May 21, 2026 · AI
GraphDB Benchmark (2/2) — Workload Matrix and Final Recommendations
Eight graph engines measured across OLTP, memory, analytics, and differentiation queries
#GraphDB
#PostgreSQL
#RCTE
#Neo4j
#PostgreSQL
한국어May 21, 2026 · DB
PG-Strom SSB Benchmark — Arrow FDW Comes Before GPU
Why Arrow+GPU achieves 10x at SF=100 and Heap+GPU loses to CPU on wide tables
#PG-Strom
#PostgreSQL
#GPU
#OLAP
May 21, 2026 · DB
PostgreSQL Lakehouse (2/2) — Distributed Processing and Citus Integration
Distributed processing (Ray/Daft/Smallpond) and Citus + pg_lake FDW integration
#PostgreSQL
#Lakehouse
#pg_lake
#Iceberg
May 21, 2026 · DB
PostgreSQL Lakehouse (1/2) — When DuckLake Hit a Wall, pg_lake Was There
Eight phases building a PostgreSQL-centered Lakehouse: DuckLake's libpq collision and pg_lake
#PostgreSQL
#Lakehouse
#DuckLake
#Iceberg
May 20, 2026 · AI
LightRAG Without Apache AGE — Graph Storage in Recursive CTE
Implementing LightRAG's BaseGraphStorage on plain PostgreSQL with RCTE — why a 1-hop-dominant retrieval pattern fits flat SQL
#LightRAG
#PostgreSQL
#RAG
#GraphRAG
May 20, 2026 · DB
In-DB AI, Five Systems Compared — Why Most Are Misguided
Oracle 23ai, EDB AIDB, PostgresML, Timescale pgai, pg_aidb — five systems and the abstraction-boundary discussion
#PostgreSQL
#AI
#RAG
#in-db-ai
May 20, 2026 · DB
Replacing Elasticsearch with PostgreSQL for Korean Search — An 8-Phase Study
textsearch_ko (MeCab) + pg_textsearch BM25 + pgvector HNSW + DB-side RRF matches Elasticsearch on Korean search quality and runs 2–5× faster on a single node. Eight phases of measurement, head-to-head against ES, Qdrant, and Vespa.
#PostgreSQL
#Elasticsearch
#Korean
#BM25
May 20, 2026 · AI
GraphDB Benchmark, Eight Engines (Part 1) — Decomposing the RCTE 290x Gap
On a 1.14M-edge knowledge-graph workload, PostgreSQL RCTE beats Apache AGE by 290x — tracing the cypher() wrapper's 13ms cost and PG plan generation accumulation
#GraphDB
#PostgreSQL
#RCTE
#Apache AGE
