Add Teradata connector

[sc250072]

Description

This PR introduces the Teradata connector, enabling Trino to query and interact with Teradata data sources.

Key additions:

Implements the Teradata connector SPI with support for:
• Connection setup
• Schema retrieval
• Data type mapping

Adds integration tests against a Teradata ClearScape Analytics™ Experience instance to verify connection, query execution, and result mapping.
Updates documentation under connectors to include usage examples and configuration options.
This connector extends Trino’s ecosystem to support Teradata users, allowing them to leverage Trino’s distributed query engine for federated queries.

Additional context and related issues

The Teradata connector module has both unit tests and integration tests.
The integration tests require access to a Teradata ClearScape Analytics™ Experience.
You can follow the steps below to run the integration tests locally.

A new PR has been created for the Teradata connector to replace PR #26574
, with a reduced scope based on the recommendation in this review comment
. Additional review comments from the earlier PR have also been addressed.

Prerequisites

1. Create a new ClearScape Analytics™ Experience account

   If you don't already have one, sign up at:

   Teradata ClearScape Analytics™ Experience

2. Login

   Sign in with your new account at:

   ClearScape Analytics™ Experience Login

3. Collect the API Token

   Use the Copy API Token button in the UI to retrieve your token.

4. Define the following environment variables

   ⚠️ Note: The Teradata database password must be at least 8 characters long.

   export CLEARSCAPE_TOKEN=<API Token>
   export CLEARSCAPE_PASSWORD=<Password for Teradata database (min 8 chars)>
   export CLEARSCAPE_REGION=us-central;
   

Running Integration Tests

Once the environment variables are set, run the integration tests with:

⚠️ Note: Run the following command from the Trino parent directory.

./mvnw clean install -pl :trino-teradata

Release notes

( ) This is not user-visible or is docs only, and no release notes are required.
(x ) Release notes are required. Please propose a release note for me.
( ) Release notes are required, with the following suggested text:

## Connectors
* Add Teradata connector. ({issue}`<issue-number-if-any>`)

[findepi]

The Teradata connector module has both unit tests and integration tests.
The integration tests require access to a Teradata ClearScape Analytics™ Experience.

How will these tests be run on Trino CI?

[sc250072]

The Teradata connector module has both unit tests and integration tests.
The integration tests require access to a Teradata ClearScape Analytics™ Experience.

How will these tests be run on Trino CI?

Thank you @findepi for your review. We need Trino team help to configure required environment variables to run Teradata connector integration tests and need to update Trino CI to include Teradata integration tests

[mosabua]

Docs look good now .. beyond that I leave it to @ebyhr @electrum and others.

[sc250072]

Docs look good now .. beyond that I leave it to @ebyhr @electrum and others.

Thank you @mosabua. I have resolved all your comments.

[github-actions]

This pull request has gone a while without any activity. Ask for help on #core-dev on Trino slack.

[crispkid]

I’ve rebuilt the Trino Teradata Connector for version 479.
https://github.com/crispkid/trino-teradata

[mosabua]

I had another look at the docs. Looks good now.

[github-actions]

This pull request has gone a while without any activity. Ask for help on #core-dev on Trino slack.

[github-actions]

This pull request has gone a while without any activity. Ask for help on #core-dev on Trino slack.