create_distributed_table) to define distribution columns and co-location (otherwise, you're just using a single node).
I wanted to highlight that using Citus does require some additional steps (e.g. The performance difference is almost a little awkward. On Reddit, Slot acknowledges the differences: The other distributed databases tested do not rely on the definition of a distribution column. The critical and contentious difference is the usage of Citus, the open-source extension to distribute tables in PostgreSQL that requires developers to specify a distribution column, the shard key:Ī core tenet of Citus has always been that Distributed PostgreSQL is about performance at scale because PostgreSQL is good enough for everything else. They could get better performance by increasing the number of warehouses for both, without changing the number of connections. However, both CockroachDB and Yugabyte gave surprisingly low throughput. GigaOM used HammerDB TPROC-C to benchmark Azure Cosmos DB for PostgreSQL and two comparable managed service offerings (.) GigaOM initially used 1,000 warehouses for their benchmarks, which results in ~100GB of data.
#MYSQL VS POSTGRESQL JSON SUPPORT SOFTWARE#
Marco Slot, principal software engineer at Microsoft, writes: The Microsoft-sponsored benchmark has been performed using HammerDB, the open-source tool for benchmarking relational databases managed by the Transaction Performance Council (TPC). With different implementation trade-offs, the results show a higher throughput for Azure Cosmos DB but highlight the challenges of benchmarking distributed databases.Īccording to the GigaOm benchmark, Azure Cosmos DB for PostgreSQL with Citus distributed tables provides better transaction performance and price performance than CockroachDB Dedicated and Yugabyte Managed, two alternative fully managed distributed databases.Īs previously reported on InfoQ, PostgreSQL is becoming the new standard for cloud-distributed databases, with different vendors extending, reimplementing, or forking the popular open-source relational database. Microsoft recently discussed the results of distributed PostgreSQL benchmarks, comparing transaction processing and price performance for Azure Cosmos DB for PostgreSQL, CockroachDB, and Yugabyte.
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