Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* 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
*
* 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.trino.tests.product;
import io.trino.tempto.AfterMethodWithContext;
import io.trino.tempto.BeforeMethodWithContext;
import io.trino.tempto.ProductTest;
import io.trino.tempto.Requires;
import io.trino.tempto.fulfillment.table.hive.tpch.ImmutableTpchTablesRequirements.ImmutableNationTable;
import org.testng.annotations.Test;
import static io.trino.tempto.assertions.QueryAssert.Row.row;
import static io.trino.tempto.assertions.QueryAssert.assertQueryFailure;
import static io.trino.tests.product.TestGroups.SMOKE;
import static io.trino.tests.product.utils.QueryExecutors.onTrino;
import static java.lang.String.format;
import static org.assertj.core.api.Assertions.assertThat;
@Requires(ImmutableNationTable.class)
public class TestAlterTable
extends ProductTest
{
private static final String TABLE_NAME = "table_name";
private static final String RENAMED_TABLE_NAME = "renamed_table_name";
@BeforeMethodWithContext
@AfterMethodWithContext
public void dropTestTables()
{
onTrino().executeQuery(format("DROP TABLE IF EXISTS %s", TABLE_NAME));
onTrino().executeQuery(format("DROP TABLE IF EXISTS %s", RENAMED_TABLE_NAME));
}
@Test(groups = SMOKE)
public void renameTable()
{
onTrino().executeQuery(format("CREATE TABLE %s AS SELECT * FROM nation", TABLE_NAME));
assertThat(onTrino().executeQuery(format("ALTER TABLE %s RENAME TO %s", TABLE_NAME, RENAMED_TABLE_NAME)))
.hasRowsCount(1);
assertThat(onTrino().executeQuery(format("SELECT * FROM %s", RENAMED_TABLE_NAME)))
.hasRowsCount(25);
// rename back to original name
assertThat(onTrino().executeQuery(format("ALTER TABLE %s RENAME TO %s", RENAMED_TABLE_NAME, TABLE_NAME)))
.hasRowsCount(1);
}
@Test(groups = SMOKE)
public void renameColumn()
{
onTrino().executeQuery(format("CREATE TABLE %s AS SELECT * FROM nation", TABLE_NAME));
assertThat(onTrino().executeQuery(format("ALTER TABLE %s RENAME COLUMN n_nationkey TO nationkey", TABLE_NAME)))
.hasRowsCount(1);
assertThat(onTrino().executeQuery(format("SELECT count(nationkey) FROM %s", TABLE_NAME)))
.containsExactlyInOrder(row(25));
assertQueryFailure(() -> onTrino().executeQuery(format("ALTER TABLE %s RENAME COLUMN nationkey TO nATIoNkEy", TABLE_NAME)))
.hasMessageContaining("Column 'nationkey' already exists");
assertQueryFailure(() -> onTrino().executeQuery(format("ALTER TABLE %s RENAME COLUMN nationkey TO n_regionkeY", TABLE_NAME)))
.hasMessageContaining("Column 'n_regionkey' already exists");
onTrino().executeQuery(format("ALTER TABLE %s RENAME COLUMN nationkey TO n_nationkey", TABLE_NAME));
}
@Test(groups = SMOKE)
public void addColumn()
{
onTrino().executeQuery(format("CREATE TABLE %s AS SELECT * FROM nation", TABLE_NAME));
assertThat(onTrino().executeQuery(format("SELECT count(1) FROM %s", TABLE_NAME)))
.containsExactlyInOrder(row(25));
assertThat(onTrino().executeQuery(format("ALTER TABLE %s ADD COLUMN some_new_column BIGINT", TABLE_NAME)))
.hasRowsCount(1);
assertQueryFailure(() -> onTrino().executeQuery(format("ALTER TABLE %s ADD COLUMN n_nationkey BIGINT", TABLE_NAME)))
.hasMessageContaining("Column 'n_nationkey' already exists");
assertQueryFailure(() -> onTrino().executeQuery(format("ALTER TABLE %s ADD COLUMN n_naTioNkEy BIGINT", TABLE_NAME)))
.hasMessageContaining("Column 'n_naTioNkEy' already exists");
}
@Test(groups = SMOKE)
public void dropColumn()
{
onTrino().executeQuery(format("CREATE TABLE %s AS SELECT n_nationkey, n_regionkey, n_name FROM nation", TABLE_NAME));
assertThat(onTrino().executeQuery(format("SELECT count(n_nationkey) FROM %s", TABLE_NAME)))
.containsExactlyInOrder(row(25));
assertThat(onTrino().executeQuery(format("ALTER TABLE %s DROP COLUMN n_name", TABLE_NAME)))
.hasRowsCount(1);
assertThat(onTrino().executeQuery(format("ALTER TABLE %s DROP COLUMN n_nationkey", TABLE_NAME)))
.hasRowsCount(1);
assertQueryFailure(() -> onTrino().executeQuery(format("ALTER TABLE %s DROP COLUMN n_regionkey", TABLE_NAME)))
.hasMessageContaining("Cannot drop the only column in a table");
onTrino().executeQuery(format("DROP TABLE IF EXISTS %s", TABLE_NAME));
}
}
