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https://github.com/bedquiltdb/bedquilt-core

A JSON document store on PostgreSQL
https://github.com/bedquiltdb/bedquilt-core

database nosql plpgsql sql

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A JSON document store on PostgreSQL

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README 

        
# Bedquilt



[![Join the chat at https://gitter.im/BedquiltDB/bedquilt-core](https://badges.gitter.im/BedquiltDB/bedquilt-core.svg)](https://gitter.im/BedquiltDB/bedquilt-core?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)



![Bedquilt](./resources/bedquilt_logo_tile.png)



[BedquiltDB](https://bedquiltdb.github.io) is a A JSON document-store built on PostgreSQL.



[![CircleCI](https://circleci.com/gh/BedquiltDB/bedquilt-core/tree/master.svg?style=shield)](https://circleci.com/gh/BedquiltDB/bedquilt-core/tree/master)



# Releases



Release packages for BedquiltDB can be found on [pgxn](http://pgxn.org/dist/bedquilt/).



# Goals



- Borrow some of the good ideas and positive attributes of json

  object-stores and bring them to PostgreSQL

- Harness the new jsonb functionality of PostgreSQL and wrap it in a nice

programmatic API that is consistent across languages

- Make use of SQL strong-points, such as schema constraints and table joins

- Build a tool which is actually useful for developers



# Documentation



Project documnetation hosted at [Read The Docs](http://bedquiltdb.readthedocs.org).



To build documentation, install the `mkdocs` utility and run:

```

$ make docs

```



# Examples



This extension provides the core functionality of BedquiltDB, and can be used from ordinary SQL queries,

though it is recommended to use one of the driver libraries for you favourite programming language instead.



```PLpgSQL

-- Insert two documents into the 'people' collection.

select bq_insert(

    'people',

    '{"_id": "[email protected]",

      "name": "Sarah",

      "likes": ["icecream", "code"]}'

);

select bq_insert(

    'people',

    '{"name": "Mike",

      "likes": ["code", "rabbits"]}'

);



-- Find a single document,

-- where the "name" field is the string value "Mike".

select bq_find_one(

    'people',

    '{"name":  "Mike"}'

);



-- Find all documents in the 'people' collection

select bq_find('people', '{}');



-- Find all people who like icecream

select bq_find('people', '{"likes": ["icecream"]}');



-- Find a single document by its "_id" field.

-- This query hits the primary key index on the _id field

select bq_find_one_by_id('people', '[email protected]');



-- Create an empty collection

select bq_create_collection('things');



-- Get a list of existing collections

select bq_list_collections();

```



# Drivers



BedquiltDB is intended to be used with client libraries (aka Drivers), such as:



- [pybedquilt](https://github.com/BedquiltDB/pybedquilt) for Python

- [node-bedquilt](https://github.com/BedquiltDB/node-bedquilt) for NodeJS

- [clj-bedquilt](https://github.com/BedquiltDB/clj-bedquilt) for Clojure



Installation instructions and documentation for each driver can be found on the

respective driver repositories.



BedquiltDB can also be used directly through SQL queries: `select bq_find('users', '{...}')`.



# Prerequisites



- PostgreSQL >= 9.5

- PL/pgSQL

- PL/Python3u

- The pgcrypto extension



## Development prerequisites



- python >=2.7

- psycopg2 python library (`pip install pyscopg2`)

- a local installation of PostgreSQL, with pgxs

- mkdocs, for building documentation

- gnu make



# Installation



## From a pre-built package (recommended)



To install BedquiltDB on your PostgreSQL server, follow the instructions here:



http://bedquiltdb.readthedocs.org/en/latest/guide/installation/



## From source



If you would prefer to install from source, first clone this repositroy:



```

$ git clone https://github.com/BedquiltDB/bedquilt-core.git

$ cd bedquilt-core

```



Run the following to build the extension and install it to the local database:



```

$ sudo make install

```



Run this to build to a zip file:



```

$ make dist

```



Then, on the postgres server:



```PLpgSQL

CREATE EXTENSION IF NOT EXISTS pgcrypto;

CREATE EXTENSION IF NOT EXISTS plpython3u;

CREATE EXTENSION bedquilt;

```



Test out the bedquilt extension by running a simple `find` operation:



```PlpgSQL

select bq_find('stuff', '{}');

```



# Tests



Run `make test` to run the test suite. Requires a `bedquilt_test` database

that the current user owns.



# Contributing



Contributions are welcome, to any of the BedquiltDB projects. Just open an issue,

or get in touch directly.



# License



Bedquilt is released under the [MIT License](./LICENSE.txt).