Case Study: KT Corporation achieves rapid 30,000-order iPhone pre-sales processing and 90% database cost savings with EnterpriseDB Postgres Plus Advanced Server

KT Processes iPhone Orders Faster with PostgreSQL and EnterpriseDB

KT Corporation, South Korea’s largest telecom and broadband provider, needed a high‑capacity pre‑order system in 2012 to handle anticipated demand for flagship smartphones like the Galaxy S III and iPhone 5. Facing the challenge of replacing costly proprietary databases and shifting cloud infrastructure from RISC Unix to x86 Linux, KT sought a scalable, enterprise‑grade open source database for a mission‑critical rollout.

KT implemented EnterpriseDB’s Postgres Plus Advanced Server (PostgreSQL with Oracle compatibility) on x86 Linux, combining open source infrastructure with EnterpriseDB enhancements. The new system processed over 30,000 orders within the first 60 seconds of iPhone 5 pre‑sales, cut database costs by more than 90% versus alternatives, and convinced KT to migrate additional workloads to Postgres Plus for enterprise use.

KT Corporation

Jungsook Jaegal

General Manager, IT Architecture