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new 62e543612ee Add HiveMetaDataLoader, PrestoConnectionPropertiesParser
and PrestoDatabaseMetaData spi implementation (#31662)
62e543612ee is described below
commit 62e543612ee2064c5ec2504ca6a177868379ec93
Author: Zhengqiang Duan <[email protected]>
AuthorDate: Wed Jun 12 13:59:40 2024 +0800
Add HiveMetaDataLoader, PrestoConnectionPropertiesParser and
PrestoDatabaseMetaData spi implementation (#31662)
* Add HiveMetaDataLoader, PrestoConnectionPropertiesParser and
PrestoDatabaseMetaData spi implementation
* adjust pom dependency
---
infra/database/type/hive/pom.xml | 231 +++++++++++++++++++++
.../metadata/data/loader/HiveMetaDataLoader.java | 96 +++++++++
...core.metadata.data.loader.DialectMetaDataLoader | 18 ++
infra/database/type/presto/pom.xml | 10 +
.../PrestoConnectionPropertiesParser.java | 45 ++++
.../metadata/database/PrestoDatabaseMetaData.java | 50 +++++
...abase.core.connector.ConnectionPropertiesParser | 18 ++
....core.metadata.database.DialectDatabaseMetaData | 18 ++
8 files changed, 486 insertions(+)
diff --git a/infra/database/type/hive/pom.xml b/infra/database/type/hive/pom.xml
index 5b98f914056..79252a4b28b 100644
--- a/infra/database/type/hive/pom.xml
+++ b/infra/database/type/hive/pom.xml
@@ -26,6 +26,10 @@
<artifactId>shardingsphere-infra-database-hive</artifactId>
<name>${project.artifactId}</name>
+ <properties>
+ <hive.version>3.1.3</hive.version>
+ </properties>
+
<dependencies>
<dependency>
<groupId>org.apache.shardingsphere</groupId>
@@ -33,6 +37,233 @@
<version>${project.version}</version>
</dependency>
+ <dependency>
+ <groupId>org.apache.hive</groupId>
+ <artifactId>hive-jdbc</artifactId>
+ <version>${hive.version}</version>
+ <scope>runtime</scope>
+ <exclusions>
+ <exclusion>
+ <groupId>com.github.joshelser</groupId>
+
<artifactId>dropwizard-metrics-hadoop-metrics2-reporter</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.zaxxer</groupId>
+ <artifactId>HikariCP-java7</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-log4j12</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-slf4j-impl</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-1.2-api</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>commons-collections</groupId>
+ <artifactId>commons-collections</artifactId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.hive</groupId>
+ <artifactId>hive-common</artifactId>
+ <version>${hive.version}</version>
+ <exclusions>
+ <exclusion>
+ <groupId>jdk.tools</groupId>
+ <artifactId>jdk.tools</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>commons-collections</groupId>
+ <artifactId>commons-collections</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-log4j12</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>log4j</groupId>
+ <artifactId>log4j</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-slf4j-impl</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-1.2-api</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-web</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.hadoop</groupId>
+ <artifactId>hadoop-yarn-server-resourcemanager</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-http</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-rewrite</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-server</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-servlet</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-webapp</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.orc</groupId>
+ <artifactId>orc-core</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.jcraft</groupId>
+ <artifactId>jsch</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>jline</groupId>
+ <artifactId>jline</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.github.joshelser</groupId>
+
<artifactId>dropwizard-metrics-hadoop-metrics2-reporter</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>io.dropwizard.metrics</groupId>
+ <artifactId>metrics-core</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>io.dropwizard.metrics</groupId>
+ <artifactId>metrics-json</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>io.dropwizard.metrics</groupId>
+ <artifactId>metrics-jvm</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.ant</groupId>
+ <artifactId>ant</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.zaxxer</groupId>
+ <artifactId>HikariCP-java7</artifactId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.hive</groupId>
+ <artifactId>hive-metastore</artifactId>
+ <version>${hive.version}</version>
+ <exclusions>
+ <exclusion>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-slf4j-impl</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-1.2-api</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.hive</groupId>
+ <artifactId>hive-serde</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>co.cask.tephra</groupId>
+ <artifactId>tephra-api</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>co.cask.tephra</groupId>
+ <artifactId>tephra-core</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>co.cask.tephra</groupId>
+ <artifactId>tephra-hbase-compat-1.0</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-server</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-servlet</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-util</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.eclipse.jetty</groupId>
+ <artifactId>jetty-webapp</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.sun.jersey</groupId>
+ <artifactId>jersey-servlet</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.orc</groupId>
+ <artifactId>orc-core</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.jruby.joni</groupId>
+ <artifactId>joni</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>sqlline</groupId>
+ <artifactId>sqlline</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.hbase</groupId>
+ <artifactId>hbase-metrics</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>org.apache.hbase</groupId>
+ <artifactId>hbase-metrics-api</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>io.dropwizard.metrics</groupId>
+ <artifactId>metrics-core</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>io.dropwizard.metrics</groupId>
+ <artifactId>metrics-json</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>io.dropwizard.metrics</groupId>
+ <artifactId>metrics-jvm</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.github.joshelser</groupId>
+
<artifactId>dropwizard-metrics-hadoop-metrics2-reporter</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>com.jolbox</groupId>
+ <artifactId>bonecp</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>commons-dbcp</groupId>
+ <artifactId>commons-dbcp</artifactId>
+ </exclusion>
+ <exclusion>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>shardingsphere-test-util</artifactId>
diff --git
a/infra/database/type/hive/src/main/java/org/apache/shardingsphere/infra/database/hive/metadata/data/loader/HiveMetaDataLoader.java
b/infra/database/type/hive/src/main/java/org/apache/shardingsphere/infra/database/hive/metadata/data/loader/HiveMetaDataLoader.java
new file mode 100644
index 00000000000..6c58c7aeb9a
--- /dev/null
+++
b/infra/database/type/hive/src/main/java/org/apache/shardingsphere/infra/database/hive/metadata/data/loader/HiveMetaDataLoader.java
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.shardingsphere.infra.database.hive.metadata.data.loader;
+
+import org.apache.hadoop.hive.conf.HiveConf;
+import org.apache.hadoop.hive.metastore.HiveMetaStoreClient;
+import org.apache.hadoop.hive.metastore.api.FieldSchema;
+import org.apache.hadoop.hive.metastore.api.Table;
+import
org.apache.shardingsphere.infra.database.core.metadata.data.loader.DialectMetaDataLoader;
+import
org.apache.shardingsphere.infra.database.core.metadata.data.loader.MetaDataLoaderMaterial;
+import
org.apache.shardingsphere.infra.database.core.metadata.data.model.ColumnMetaData;
+import
org.apache.shardingsphere.infra.database.core.metadata.data.model.SchemaMetaData;
+import
org.apache.shardingsphere.infra.database.core.metadata.data.model.TableMetaData;
+import
org.apache.shardingsphere.infra.database.core.metadata.database.datatype.DataTypeLoader;
+import org.apache.thrift.TException;
+
+import javax.sql.DataSource;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.sql.Types;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.Map;
+
+/**
+ * Hive meta data loader.
+ */
+public final class HiveMetaDataLoader implements DialectMetaDataLoader {
+
+ private static final String HIVE_METASTORE_URIS = "hive.metastore.uris";
+
+ @Override
+ public Collection<SchemaMetaData> load(final MetaDataLoaderMaterial
material) throws SQLException {
+ HiveMetaStoreClient storeClient = null;
+ try {
+ // TODO Support set hive.metastore uris when register storage unit.
+ HiveConf hiveConf = new HiveConf();
+ hiveConf.set(HIVE_METASTORE_URIS, "");
+ storeClient = new HiveMetaStoreClient(hiveConf);
+ return Collections.singletonList(new
SchemaMetaData(material.getDefaultSchemaName(),
+
getTableMetaData(storeClient.getAllTables(material.getDefaultSchemaName()),
storeClient, material)));
+ } catch (final TException ignored) {
+ throw new SQLException();
+ } finally {
+ if (null != storeClient) {
+ storeClient.close();
+ }
+ }
+ }
+
+ private Collection<TableMetaData> getTableMetaData(final
Collection<String> tables, final HiveMetaStoreClient storeClient, final
MetaDataLoaderMaterial material) throws TException, SQLException {
+ Map<String, Integer> dataTypes = getDataType(material.getDataSource());
+ Collection<TableMetaData> result = new LinkedList<>();
+ for (String each : tables) {
+ result.add(new TableMetaData(each,
getColumnMetaData(storeClient.getTable(material.getDefaultSchemaName(), each),
dataTypes), Collections.emptyList(), Collections.emptyList()));
+ }
+ return result;
+ }
+
+ private Map<String, Integer> getDataType(final DataSource dataSource)
throws SQLException {
+ try (
+ Connection connection = dataSource.getConnection()) {
+ return new DataTypeLoader().load(connection.getMetaData(),
getType());
+ }
+ }
+
+ private Collection<ColumnMetaData> getColumnMetaData(final Table table,
final Map<String, Integer> dataTypes) {
+ Collection<ColumnMetaData> result = new LinkedList<>();
+ for (FieldSchema each : table.getSd().getCols()) {
+ result.add(new ColumnMetaData(each.getName(), null ==
dataTypes.get(each.getType()) ? Types.VARCHAR : dataTypes.get(each.getType()),
+ false, false, false, false, false, false));
+ }
+ return result;
+ }
+
+ @Override
+ public String getDatabaseType() {
+ return "Hive";
+ }
+}
diff --git
a/infra/database/type/hive/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.database.core.metadata.data.loader.DialectMetaDataLoader
b/infra/database/type/hive/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.database.core.metadata.data.loader.DialectMetaDataLoader
new file mode 100644
index 00000000000..6522f228700
--- /dev/null
+++
b/infra/database/type/hive/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.database.core.metadata.data.loader.DialectMetaDataLoader
@@ -0,0 +1,18 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
+org.apache.shardingsphere.infra.database.hive.metadata.data.loader.HiveMetaDataLoader
diff --git a/infra/database/type/presto/pom.xml
b/infra/database/type/presto/pom.xml
index d6f4c100004..5e588446dab 100644
--- a/infra/database/type/presto/pom.xml
+++ b/infra/database/type/presto/pom.xml
@@ -26,12 +26,22 @@
<artifactId>shardingsphere-infra-database-presto</artifactId>
<name>${project.artifactId}</name>
+ <properties>
+ <presto.version>0.282</presto.version>
+ </properties>
+
<dependencies>
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>shardingsphere-infra-database-core</artifactId>
<version>${project.version}</version>
</dependency>
+ <dependency>
+ <groupId>com.facebook.presto</groupId>
+ <artifactId>presto-jdbc</artifactId>
+ <version>${presto.version}</version>
+ <scope>runtime</scope>
+ </dependency>
<dependency>
<groupId>org.apache.shardingsphere</groupId>
diff --git
a/infra/database/type/presto/src/main/java/org/apache/shardingsphere/infra/database/presto/connector/PrestoConnectionPropertiesParser.java
b/infra/database/type/presto/src/main/java/org/apache/shardingsphere/infra/database/presto/connector/PrestoConnectionPropertiesParser.java
new file mode 100644
index 00000000000..79ee9779755
--- /dev/null
+++
b/infra/database/type/presto/src/main/java/org/apache/shardingsphere/infra/database/presto/connector/PrestoConnectionPropertiesParser.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.shardingsphere.infra.database.presto.connector;
+
+import
org.apache.shardingsphere.infra.database.core.connector.ConnectionProperties;
+import
org.apache.shardingsphere.infra.database.core.connector.ConnectionPropertiesParser;
+import
org.apache.shardingsphere.infra.database.core.connector.StandardConnectionProperties;
+import org.apache.shardingsphere.infra.database.core.connector.url.JdbcUrl;
+import
org.apache.shardingsphere.infra.database.core.connector.url.StandardJdbcUrlParser;
+
+import java.util.Properties;
+
+/**
+ * Connection properties parser of Presto.
+ */
+public final class PrestoConnectionPropertiesParser implements
ConnectionPropertiesParser {
+
+ private static final int DEFAULT_PORT = 8080;
+
+ @Override
+ public ConnectionProperties parse(final String url, final String username,
final String catalog) {
+ JdbcUrl jdbcUrl = new StandardJdbcUrlParser().parse(url);
+ return new StandardConnectionProperties(jdbcUrl.getHostname(),
jdbcUrl.getPort(DEFAULT_PORT), jdbcUrl.getDatabase(), null,
jdbcUrl.getQueryProperties(), new Properties());
+ }
+
+ @Override
+ public String getDatabaseType() {
+ return "Presto";
+ }
+}
diff --git
a/infra/database/type/presto/src/main/java/org/apache/shardingsphere/infra/database/presto/metadata/database/PrestoDatabaseMetaData.java
b/infra/database/type/presto/src/main/java/org/apache/shardingsphere/infra/database/presto/metadata/database/PrestoDatabaseMetaData.java
new file mode 100644
index 00000000000..5861adfe9be
--- /dev/null
+++
b/infra/database/type/presto/src/main/java/org/apache/shardingsphere/infra/database/presto/metadata/database/PrestoDatabaseMetaData.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.shardingsphere.infra.database.presto.metadata.database;
+
+import
org.apache.shardingsphere.infra.database.core.metadata.database.DialectDatabaseMetaData;
+import
org.apache.shardingsphere.infra.database.core.metadata.database.enums.NullsOrderType;
+import
org.apache.shardingsphere.infra.database.core.metadata.database.enums.QuoteCharacter;
+
+import java.util.Optional;
+
+/**
+ * Database meta data of Presto.
+ */
+public final class PrestoDatabaseMetaData implements DialectDatabaseMetaData {
+
+ @Override
+ public QuoteCharacter getQuoteCharacter() {
+ return QuoteCharacter.QUOTE;
+ }
+
+ @Override
+ public NullsOrderType getDefaultNullsOrderType() {
+ return NullsOrderType.FIRST;
+ }
+
+ @Override
+ public Optional<String> getDefaultSchema() {
+ return Optional.of("default");
+ }
+
+ @Override
+ public String getDatabaseType() {
+ return "Presto";
+ }
+}
diff --git
a/infra/database/type/presto/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.database.core.connector.ConnectionPropertiesParser
b/infra/database/type/presto/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.database.core.connector.ConnectionPropertiesParser
new file mode 100644
index 00000000000..a8d92ace00d
--- /dev/null
+++
b/infra/database/type/presto/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.database.core.connector.ConnectionPropertiesParser
@@ -0,0 +1,18 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
+org.apache.shardingsphere.infra.database.presto.connector.PrestoConnectionPropertiesParser
diff --git
a/infra/database/type/presto/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.database.core.metadata.database.DialectDatabaseMetaData
b/infra/database/type/presto/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.database.core.metadata.database.DialectDatabaseMetaData
new file mode 100644
index 00000000000..9470ef71565
--- /dev/null
+++
b/infra/database/type/presto/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.database.core.metadata.database.DialectDatabaseMetaData
@@ -0,0 +1,18 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
+org.apache.shardingsphere.infra.database.presto.metadata.database.PrestoDatabaseMetaData
