flyrain commented on code in PR #1470: URL: https://github.com/apache/polaris/pull/1470#discussion_r2072189512
########## getting-started/jdbc/README.md: ########## @@ -0,0 +1,92 @@ +<!-- + 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. +--> + +# Getting Started with Apache Polaris, Relational JDBC, Postgres and Spark SQL + +This example requires `jq` to be installed on your machine. + +1. If such an image is not already present, build the Polaris image with support for JDBC persistence and + the Postgres JDBC driver: + + ```shell + ./gradlew \ + :polaris-quarkus-server:assemble \ + :polaris-quarkus-server:quarkusAppPartsBuild --rerun \ + :polaris-quarkus-admin:assemble \ + :polaris-quarkus-admin:quarkusAppPartsBuild --rerun \ + -Dquarkus.container-image.tag=postgres-latest \ + -Dquarkus.container-image.build=true + ``` + +2. Start the docker compose group by running the following command from the root of the repository: + + ```shell + docker compose -f getting-started/jdbc/docker-compose-bootstrap-db.yml -f getting-started/assets/postgres/docker-compose-postgres.yml -f getting-started/jdbc/docker-compose.yml up + ``` + +3. Using spark-sql: attach to the running spark-sql container: + + ```shell + docker attach $(docker ps -q --filter name=spark-sql) + ``` + + You may not see Spark's prompt immediately, type ENTER to see it. A few commands that you can try: + + ```sql + CREATE NAMESPACE polaris.ns1; + USE polaris.ns1; + CREATE TABLE table1 (id int, name string); + INSERT INTO table1 VALUES (1, 'a'); + SELECT * FROM table1; + ``` + +4. To access Polaris from the host machine, first request an access token: + + ```shell + export POLARIS_TOKEN=$(curl -s http://polaris:8181/api/catalog/v1/oauth/tokens \ + --resolve polaris:8181:127.0.0.1 \ + --user root:s3cr3t \ + -d 'grant_type=client_credentials' \ + -d 'scope=PRINCIPAL_ROLE:ALL' | jq -r .access_token) + ``` + +5. Then, use the access token in the Authorization header when accessing Polaris: + + ```shell + curl -v http://127.0.0.1:8181/api/management/v1/principal-roles -H "Authorization: Bearer $POLARIS_TOKEN" + curl -v http://127.0.0.1:8181/api/management/v1/catalogs/quickstart_catalog -H "Authorization: Bearer $POLARIS_TOKEN" + ``` + +6. Using Trino CLI: To access the Trino CLI, run this command: +```shell +docker exec -it jdbc-trino-1 trino +``` +Note, `jdbc-trino-1` is the name of the Docker container. + +Example Trino queries: +``` Review Comment: Nit: -> ```sql -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
