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Intro
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Classroom Contents
Real-World Datomic - An Experience Report
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- 1 Intro
- 2 The Problem • Provide a summary of sales funnel events for Room Key • Users move through the website impression - hotel details - lead - booking . Want per-day event counts by hotel & event type
- 3 Datomic's Architecture
- 4 Datomic's Data Model
- 5 Capturing Events - Schema Type Qualifiers
- 6 Capturing Events - Example
- 7 Capturing Events - Refs
- 8 Storing and Retrieving Data in Datomic • One or more EAV tuples submitted to the transactor All are given the same value . Datoms written transactionally to the log . All datoms also stored redundant…
- 9 EAVT and AEVT
- 10 Capturing Events - EAVT
- 11 AVET and VAET
- 12 Index Storage and Retrieval . Datoms are stored in compressed chunks called segments • Segments are stored as a tree • Segments are immutable once written • Each transaction conceptually creates a ne…
- 13 Indexing - Append
- 14 Anatomy of an Entity ID
- 15 A Change In Approach
- 16 The Code
