Data●●●Banger
SirixDB 1.0 Beta – Git-Like Versioning, Diffs, Time-Travel Queries
Structural sharing below page level beats ZFS block copying and event replay.
Big BrainWizardry
lichtenberger
13616d ago
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GitHub Repository
SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.
1,210 starsJava
SirixDB – a bitemporal JSON database system with sub-page versioning
by lichtenberger·Jul 14, 2026·1 point·0 comments
AI Analysis
●●●BangerWizardryBig Brain
Query any past revision instantly without replaying logs or reconstructing state.
Strengths
- •Sub-page versioning avoids ZFS-style whole-page copy overhead.
- •Structural sharing enables git-like history with database query speeds.
- •Beta status with active development and real demo available.
Weaknesses
- •Java-centric ecosystem limits adoption in non-JVM environments.
- •Bitemporal concepts require significant mental model shift for teams.
Category
Target Audience
Backend engineers building audit-heavy or temporal applications
Similar To
Datomic · EventStoreDB · Crux
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