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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
*
* 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.hive;
import com.google.common.collect.ImmutableList;
import io.trino.tempto.AfterMethodWithContext;
import io.trino.tempto.BeforeMethodWithContext;
import io.trino.tempto.ProductTest;
import io.trino.tempto.assertions.QueryAssert;
import io.trino.tempto.query.QueryExecutionException;
import io.trino.tempto.query.QueryResult;
import org.assertj.core.api.Condition;
import org.testng.annotations.Test;
import java.util.List;
import static com.google.common.base.Strings.nullToEmpty;
import static com.google.common.base.Verify.verify;
import static com.google.common.collect.ImmutableList.toImmutableList;
import static io.trino.tempto.assertions.QueryAssert.Row.row;
import static io.trino.tempto.assertions.QueryAssert.assertQueryFailure;
import static io.trino.tests.product.TestGroups.HMS_ONLY;
import static io.trino.tests.product.TestGroups.STORAGE_FORMATS;
import static io.trino.tests.product.utils.QueryExecutors.onTrino;
import static java.util.Objects.requireNonNull;
import static org.assertj.core.api.Assertions.assertThat;
public class TestHiveSchema
extends ProductTest
{
@BeforeMethodWithContext
public void setUp()
{
// make sure hive.default schema is not empty
onTrino().executeQuery("DROP TABLE IF EXISTS hive.default.test_sys_schema_disabled_table_in_default");
onTrino().executeQuery("CREATE TABLE hive.default.test_sys_schema_disabled_table_in_default(a bigint)");
}
@AfterMethodWithContext
public void tearDown()
{
onTrino().executeQuery("DROP TABLE hive.default.test_sys_schema_disabled_table_in_default");
}
// Note: this test is run on various Hive versions. Hive before 3 did not have `sys` schema, but it does not hurt to run the test there too.
@Test(groups = {STORAGE_FORMATS, HMS_ONLY})
public void testSysSchemaFilteredOut()
{
// SHOW SCHEMAS
assertThat(onTrino().executeQuery("SHOW SCHEMAS FROM hive"))
.satisfies(containsFirstColumnValue("information_schema"))
.satisfies(containsFirstColumnValue("default"))
.doesNotHave(containsFirstColumnValue("sys"));
// SHOW TABLES
assertQueryFailure(() -> onTrino().executeQuery("SHOW TABLES FROM hive.sys"))
.hasMessageContaining("line 1:1: Schema 'sys' does not exist");
// SHOW COLUMNS
assertQueryFailure(() -> onTrino().executeQuery("SHOW COLUMNS FROM hive.sys.version")) // sys.version exists in Hive 3 and is a view
.hasMessageContaining("line 1:1: Schema 'sys' does not exist");
assertQueryFailure(() -> onTrino().executeQuery("SHOW COLUMNS FROM hive.sys.table_params")) // sys.table_params exists in Hive 3 and is a table
.hasMessageContaining("line 1:1: Schema 'sys' does not exist");
// DESCRIBE
assertQueryFailure(() -> onTrino().executeQuery("DESCRIBE hive.sys.version")) // sys.version exists in Hive 3 and is a view
.hasMessageContaining("line 1:1: Schema 'sys' does not exist");
assertQueryFailure(() -> onTrino().executeQuery("DESCRIBE hive.sys.table_params")) // sys.table_params exists in Hive 3 and is a table
.hasMessageContaining("line 1:1: Schema 'sys' does not exist");
// information_schema.schemata
assertThat(onTrino().executeQuery("SELECT schema_name FROM information_schema.schemata"))
.satisfies(containsFirstColumnValue("information_schema"))
.satisfies(containsFirstColumnValue("default"))
.doesNotHave(containsFirstColumnValue("sys"));
// information_schema.tables
assertThat(onTrino().executeQuery("SELECT DISTINCT table_schema FROM information_schema.tables"))
.satisfies(containsFirstColumnValue("information_schema"))
.satisfies(containsFirstColumnValue("default"))
.doesNotHave(containsFirstColumnValue("sys"));
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.tables WHERE table_schema = 'sys'"))
.hasNoRows();
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.tables WHERE table_schema = 'sys' AND table_name = 'version'")) // sys.version exists in Hive 3
.hasNoRows();
// information_schema.columns -- it has a special handling path in metadata, which also depends on query predicates
assertThat(onTrino().executeQuery("SELECT DISTINCT table_schema FROM information_schema.columns"))
.satisfies(containsFirstColumnValue("information_schema"))
.satisfies(containsFirstColumnValue("default"))
.doesNotHave(containsFirstColumnValue("sys"));
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.columns WHERE table_schema = 'sys'"))
.hasNoRows();
assertThat(onTrino().executeQuery("SELECT column_name FROM information_schema.columns WHERE table_schema = 'sys' AND table_name = 'version'")) // sys.version exists in Hive 3
.hasNoRows();
// information_schema.table_privileges -- it has a special handling path in metadata, which also depends on query predicates
if (tablePrivilegesSupported()) {
assertThat(onTrino().executeQuery("SELECT DISTINCT table_schema FROM information_schema.table_privileges"))
.doesNotHave(containsFirstColumnValue("information_schema"))
.satisfies(containsFirstColumnValue("default"))
.doesNotHave(containsFirstColumnValue("sys"));
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.table_privileges WHERE table_schema = 'sys'"))
.hasNoRows();
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.table_privileges WHERE table_schema = 'sys' AND table_name = 'version'")) // sys.version exists in Hive 3
.hasNoRows();
}
// SELECT
assertQueryFailure(() -> onTrino().executeQuery("SELECT * FROM hive.sys.version")) // sys.version exists in Hive 3 and is a view
.hasMessageContaining("line 1:15: Schema 'sys' does not exist");
assertQueryFailure(() -> onTrino().executeQuery("SELECT * FROM hive.sys.table_params")) // sys.table_params exists in Hive 3 and is a table
.hasMessageContaining("line 1:15: Schema 'sys' does not exist");
}
// Note: this test is run on various Hive versions. Hive before 3 did not have `information_schema` schema, but it does not hurt to run the test there too.
@Test(groups = {STORAGE_FORMATS, HMS_ONLY})
public void testHiveInformationSchemaFilteredOut()
{
List allInformationSchemaTables = ImmutableList.builder()
// In particular, no column_privileges which exists in Hive 3's information_schema
.add("columns")
.add("tables")
.add("views")
.add("schemata")
.add("table_privileges")
.add("roles")
.add("applicable_roles")
.add("enabled_roles")
.build();
List allInformationSchemaTablesAsRows = allInformationSchemaTables.stream()
.map(QueryAssert.Row::row)
.collect(toImmutableList());
// This test is run in various setups and we may or may not have access to hive.information_schema.roles table
List allInformationSchemaTablesExceptRoles = allInformationSchemaTables.stream()
.filter(tableName -> !tableName.equals("roles"))
.collect(toImmutableList());
List allInformationSchemaTablesExceptRolesAsRows = allInformationSchemaTablesExceptRoles.stream()
.map(QueryAssert.Row::row)
.collect(toImmutableList());
// SHOW SCHEMAS
assertThat(onTrino().executeQuery("SHOW SCHEMAS FROM hive"))
.satisfies(containsFirstColumnValue("information_schema"));
// SHOW TABLES
assertThat(onTrino().executeQuery("SHOW TABLES FROM hive.information_schema"))
.satisfies(containsFirstColumnValue("tables"))
.satisfies(containsFirstColumnValue("columns"))
.satisfies(containsFirstColumnValue("table_privileges"))
.doesNotHave(containsFirstColumnValue("column_privileges")); // Hive 3's information_schema has column_privileges view
// SHOW COLUMNS
assertThat(onTrino().executeQuery("SHOW COLUMNS FROM hive.information_schema.columns"))
.satisfies(containsFirstColumnValue("table_catalog"))
.satisfies(containsFirstColumnValue("table_schema"))
.doesNotHave(containsFirstColumnValue("is_updatable")); // Hive 3's information_schema.columns has is_updatable column
assertQueryFailure(() -> onTrino().executeQuery("SHOW COLUMNS FROM hive.information_schema.column_privileges")) // Hive 3's information_schema has column_privileges view
.hasMessageContaining("line 1:1: Table 'hive.information_schema.column_privileges' does not exist");
// DESCRIBE
assertThat(onTrino().executeQuery("DESCRIBE hive.information_schema.columns"))
.satisfies(containsFirstColumnValue("table_catalog"))
.satisfies(containsFirstColumnValue("table_schema"))
.satisfies(containsFirstColumnValue("column_name"))
.doesNotHave(containsFirstColumnValue("is_updatable")); // Hive 3's information_schema.columns has is_updatable column
assertQueryFailure(() -> onTrino().executeQuery("DESCRIBE hive.information_schema.column_privileges")) // Hive 3's information_schema has column_privileges view
.hasMessageContaining("line 1:1: Table 'hive.information_schema.column_privileges' does not exist");
// information_schema.schemata
assertThat(onTrino().executeQuery("SELECT schema_name FROM information_schema.schemata"))
.satisfies(containsFirstColumnValue("information_schema"));
// information_schema.tables
assertThat(onTrino().executeQuery("SELECT DISTINCT table_schema FROM information_schema.tables"))
.satisfies(containsFirstColumnValue("information_schema"));
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.tables WHERE table_schema = 'information_schema'"))
.containsOnly(allInformationSchemaTablesAsRows);
assertThat(onTrino().executeQuery("SELECT table_schema, table_name FROM information_schema.tables").rows().stream()
.filter(row -> row.get(0).equals("information_schema"))
.map(row -> (String) row.get(1)))
.containsOnly(allInformationSchemaTables.toArray(new String[0]));
// information_schema.column_privileges exists in Hive 3
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.tables WHERE table_schema = 'information_schema' AND table_name = 'column_privileges'"))
.hasNoRows();
// information_schema.columns -- it has a special handling path in metadata, which also depends on query predicates
assertThat(onTrino().executeQuery("SELECT DISTINCT table_schema FROM information_schema.columns"))
.satisfies(containsFirstColumnValue("information_schema"));
assertThat(onTrino().executeQuery("SELECT DISTINCT table_name FROM information_schema.columns WHERE table_schema = 'information_schema' AND table_name != 'roles'"))
.containsOnly(allInformationSchemaTablesExceptRolesAsRows);
assertThat(onTrino().executeQuery("SELECT table_schema, table_name, column_name FROM information_schema.columns").rows().stream()
.filter(row -> row.get(0).equals("information_schema"))
.map(row -> (String) row.get(1))
.filter(tableName -> !tableName.equals("roles"))
.distinct())
.containsOnly(allInformationSchemaTablesExceptRoles.toArray(new String[0]));
assertThat(onTrino().executeQuery("SELECT column_name FROM information_schema.columns WHERE table_schema = 'information_schema' AND table_name = 'columns'"))
.containsOnly(
// In particular, no is_updatable column which exists in Hive 3's information_schema.columns
row("table_catalog"),
row("table_schema"),
row("table_name"),
row("column_name"),
row("ordinal_position"),
row("column_default"),
row("is_nullable"),
row("data_type"));
// information_schema.column_privileges exists in Hive 3
assertThat(onTrino().executeQuery("SELECT column_name FROM information_schema.columns WHERE table_schema = 'information_schema' AND table_name = 'column_privileges'"))
.hasNoRows();
// information_schema.table_privileges -- it has a special handling path in metadata, which also depends on query predicates
if (tablePrivilegesSupported()) {
assertThat(onTrino().executeQuery("SELECT DISTINCT table_schema FROM information_schema.table_privileges"))
.satisfies(containsFirstColumnValue("default"))
.doesNotHave(containsFirstColumnValue("information_schema")); // tables in information_schema have no privileges
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.table_privileges WHERE table_schema = 'information_schema'"))
.hasNoRows(); // tables in information_schema have no privileges
assertThat(onTrino().executeQuery("SELECT table_schema, table_name, privilege_type FROM information_schema.table_privileges").rows().stream()
.filter(row -> row.get(0).equals("information_schema"))
.map(row -> (String) row.get(1)))
.isEmpty(); // tables in information_schema have no privileges
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.table_privileges WHERE table_schema = 'information_schema' AND table_name = 'columns'"))
.hasNoRows();
// information_schema.column_privileges exists in Hive 3
assertThat(onTrino().executeQuery("SELECT table_name FROM information_schema.table_privileges WHERE table_schema = 'information_schema' AND table_name = 'column_privileges'"))
.hasNoRows();
}
// SELECT
assertQueryFailure(() -> onTrino().executeQuery("SELECT * FROM hive.information_schema.column_privileges")) // information_schema.column_privileges exists in Hive 3
.hasMessageContaining("line 1:15: Table 'hive.information_schema.column_privileges' does not exist");
}
/**
* Returns whether table privileges are supported in current setup.
*/
private boolean tablePrivilegesSupported()
{
try {
onTrino().executeQuery("SELECT * FROM information_schema.table_privileges");
return true;
}
catch (QueryExecutionException e) {
if (nullToEmpty(e.getMessage()).endsWith(": This connector does not support table privileges")) {
return false;
}
throw e;
}
}
/**
* @apiNote The expected use context is in negative matching. This is why this method works on single values.
* When matching full rows, it would be possible to have false-positive results.
*/
private static Condition containsFirstColumnValue(T value)
{
requireNonNull(value, "value is null");
return new Condition<>(
queryResult -> {
List values = queryResult.column(1);
if (!values.isEmpty()) {
// When contains() is used in a negative context (doesNotHave(...)), it could be possible to get false-positives when types are wrong.
Class expectedType = value.getClass();
Class actualType = values.get(0).getClass();
verify(expectedType.equals(actualType), "Expected QueryResult to contain %s values, but it contains %s", expectedType, actualType);
}
return values.contains(value);
},
"Contains(%s)",
value);
}
}
