https://github.com/siilike/postgresql-vpack
VelocyPack support for PostgreSQL
https://github.com/siilike/postgresql-vpack
bson jsonb mongodb postgresql postgresql-extension postgresql-vpack velocypack
Last synced: 7 months ago
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VelocyPack support for PostgreSQL
- Host: GitHub
- URL: https://github.com/siilike/postgresql-vpack
- Owner: siilike
- Created: 2020-02-15T10:31:19.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2020-02-15T10:38:09.000Z (over 5 years ago)
- Last Synced: 2025-03-01T12:59:52.750Z (7 months ago)
- Topics: bson, jsonb, mongodb, postgresql, postgresql-extension, postgresql-vpack, velocypack
- Language: C++
- Size: 107 KB
- Stars: 2
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# PostgreSQL VelocyPack extension
This extension adds the [velocypack](https://github.com/arangodb/velocypack) format support to PostgreSQL. Generally it is a `jsonb` analogue with more data types and support for logical types or tags.
It supports most `jsonb_*` functions as `vpack_*`, `jsonpath` analogue `vpackpath` and conversion from the `json`, `jsonb` and `BSON` formats.
Some bits and pieces haven't been implemented yet.
## Advantages
* more data types than JSON
* same format for data processing, transport and storage
* logical types or tagging: for more precise type or object document mapping
## Performance
* 16 parallel clients, 10^6 records, 5 minutes
* left axis: average requests per second
* top left: inserts -- VPack is a bit faster, because it did not perform input validation
* top right: selects by primary key -- VPack is faster due to lack of conversion to text
* bottom left: a simple aggregate operation
* bottom right: transactions
## TODO
* finish tests
* add tags and full type support to `vpackpath`
* specify and implement conversions and tag IDs for all PostgreSQL types
* implement missing `vpack_*` functions like `vpack_populate_record`, `vpack_to_recordset`, etc
* [31f403e95fdf88338d3fc9c6af80fcf6d8241044](https://github.com/postgres/postgres/commit/31f403e95fdf88338d3fc9c6af80fcf6d8241044)
* [a83586b5543b948f9e621462537a7303b113c482](https://github.com/postgres/postgres/commit/a83586b5543b948f9e621462537a7303b113c482)
* [e56cad84d542a8cc2056390a9c651118cfa6c89c](https://github.com/postgres/postgres/commit/e56cad84d542a8cc2056390a9c651118cfa6c89c)
* [1cff1b95ab6ddae32faa3efe0d95a820dbfdc164](https://github.com/postgres/postgres/commit/1cff1b95ab6ddae32faa3efe0d95a820dbfdc164)
* [52ad1e659967896ed153185328ffe806d69abcb6](https://github.com/postgres/postgres/commit/52ad1e659967896ed153185328ffe806d69abcb6)
* [7881bb14f4b23e8dc8671938cfb3f34117c12d8b](https://github.com/postgres/postgres/commit/7881bb14f4b23e8dc8671938cfb3f34117c12d8b)
* [bffe1bd68457e43925c362d8728ce3b25bdf1c94](https://github.com/postgres/postgres/commit/bffe1bd68457e43925c362d8728ce3b25bdf1c94)
* [6dda292d4df82a9158d1acc93feecf3b84637b59](https://github.com/postgres/postgres/commit/6dda292d4df82a9158d1acc93feecf3b84637b59)
* [0a02e2ae0236103e641f6570b8135b7ee8a83686](https://github.com/postgres/postgres/commit/0a02e2ae0236103e641f6570b8135b7ee8a83686)
## Building
Install `bison`, `flex`, `cmake`, `gcc`.
```
git submodule update --recursive
(
mkdir build-mongo
cd build-mongo
cmake -DCMAKE_C_FLAGS="-fPIC" ../mongo-c-driver/
make -j 12
)
(
mkdir build
cd build
cmake ..
make -j 12
make install
)
```
Then run `CREATE EXTENSION vpack;`. See `vpack--0.1.sql` for available functions, operators and casts.