Add Oracle connector

.github/workflows/ci.yml

@@ -136,6 +136,7 @@ jobs:
             !presto-mongodb,!presto-kafka,!presto-elasticsearch,
             !presto-redis,
             !presto-sqlserver,!presto-postgresql,!presto-mysql,
+            !presto-oracle,
             !presto-phoenix,!presto-iceberg,
             !presto-docs,!presto-server,!presto-server-rpm,
             !presto-kudu'
@@ -159,6 +160,7 @@ jobs:
           - "presto-sqlserver,presto-postgresql,presto-mysql"
           - "presto-phoenix,presto-iceberg"
           - "presto-kudu"
+          - "presto-oracle"
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-java@v1

pom.xml

@@ -141,6 +141,7 @@
         <module>presto-google-sheets</module>
         <module>presto-bigquery</module>
         <module>presto-pinot</module>
+        <module>presto-oracle</module>
     </modules>
 
     <dependencyManagement>

presto-docs/src/main/sphinx/connector.rst

@@ -27,6 +27,7 @@ from different data sources.
     connector/memsql
     connector/mongodb
     connector/mysql
+    connector/oracle
     connector/phoenix
     connector/pinot
     connector/postgresql

presto-docs/src/main/sphinx/connector/oracle.rst

@@ -0,0 +1,71 @@
+================
+Oracle Connector
+================
+
+The Oracle connector allows querying and creating tables in an
+external Oracle database. This can be used to join data between
+different systems like Oracle and Hive, or between two different
+Oracle instances.
+
+Configuration
+-------------
+
+To configure the Oracle connector, create a catalog properties file
+in ``etc/catalog`` named, for example, ``oracle.properties``, to
+mount the Oracle connector as the ``oracle`` catalog.
+Create the file with the following contents, replacing the
+connection properties as appropriate for your setup:
+
+.. code-block:: none
+
+    connector.name=oracle
+    connection-url=jdbc:oracle:thin:@example.net:1521/ORCLCDB
+    connection-user=root
+    connection-password=secret
+
+Multiple Oracle Servers
+^^^^^^^^^^^^^^^^^^^^^^^
+
+You can have as many catalogs as you need, so if you have additional
+Oracle servers, simply add another properties file to ``etc/catalog``
+with a different name (making sure it ends in ``.properties``). For
+example, if you name the property file ``sales.properties``, Presto
+will create a catalog named ``sales`` using the configured connector.
+
+Querying Oracle
+---------------
+
+The Oracle connector provides a schema for every Oracle *database*.
+You can see the available Oracle databases by running ``SHOW SCHEMAS``::
+
+    SHOW SCHEMAS FROM oracle;
+
+If you have a Oracle database named ``web``, you can view the tables
+in this database by running ``SHOW TABLES``::
+
+    SHOW TABLES FROM oracle.web;
+
+You can see a list of the columns in the ``clicks`` table in the ``web`` database
+using either of the following::
+
+    DESCRIBE oracle.web.clicks;
+    SHOW COLUMNS FROM oracle.web.clicks;
+
+Finally, you can access the ``clicks`` table in the ``web`` database::
+
+    SELECT * FROM oracle.web.clicks;
+
+If you used a different name for your catalog properties file, use
+that catalog name instead of ``oracle`` in the above examples.
+
+Oracle Connector Limitations
+----------------------------
+
+The following SQL statements are not yet supported:
+
+* :doc:`/sql/delete`
+* :doc:`/sql/grant`
+* :doc:`/sql/revoke`
+* :doc:`/sql/show-grants`
+* :doc:`/sql/show-roles`
+* :doc:`/sql/show-role-grants`

presto-oracle/pom.xml

@@ -0,0 +1,154 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>io.prestosql</groupId>
+        <artifactId>presto-root</artifactId>
+        <version>334-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>presto-oracle</artifactId>
+    <description>Presto - Oracle Connector</description>
+    <packaging>presto-plugin</packaging>
+
+    <properties>
+        <air.main.basedir>${project.parent.basedir}</air.main.basedir>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.oracle.ojdbc</groupId>
+            <artifactId>ojdbc8</artifactId>
+            <version>19.3.0.0</version>
+        </dependency>
+
+        <dependency>
+            <groupId>io.prestosql</groupId>
+            <artifactId>presto-base-jdbc</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.airlift</groupId>
+            <artifactId>configuration</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.airlift</groupId>
+            <artifactId>log</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.airlift</groupId>
+            <artifactId>log-manager</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.google.inject</groupId>
+            <artifactId>guice</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>javax.inject</groupId>
+            <artifactId>javax.inject</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.airlift</groupId>
+            <artifactId>units</artifactId>
+        </dependency>
+
+        <!-- Presto SPI -->
+        <dependency>
+            <groupId>io.prestosql</groupId>
+            <artifactId>presto-spi</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.airlift</groupId>
+            <artifactId>slice</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-annotations</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.openjdk.jol</groupId>
+            <artifactId>jol-core</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <!-- for testing -->
+        <dependency>
+            <groupId>org.testng</groupId>
+            <artifactId>testng</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.prestosql</groupId>
+            <artifactId>presto-main</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.prestosql</groupId>
+            <artifactId>presto-testing</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.prestosql.tpch</groupId>
+            <artifactId>tpch</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.prestosql</groupId>
+            <artifactId>presto-tpch</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>testcontainers</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>oracle-xe</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.airlift</groupId>
+            <artifactId>testing</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>