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State 004 Learning Guide

Position In Learning Graph​

Convergence Metadata​

  • Convergence state: no
  • Convergence level: none
  • Lineage role: canonical
  • Nearest previous convergence: none
  • Nearest next convergence: none

Rendered Code​

Code Comparison With Previous State​

Plain-English Code Delta​

  • Added: PostgreSQL runtime initialization pack (postgres-init/initialSchema.sql) for deterministic baseline schema and seed data.
  • Added: Postgres-specific smoke checks (readiness + baseline data presence).
  • Changed: Runtime database engine changes from H2 server process to PostgreSQL container.
  • Changed: Service datasource wiring for:
  • Changed: account-service
  • Changed: position-service
  • Changed: trade-processor
  • Changed: Account sequence ID generation query changes to PostgreSQL sequence syntax.

Run This State​

./scripts/start-state-004-postgres-database-replacement-generated.sh