This documentation is a guide for using Paimon in Presto.

Version #

Paimon currently supports Presto 0.236 and above.

Preparing Paimon Jar File #

Download the jar file with corresponding version.

You can also manually build bundled jar from the source code.

To build from source code, clone the git repository.

Build bundled jar with the following command.

mvn clean install -DskipTests

You can find Presto connector jar in ./paimon-presto/paimon-presto-<presto-version>/target/paimon-presto-*.jar.

Then, copy paimon-presto-*.jar and flink-shaded-hadoop-*-uber-*.jar to plugin/paimon.

Configure Paimon Catalog #

Catalogs are registered by creating a catalog properties file in the etc/catalog directory. For example, create etc/catalog/paimon.properties with the following contents to mount the paimon connector as the paimon catalog:

connector.name=paimon
warehouse=file:/tmp/warehouse

If you are using HDFS, choose one of the following ways to configure your HDFS:

• set environment variable HADOOP_HOME.
• set environment variable HADOOP_CONF_DIR.
• configure fs.hdfs.hadoopconf in the properties.

You can configure kerberos keytag file when using KERBEROS authentication in the properties.

security.kerberos.login.principal=hadoop-user
security.kerberos.login.keytab=/etc/presto/hdfs.keytab

Query #

SELECT * FROM paimon.default.MyTable