Text-to-SQL (tech preview): terms of use

1. Tech preview. The Text-to-SQL service is a technology preview for internal test use only. It is not supported
   for production use. Its settings, interfaces and behaviour may change or be removed between builds without notice.

2. Generated SQL. The service writes SQL from questions in natural language. The SQL can be wrong even when it runs
   and returns rows. Review every generated query before you rely on its result.

3. Data. The service reads the schema of the cluster and, with the value hints mode 'full', samples of column
   values. Questions, generated SQL and these samples are processed by the model on the model server host of this
   cluster and are kept in the audit log on the engine host. The service does not send them outside the cluster.

4. Model. The model is a fine-tuned version of a base model released under the Apache License, Version 2.0.
   The terms for the fine-tuned weights are pending a legal review. Until it is complete, use the model for
   internal tests only and do not redistribute it.
