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Tech riderRev. 20 Sept 2026

SPQR

Ch 285.4of 30 Database Proxy Software
  1. 1Runs onself-hosted
  2. 2CostsNot stated by the maker
  3. 3Deployment modelself-hosted
  4. 4Connection poolingYes
  5. 5Query routingYes
  6. 6Supported databasesPostgreSQL
5 lines stated Written from the maker's own pages: docs.pg-sharding.tech
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The SPQR homepage

Overview

SPQR is ranked #28 of 30 in database proxy software on Specifiction. It runs on Self-hosted.

Compared on database proxy software

Deployment model
self-hosteddocs.pg-sharding.tech
Connection pooling
Yesdocs.pg-sharding.tech
Query routing
Yesdocs.pg-sharding.tech
Supported databases
PostgreSQLdocs.pg-sharding.tech

Facts

Product
SPQR is a production-ready system for horizontally scaling PostgreSQL through sharding.docs.pg-sharding.tech · 5 Oct 2026
License
SPQR is distributed under the PostgreSQL Global Development Group License.docs.pg-sharding.tech · 5 Oct 2026
Automatic routing
The router extracts a sharding key from a query and uses it to select the key range and shard when possible.docs.pg-sharding.tech · 5 Oct 2026
Sharding keys
SPQR supports single-column and composite multi-column sharding keys.docs.pg-sharding.tech · 5 Oct 2026
Routing controls
Queries can specify a sharding key or explicitly select a shard in a SQL comment.docs.pg-sharding.tech · 5 Oct 2026
Intended users
SPQR is presented as a fit for PostgreSQL developers who want to avoid application-level sharding logic and workloads suited to single-shard OLTP queries.docs.pg-sharding.tech · 5 Oct 2026
Managed PostgreSQL
The product site says SPQR can use managed PostgreSQL services including AWS RDS, Google Cloud SQL, and Azure Database for its shards.pg-sharding.tech · 5 Oct 2026
Scale
The product site says SPQR has handled terabytes of data and 100K+ queries per second.pg-sharding.tech · 5 Oct 2026
Data balancing
SPQR migrates data between shards to balance workload and describes reducing the size of transferred ranges to minimize locking impact.docs.pg-sharding.tech · 5 Oct 2026
Deployment
The documentation provides a Docker image and instructions for running the router with a configuration file.docs.pg-sharding.tech · 5 Oct 2026
Support
The project GitHub page directs users to a Telegram chat for discussion and GitHub Issues for bugs or feature requests.github.com · 5 Oct 2026
Maker
The documentation says SPQR was designed by the Data Platform team of Yandex.Cloud.docs.pg-sharding.tech · 5 Oct 2026

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Where it ranks on Specifiction

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Sources