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Proven stability and reliability in core scenarios like finance, government, and energy
openHalo is an open-source database project initiated by E-View Technology, aiming to fill the international gap in deep compatibility with MySQL at the protocol level. As a demonstration of China's database technology strength, we are committed to building a high-performance, highly reliable and fully community-driven open-source ecosystem.
As a graduate teaching practice project, it has entered the graduate teaching curriculum of Peking University. Students are encouraged to contribute code to the project, and contributors are motivated through thanks, contributor lists, badges, etc.
Explore cutting-edge database technologies, share best practices and architectural thinking
We recently conducted a comprehensive security audit of the Xihe (Halo) database and fixed two important security vulnerabilities: privilege escalation vulnerability (CVE-2025-1094) and permission checking mechanism vulnerability (CVE-2024-10976).
Includes fixes for pg_stats_ext view missing authentication vulnerability (CVE-2024-4317) and privilege escalation vulnerability through REFRESH MATERIALIZED VIEW CONCURRENTLY (CVE-2024-0985).
Includes fixes for pg_signal_backend role privilege vulnerability, integer overflow, and aggregate function data leakage vulnerability.
Learn about Halo Tech's latest progress, product releases, and industry events
Technology has a starting point, but innovation has no end. We believe we will surpass all companies in the world.
# HaloDB Performance Configuration
shared_buffers = '32GB'
work_mem = '64MB'
max_connections = 5000
# Adaptive Indexing AI
halodb.auto_index = on
halodb.ai_optimizer = true
# High Availability
wal_level = 'logical'
archive_mode = onCreate good software for the digital economy era and change the world together! Software has value only when it is used.