# Overview
`pgschemapc` is a prototype implementation of [PGSchema](https://arxiv.org/abs/2211.10962) with an extension that supports property constraints.
More information:
- [github repo](https://github.com/weso/pgschemapc/)
- [Binary releases](https://github.com/weso/pgschemapc/releases)
- [Zenodo link](https://doi.org/10.5281/zenodo.16738598)
- [Online grammar checker](https://damianw27.github.io/gql/): Contains an online checker for GQL and PGSchema.