feat: add ai_to_sql transalte natual lanauge to SQL based on your table schema

[BohuTANG]

I hereby agree to the terms of the CLA available at: https://databend.rs/dev/policies/cla/

Summary

CREATE DATABASE openai;
USE openai;

CREATE TABLE users(
    id INT,
    name VARCHAR,
    age INT
);

SELECT * FROM ai_to_sql('List all users older than 30 years', '<openai-api-key>');

Output:

*************************** 1. row ***************************
     database: simple_example
generated_sql:  SELECT * FROM users WHERE age > 30;

Closes #issue

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1 Ignored Deployment

Name	Status	Preview	Comments	Updated
databend	⬜️ Ignored (Inspect)	Visit Preview		Mar 18, 2023 at 4:07PM (UTC)

[Xuanwo]

CI failed becuase async-openai doesn't has rustls support, please use the fork I created: 64bit/async-openai#60

[l1t1]

I tried the function in v1.0.23

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.26-v1.0.23-nightly-0e06b47048d90e53126f785e6db12c67cb592d46(rust-1.70.0-nightly-2023-03-18T16:36:53.222545484Z) 0

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MySQL [(none)]> CREATE DATABASE openai;
Query OK, 0 rows affected (0.079 sec)

MySQL [(none)]> USE openai;
Database changed
MySQL [openai]>
MySQL [openai]> CREATE TABLE users(
    ->     id INT,
    ->     name VARCHAR,
    ->     age INT
    -> );
Query OK, 0 rows affected (0.224 sec)

MySQL [openai]>
MySQL [openai]> SELECT * FROM ai_to_sql('List all users older than 30 years', '<openai-api-key>');
ERROR 1105 (HY000): Code: 1001, displayText = openai http error: reqwest::Error { kind: Builder, source: Custom { kind: NotFound, error: "error reading DNS system conf: No such file or directory (os error 2)" } }.
MySQL [openai]>

[BohuTANG]

@l1t1 Make your network can access openai

[l1t1]

database usually behind the firewall