Kinetica SqlAssist LLM Demo

This notebook demonstrates how to use Kinetica to transform natural language into SQL and simplify the process of data retrieval. This demo is intended to show the mechanics of creating and using a chain as opposed to the capabilities of the LLM.

Overview

With the Kinetica LLM workflow you create an LLM context in the database that provides information needed for infefencing that includes tables, annotations, rules, and samples. Invoking ChatKinetica.load_messages_from_context() will retrieve the context information from the database so that it can be used to create a chat prompt.

The chat prompt consists of a SystemMessage and pairs of HumanMessage/AIMessage that contain the samples which are question/SQL pairs. You can append pairs samples to this list but it is not intended to facilitate a typical natural language conversation.

When you create a chain from the chat prompt and execute it, the Kinetica LLM will generate SQL from the input. Optionally you can use KineticaSqlOutputParser to execute the SQL and return the result as a dataframe.

Currently, 2 LLM’s are supported for SQL generation:

1. Kinetica SQL-GPT: This LLM is based on OpenAI ChatGPT API.
2. Kinetica SqlAssist: This LLM is purpose built to integrate with the Kinetica database and it can run in a secure customer premise.

For this demo we will be using SqlAssist. See the Kinetica Documentation site for more information.

Prerequisites

To get started you will need a Kinetica DB instance. If you don’t have one you can obtain a free development instance.

You will need to install the following packages…

# Install Langchain community and core packages
%pip install --upgrade --quiet langchain-core langchain-community

# Install Kineitca DB connection package
%pip install --upgrade --quiet gpudb typeguard

# Install packages needed for this tutorial
%pip install --upgrade --quiet faker

Note: you may need to restart the kernel to use updated packages.
Note: you may need to restart the kernel to use updated packages.

Database Connection

You must set the database connection in the following environment variables. If you are using a virtual environment you can set them in the .env file of the project: * KINETICA_URL: Database connection URL * KINETICA_USER: Database user * KINETICA_PASSWD: Secure password.

If you can create an instance of KineticaChatLLM then you are successfully connected.

from langchain_community.chat_models.kinetica import ChatKinetica

kinetica_llm = ChatKinetica()

# Test table we will create
table_name = "demo.user_profiles"

# LLM Context we will create
kinetica_ctx = "demo.test_llm_ctx"

API Reference:

• ChatKinetica

Create test data

Before we can generate SQL we will need to create a Kinetica table and an LLM context that can inference the table.

Create some fake user profiles

We will use the faker package to create a dataframe with 100 fake profiles.

from typing import Generator

import pandas as pd
from faker import Faker

Faker.seed(5467)
faker = Faker(locale="en-US")


def profile_gen(count: int) -> Generator:
    for id in range(0, count):
        rec = dict(id=id, **faker.simple_profile())
        rec["birthdate"] = pd.Timestamp(rec["birthdate"])
        yield rec


load_df = pd.DataFrame.from_records(data=profile_gen(100), index="id")
load_df.head()

	username	name	sex	address	mail	birthdate
id
0	eduardo69	Haley Beck	F	59836 Carla Causeway Suite 939\nPort Eugene, I...	meltondenise@yahoo.com	1997-09-09
1	lbarrera	Joshua Stephens	M	3108 Christina Forges\nPort Timothychester, KY...	erica80@hotmail.com	1924-05-05
2	bburton	Paula Kaiser	F	Unit 7405 Box 3052\nDPO AE 09858	timothypotts@gmail.com	1933-09-06
3	melissa49	Wendy Reese	F	6408 Christopher Hill Apt. 459\nNew Benjamin, ...	dadams@gmail.com	1988-07-28
4	melissacarter	Manuel Rios	M	2241 Bell Gardens Suite 723\nScottside, CA 38463	williamayala@gmail.com	1930-12-19

Create a Kinetica table from the Dataframe

from gpudb import GPUdbTable

gpudb_table = GPUdbTable.from_df(
    load_df,
    db=kinetica_llm.kdbc,
    table_name=table_name,
    clear_table=True,
    load_data=True,
)

# See the Kinetica column types
gpudb_table.type_as_df()

	name	type	properties
0	username	string	[char32]
1	name	string	[char32]
2	sex	string	[char1]
3	address	string	[char64]
4	mail	string	[char32]
5	birthdate	long	[timestamp]

Create the LLM context

You can create an LLM Context using the Kinetica Workbench UI or you can manually create it with the CREATE OR REPLACE CONTEXT syntax.

Here we create a context from the SQL syntax referencing the table we created.

# create an LLM context for the table.

from gpudb import GPUdbException

sql = f"""
CREATE OR REPLACE CONTEXT {kinetica_ctx}
(
    TABLE = demo.test_profiles
    COMMENT = 'Contains user profiles.'
),
(
    SAMPLES = (
    'How many male users are there?' = 
    'select count(1) as num_users
    from demo.test_profiles
    where sex = ''M'';')
)
"""


def _check_error(response: dict) -> None:
    status = response["status_info"]["status"]
    if status != "OK":
        message = response["status_info"]["message"]
        raise GPUdbException("[%s]: %s" % (status, message))


response = kinetica_llm.kdbc.execute_sql(sql)
_check_error(response)
response["status_info"]

{'status': 'OK',
 'message': '',
 'data_type': 'execute_sql_response',
 'response_time': 0.0148}

Use Langchain for inferencing

In the example below we will create a chain from the previously created table and LLM context. This chain will generate SQL and return the resulting data as a dataframe.

Load the chat prompt from the Kinetica DB

The load_messages_from_context() function will retrieve a context from the DB and convert it into a list of chat messages that we use to create a ChatPromptTemplate.

from langchain_core.prompts import ChatPromptTemplate

# load the context from the database
ctx_messages = kinetica_llm.load_messages_from_context(kinetica_ctx)

# Add the input prompt. This is where input question will be substituted.
ctx_messages.append(("human", "{input}"))

# Create the prompt template.
prompt_template = ChatPromptTemplate.from_messages(ctx_messages)
prompt_template.pretty_print()

API Reference:

• ChatPromptTemplate

================================ System Message ================================

CREATE TABLE demo.test_profiles AS
(
   username VARCHAR (32) NOT NULL,
   name VARCHAR (32) NOT NULL,
   sex VARCHAR (1) NOT NULL,
   address VARCHAR (64) NOT NULL,
   mail VARCHAR (32) NOT NULL,
   birthdate TIMESTAMP NOT NULL
);
COMMENT ON TABLE demo.test_profiles IS 'Contains user profiles.';

================================ Human Message =================================

How many male users are there?

================================== Ai Message ==================================

select count(1) as num_users
    from demo.test_profiles
    where sex = 'M';

================================ Human Message =================================

{input}

Create the chain

The last element of this chain is KineticaSqlOutputParser that will execute the SQL and return a dataframe. This is optional and if we left it out then only SQL would be returned.

from langchain_community.chat_models.kinetica import (
    KineticaSqlOutputParser,
    KineticaSqlResponse,
)

chain = prompt_template | kinetica_llm | KineticaSqlOutputParser(kdbc=kinetica_llm.kdbc)

API Reference:

• KineticaSqlOutputParser
• KineticaSqlResponse

Generate the SQL

The chain we created will take a question as input and return a KineticaSqlResponse containing the generated SQL and data. The question must be relevant to the to LLM context we used to create the prompt.

# Here you must ask a question relevant to the LLM context provided in the prompt template.
response: KineticaSqlResponse = chain.invoke(
    {"input": "What are the female users ordered by username?"}
)

print(f"SQL: {response.sql}")
response.dataframe.head()

SQL: SELECT username, name
    FROM demo.test_profiles
    WHERE sex = 'F'
    ORDER BY username;

	username	name
0	alexander40	Tina Ramirez
1	bburton	Paula Kaiser
2	brian12	Stefanie Williams
3	brownanna	Jennifer Rowe
4	carl19	Amanda Potts