ci: Apply PostgreSQL performance optimizations to GitHub Actions

Author: Turbo87

.github/workflows/ci.yml

@@ -177,6 +177,18 @@ jobs:
       - run: sudo systemctl start postgresql.service
       - run: sudo -u postgres psql -c "ALTER USER postgres WITH PASSWORD 'postgres'"
 
+      # Apply PostgreSQL performance optimizations for test speed
+      # WARNING: These settings sacrifice data durability for speed - test environments only!
+      - run: |
+          PGPASSWORD=postgres psql -h localhost -U postgres -d postgres -c "ALTER SYSTEM SET fsync = off;"
+          PGPASSWORD=postgres psql -h localhost -U postgres -d postgres -c "ALTER SYSTEM SET wal_level = minimal;"
+          PGPASSWORD=postgres psql -h localhost -U postgres -d postgres -c "ALTER SYSTEM SET full_page_writes = off;"
+          PGPASSWORD=postgres psql -h localhost -U postgres -d postgres -c "ALTER SYSTEM SET checkpoint_timeout = '10min';"
+          PGPASSWORD=postgres psql -h localhost -U postgres -d postgres -c "ALTER SYSTEM SET shared_buffers = '256MB';"
+          PGPASSWORD=postgres psql -h localhost -U postgres -d postgres -c "ALTER SYSTEM SET synchronous_commit = off;"
+          PGPASSWORD=postgres psql -h localhost -U postgres -d postgres -c "ALTER SYSTEM SET max_wal_senders = 0;"
+          PGPASSWORD=postgres psql -h localhost -U postgres -d postgres -c "SELECT pg_reload_conf();"
+
       - run: cargo build --tests --workspace
       - run: cargo test --workspace