QueryMesh vs SPQR
QueryMesh
acadable.comSPQR
docs.pg-sharding.techSide by side
| Figure | QueryMesh | SPQR |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Linux | — | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 0 | 1 |
| Spec score · Database Proxy Software | 6.6 (#26) | 7.8 (#9) |
| Integrations | The setup section shows Docker and examples for Node.js, Django, and Rails; the page also says any language and ORM can connect through the wire protocol. | The FAQ says SPQR works with managed PostgreSQL databases including Yandex Managed PostgreSQL and AWS RDS, and names pgx and JDBC as compatible driver examples. |
| License | The product page identifies QueryMesh as MIT-licensed. | The source is distributed under the PostgreSQL Global Development Group License. |
| Product | QueryMesh is a database proxy that rewrites slow queries, caches repeated reads, and catches N+1 patterns by routing the application’s DATABASE_URL through it. | SPQR is a production-ready system for horizontally scaling PostgreSQL through sharding. |
| Support | The maker says it is onboarding teams one at a time so it can help when problems occur. | The project directs users to its Telegram chat for discussion and GitHub Issues for bug reports or feature requests. |
Plans
In their own words
SPQR
SPQR is a self-hosted query router for horizontally scaling PostgreSQL through sharding. It can extract a sharding key from a query and route it to the relevant key range and shard when possible; keys can use one column or several. Queries can also specify a key or shard in a SQL comment. Applications connect using the PostgreSQL protocol, and the router and coordinator provide administrative consoles accessible through psql. SPQR supports one-phase and two-phase commit strategies; two-phase commit provides atomicity across shards and requires max_prepared_transactions greater than zero on each shard. The system can move data between shards to balance workload, and the project describes reducing transferred ranges to limit locking impact. Its documentation includes Docker and configuration-file deployment instructions. SPQR is free and distributed under the PostgreSQL Global Development Group License. The FAQ cautions that it is not suited to complex cross-shard queries, transactions modifying multiple shards or OLAP workloads, and reports a roughly 10–30% performance drop versus vanilla PostgreSQL depending on workload.