Python function to query SQLite files stored on S3

Overview

sqlite-s3-query CircleCI Test Coverage

Python function to query a SQLite file stored on S3. It uses multiple HTTP range requests per query to avoid downloading the entire file, and so is suitable for large databases.

All the HTTP requests for a query request the same version of the database object in S3, so queries should complete succesfully even if the database is replaced concurrently by another S3 client. Versioning must be enabled on the S3 bucket.

Operations that write to the database are not supported.

Inspired by phiresky's sql.js-httpvfs, and dacort's Stack Overflow answer.

Installation

sqlite-s3-query depends on APSW, which is not available on PyPI, but can be installed directly from GitHub.

pip install sqlite_s3_query
pip install https://github.com/rogerbinns/apsw/releases/download/3.36.0-r1/apsw-3.36.0-r1.zip --global-option=fetch --global-option=--version --global-option=3.36.0 --global-option=--all --global-option=build --global-option=--enable-all-extensions

Usage

from sqlite_s3_query import sqlite_s3_query

results_iter = sqlite_s3_query(
    'SELECT * FROM my_table WHERE my_column = ?', params=('my-value',),
    url='https://my-bucket.s3.eu-west-2.amazonaws.com/my-db.sqlite',
)

for row in results_iter:
    print(row)

If in your project you use multiple queries to the same file, functools.partial can be used to make an interface with less duplication.

from functools import partial
from sqlite_s3_query import sqlite_s3_query

query_my_db = partial(sqlite_s3_query,
    url='https://my-bucket.s3.eu-west-2.amazonaws.com/my-db.sqlite',
)

for row in query_my_db('SELECT * FROM my_table WHERE my_col = ?', params=('my-value',)):
    print(row)

for row in query_my_db('SELECT * FROM my_table_2 WHERE my_col = ?', params=('my-value',)):
    print(row)

The AWS region and the credentials are taken from environment variables, but this can be changed using the get_credentials parameter. Below shows the default implementation of this that can be overriden.

import os
from functools import partial
from sqlite_s3_query import sqlite_s3_query

query_my_db = partial(sqlite_s3_query
    url='https://my-bucket.s3.eu-west-2.amazonaws.com/my-db.sqlite',
    get_credentials=lambda: (
        os.environ['AWS_DEFAULT_REGION'],
        os.environ['AWS_ACCESS_KEY_ID'],
        os.environ['AWS_SECRET_ACCESS_KEY'],
        os.environ.get('AWS_SESSION_TOKEN'),  # Only needed for temporary credentials
    ),
)

for row in query_my_db('SELECT * FROM my_table_2 WHERE my_col = ?', params=('my-value',)):
    print(row)
Owner
Michal Charemza
Michal Charemza
This repo contains the backend of the KMK project

KMK Backend This repository contains the backend part of the KMK project Demo Watch it on Youtube Getting started Pre-commit hooks After you cloned th

21 Nov 26, 2022
PathfinderMonsterDatabase - A database of all monsters in Pathfinder 1e, created by parsing aonprd.com

PathfinderMonsterDatabase A database of all monsters in Pathfinder 1e, created by parsing aonprd.com Setup Run the following line to install all requi

Yoni Lerner 11 Jun 12, 2022
Shelf DB is a tiny document database for Python to stores documents or JSON-like data

Shelf DB Introduction Shelf DB is a tiny document database for Python to stores documents or JSON-like data. Get it $ pip install shelfdb shelfquery S

Um Nontasuwan 35 Nov 03, 2022
pickleDB is an open source key-value store using Python's json module.

pickleDB pickleDB is lightweight, fast, and simple database based on the json module. And it's BSD licensed! pickleDB is Fun import pickledb

Harrison Erd 738 Jan 04, 2023
Manage your sqlite database very easy (like django) ...

Manage your sqlite database very easy (like django) ...

aWolver 1 Feb 09, 2022
A very simple document database

DockieDb A simple in-memory document database. Installation Build the Wheel Fork or clone this repository and run python setup.py bdist_wheel in the r

1 Jan 16, 2022
Youtube Kanalinda tanittigim ve Programladigim SQLite3 ile calisan Kütüphane Programi

SQLite3 Kütüphane Uygulamasi SQLite3 ile calisan Kütüphane Arayüzü Yükleme Yerel veritabani olusacaktir. Yaptiginiz islemler kaybolmaz! Temel Gereksin

Mikael Pikulski 6 Aug 13, 2022
Simple embedded in memory json database

dbj dbj is a simple embedded in memory json database. It is easy to use, fast and has a simple query language. The code is fully documented, tested an

Pedro Gonring 25 Aug 12, 2022
AWS Tags As A Database is a Python library using AWS Tags as a Key-Value database.

AWS Tags As A Database is a Python library using AWS Tags as a Key-Value database. This database is completely free* 💸

Oren Leung 42 Nov 25, 2022
LaikaDB, banco de dados para projetos simples.

LaikaDB LaikaDB é um banco de dados noSQL para uso local e simples, onde você pode realizar gravações e leituras de forma eficiente e simples. Todos o

Jaedson Silva 0 Jun 24, 2022
Decentralised graph database management system

Decentralised graph database management system To get started clone the repo, and run the command below. python3 database.py Now, create a new termina

Omkar Patil 2 Apr 18, 2022
Лабораторные работы по Postgresql за 5 семестр

Практикум по Postgresql ERD для заданий 2.x: ERD для заданий 3.x: Их делал вот тут Ниже есть 2 инструкции — по установке postgresql на manjaro и по пе

Danila 10 Oct 31, 2022
A Persistent Embedded Graph Database for Python

Cog - Embedded Graph Database for Python cogdb.io New release: 2.0.5! Installing Cog pip install cogdb Cog is a persistent embedded graph database im

Arun Mahendra 214 Dec 30, 2022
Tools for analyzing Git history using SQLite

git-history Tools for analyzing Git history using SQLite Installation Install this tool using pip: $ pip install git-history Usage This tool can be r

Simon Willison 128 Jan 02, 2023
ClutterDB - Extremely simple JSON database made for infrequent changes which behaves like a dict

extremely simple JSON database made for infrequent changes which behaves like a dict this was made for ClutterBot

Clutter Development 1 Jan 12, 2022
Python object-oriented database

ZODB, a Python object-oriented database ZODB provides an object-oriented database for Python that provides a high-degree of transparency. ZODB runs on

Zope 574 Dec 31, 2022
Metrics-advisor - Analyze reshaped metrics from TiDB cluster Prometheus and give some advice about anomalies and correlation.

metrics-advisor Analyze reshaped metrics from TiDB cluster Prometheus and give some advice about anomalies and correlation. Team freedeaths mashenjun

3 Jan 07, 2022
A NoSQL database made in python.

CookieDB A NoSQL database made in python.

cookie 1 Nov 30, 2022
A super easy, but really really bad DBMS

Dumb DB Are you looking for a reliable database management system? Then you've come to the wrong place. This is a very small database management syste

Elias Amha 5 Dec 28, 2022
Postgres full text search options (tsearch, trigram) examples

postgres-full-text-search Postgres full text search options (tsearch, trigram) examples. Create DB CREATE DATABASE ftdb; To feed db with an example

Jarosław Orzeł 97 Dec 30, 2022