION).getNameInDatabase();
populateHivePartitionedTable(tableName, NATION.getName(), "part_key = 'insert_1'");
populateHivePartitionedTable(tableName, NATION.getName(), "part_key = 'insert_2'");
populateHivePartitionedTable(tableName, NATION.getName(), "part_key = 'insert_1'");
populateHivePartitionedTable(tableName, NATION.getName(), "part_key = 'insert_2'");
assertThat(query(format("SELECT count(*) FROM %s WHERE n_nationkey = 1", tableName)))
.containsExactly(row(4));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_regionkey = 1", tableName)))
.containsExactly(row(20));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_regionkey = 1 AND part_key = 'insert_1'", tableName)))
.hasRowsCount(1)
.containsExactly(row(10));
assertThat(query(format("SELECT n_regionkey, count(*) FROM %s WHERE part_key = 'insert_2' GROUP BY n_regionkey", tableName)))
.containsOnly(row(0, 10), row(1, 10), row(2, 10), row(3, 10), row(4, 10));
assertThat(query(format("SELECT count(*) FROM %s n JOIN %s n1 ON n.n_regionkey = n1.n_regionkey", tableName, tableName)))
.containsExactly(row(2000));
assertThat(query(format("SELECT count(*) FROM %s n JOIN %s n1 ON n.n_regionkey = n1.n_regionkey WHERE n.part_key = 'insert_1'", tableName, tableName)))
.containsExactly(row(1000));
}
@Test
public void testSelectFromEmptyBucketedTableEmptyTablesAllowed()
{
String tableName = mutableTableInstanceOf(BUCKETED_NATION).getNameInDatabase();
assertThat(query(format("SELECT count(*) FROM %s", tableName)))
.containsExactly(row(0));
}
@Test
public void testSelectFromIncompleteBucketedTableEmptyTablesAllowed()
{
String tableName = mutableTableInstanceOf(BUCKETED_NATION).getNameInDatabase();
populateRowToHiveTable(tableName, ImmutableList.of("2", "'name'", "2", "'comment'"), Optional.empty());
// insert one row into nation
assertThat(query(format("SELECT count(*) from %s", tableName)))
.containsExactly(row(1));
assertThat(query(format("select n_nationkey from %s where n_regionkey = 2", tableName)))
.containsExactly(row(2));
}
@Test
public void testInsertPartitionedBucketed()
{
String tableName = mutableTablesState().get(BUCKETED_NATION_PREPARED).getNameInDatabase();
String ctasQuery = "CREATE TABLE %s WITH (bucket_count = 4, bucketed_by = ARRAY['n_regionkey'], partitioned_by = ARRAY['part_key']) " +
"AS SELECT n_nationkey, n_name, n_regionkey, n_comment, n_name as part_key FROM %s";
query(format(ctasQuery, tableName, NATION.getName()));
assertThat(query(format("SELECT count(*) FROM %s", tableName))).containsExactly(row(25));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_regionkey=0", tableName))).containsExactly(row(5));
assertThat(query(format("SELECT count(*) FROM %s WHERE part_key='ALGERIA'", tableName))).containsExactly(row(1));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_regionkey=0 AND part_key='ALGERIA'", tableName))).containsExactly(row(1));
}
@Test
public void testCreatePartitionedBucketedTableAsSelect()
{
String tableName = mutableTablesState().get(BUCKETED_PARTITIONED_NATION).getNameInDatabase();
query(format("INSERT INTO %s SELECT n_nationkey, n_name, n_regionkey, n_comment, n_name FROM %s", tableName, NATION.getName()));
assertThat(query(format("SELECT count(*) FROM %s", tableName))).containsExactly(row(25));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_regionkey=0", tableName))).containsExactly(row(5));
assertThat(query(format("SELECT count(*) FROM %s WHERE part_key='ALGERIA'", tableName))).containsExactly(row(1));
assertThat(query(format("SELECT count(*) FROM %s WHERE n_regionkey=0 AND part_key='ALGERIA'", tableName))).containsExactly(row(1));
}
@Test
public void testInsertIntoBucketedTables()
{
String tableName = mutableTablesState().get(BUCKETED_NATION).getNameInDatabase();
assertThat(() -> query(format("INSERT INTO %s SELECT * FROM %s", tableName, NATION.getName())))
.failsWithMessage("Cannot insert into bucketed unpartitioned Hive table");
}
@Test
public void testCreateBucketedTableAsSelect()
{
String tableName = mutableTablesState().get(BUCKETED_NATION_PREPARED).getNameInDatabase();
// nations has 25 rows and NDV=5 for n_regionkey, setting bucket_count=10 will surely create empty buckets
query(format("CREATE TABLE %s WITH (bucket_count = 10, bucketed_by = ARRAY['n_regionkey']) AS SELECT * FROM %s", tableName, NATION.getName()));
assertThat(query(format("SELECT * FROM %s", tableName))).matches(PRESTO_NATION_RESULT);
assertThat(query(format("SELECT count(*) FROM %s WHERE n_regionkey=0", tableName))).containsExactly(row(5));
}
private static void populateRowToHiveTable(String destination, List values, Optional partition)
{
String queryStatement = format("INSERT INTO TABLE %s" +
(partition.isPresent() ? format(" PARTITION (%s) ", partition.get()) : " ") +
"SELECT %s from (select 'foo') x",
destination, join(",", values));
onHive().executeQuery("set hive.enforce.bucketing = true");
onHive().executeQuery("set hive.enforce.sorting = true");
onHive().executeQuery(queryStatement);
}
private static void populateHivePartitionedTable(String destination, String source, String partition)
{
String queryStatement = format("INSERT INTO TABLE %s PARTITION (%s) SELECT * FROM %s", destination, partition, source);
onHive().executeQuery("set hive.enforce.bucketing = true");
onHive().executeQuery("set hive.enforce.sorting = true");
onHive().executeQuery(queryStatement);
}
private static void populateHiveTable(String destination, String source)
{
onHive().executeQuery("set hive.enforce.bucketing = true");
onHive().executeQuery("set hive.enforce.sorting = true");
onHive().executeQuery(format("INSERT INTO TABLE %s SELECT * FROM %s", destination, source));
}
}
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