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reckon_db

2.3.2
5.11.0 5.10.4 5.10.3 5.10.1 5.10.0 5.9.1 5.9.0 5.8.3 5.8.2 5.8.1 5.8.0 5.7.0 5.6.1 5.6.0 5.5.5 5.5.4 5.5.3 5.5.2 5.5.1 5.5.0 5.4.0 5.2.2 5.2.1 5.2.0 5.1.0 5.0.0 4.0.0 3.1.2 3.1.1 3.0.0 2.3.7 2.3.6 2.3.5 2.3.4 2.3.3 2.3.2 2.3.1 2.3.0 2.2.2 2.2.0 2.1.4 2.1.3 2.1.2 2.1.1 2.1.0 2.0.0 1.7.7 1.7.6 1.7.5 1.7.4 1.7.3 1.7.2 1.7.1 1.7.0 1.6.3 1.6.2 1.6.1 1.6.0 1.5.1 1.5.0 1.4.5 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0 1.3.3 1.3.2 1.3.1 1.3.0 1.2.7 1.2.6 1.2.5 1.2.4 1.2.3 1.2.2 1.2.1 1.2.0 1.1.1 1.1.0 1.0.3 1.0.2 1.0.1 1.0.0

BEAM-native Event Store built on Khepri/Ra with Raft consensus. Event sourcing, persistent subscriptions, snapshots, and automatic cluster formation via UDP multicast discovery. Ships embedded Rust NIFs for 3-15x acceleration of crypto, hashing, compression, aggregation, filter matching, and grap...

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reckon_db assets event_sourcing.svg
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assets/event_sourcing.svg 

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  <!-- Title -->

  <text x="400" y="35" text-anchor="middle" fill="#fff" font-family="Arial, sans-serif" font-size="22" font-weight="bold">Event Sourcing vs Traditional CRUD</text>



  <!-- CRUD Side -->

  <rect x="30" y="60" width="360" height="360" rx="10" fill="#0f3460" filter="url(#shadow2)"/>

  <text x="210" y="90" text-anchor="middle" fill="#e94560" font-family="Arial, sans-serif" font-size="16" font-weight="bold">Traditional CRUD</text>



  <!-- Database table -->

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  <text x="85" y="162" fill="#aaa" font-family="monospace" font-size="10">id</text>

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  <text x="200" y="162" fill="#aaa" font-family="monospace" font-size="10">email</text>

  <text x="300" y="162" fill="#aaa" font-family="monospace" font-size="10">balance</text>



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  <text x="85" y="187" fill="#fff" font-family="monospace" font-size="10">123</text>

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  <text x="200" y="187" fill="#fff" font-family="monospace" font-size="10">a@ex.com</text>

  <text x="300" y="187" fill="#4ade80" font-family="monospace" font-size="10">$150</text>



  <!-- Only current state -->

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  <text x="210" y="225" text-anchor="middle" fill="#e94560" font-family="Arial, sans-serif" font-size="11">Only current state is stored</text>



  <!-- Lost history -->

  <text x="210" y="280" text-anchor="middle" fill="#888" font-family="Arial, sans-serif" font-size="11">History is lost:</text>

  <text x="210" y="300" text-anchor="middle" fill="#666" font-family="Arial, sans-serif" font-size="10">• Initial balance?</text>

  <text x="210" y="318" text-anchor="middle" fill="#666" font-family="Arial, sans-serif" font-size="10">• When did it change?</text>

  <text x="210" y="336" text-anchor="middle" fill="#666" font-family="Arial, sans-serif" font-size="10">• Who made changes?</text>

  <text x="210" y="354" text-anchor="middle" fill="#666" font-family="Arial, sans-serif" font-size="10">• What were the amounts?</text>



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  <!-- Events -->

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  <text x="455" y="178" fill="#1a1a2e" font-family="monospace" font-size="8">{name: "Alice", email: "a@ex.com"}</text>



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  <text x="455" y="205" fill="#000" font-family="monospace" font-size="9" font-weight="bold">v1</text>

  <text x="485" y="205" fill="#000" font-family="monospace" font-size="9">BalanceDeposited</text>

  <text x="455" y="218" fill="#1a1a2e" font-family="monospace" font-size="8">{amount: 200, source: "direct"}</text>



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  <text x="455" y="245" fill="#000" font-family="monospace" font-size="9" font-weight="bold">v2</text>

  <text x="485" y="245" fill="#000" font-family="monospace" font-size="9">BalanceWithdrawn</text>

  <text x="455" y="258" fill="#1a1a2e" font-family="monospace" font-size="8">{amount: 50, reason: "purchase"}</text>



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  <text x="485" y="285" fill="#000" font-family="monospace" font-size="9">EmailChanged</text>

  <text x="455" y="298" fill="#1a1a2e" font-family="monospace" font-size="8">{old: "a@ex.com", new: "alice@new.com"}</text>



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  <text x="590" y="375" text-anchor="middle" fill="#fff" font-family="Arial, sans-serif" font-size="10" font-weight="bold">Current State (derived)</text>

  <text x="590" y="393" text-anchor="middle" fill="#4ade80" font-family="monospace" font-size="9">balance = 200 - 50 = $150</text>



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  <text x="590" y="426" text-anchor="middle" fill="#fff" font-family="Arial, sans-serif" font-size="16" font-weight="bold">✓</text>

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