Merge pull request #269 from felladaniel36-hash/#238-Add-automated-data-archiving-for-historical-subscription-events-to-maintain-database-query-performance-FIXED

ISSUE #238 FIXED

Author: elizabetheonoja-art

005_create_soroban_events_archive.sql

@@ -0,0 +1,28 @@
+/**
+ * Migration: Create soroban_events_archive table for automated data archiving
+ * Issue: Add automated data archiving for historical subscription events to maintain database query performance
+ * Focus Area: Backend Reliability, Security Hardening, and Soroban Integration Optimization
+ */
+
+CREATE TABLE IF NOT EXISTS soroban_events_archive (
+  id TEXT PRIMARY KEY,
+  contract_id TEXT NOT NULL,
+  transaction_hash TEXT NOT NULL,
+  event_index INTEGER NOT NULL,
+  ledger_sequence INTEGER NOT NULL,
+  event_type TEXT NOT NULL,
+  event_data TEXT NOT NULL,
+  raw_xdr TEXT,
+  ledger_timestamp TEXT NOT NULL,
+  ingested_at TEXT NOT NULL,
+  processed_at TEXT,
+  status TEXT NOT NULL,
+  error_message TEXT,
+  retry_count INTEGER NOT NULL DEFAULT 0,
+  archived_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX IF NOT EXISTS idx_soroban_archive_contract_id ON soroban_events_archive (contract_id);
+CREATE INDEX IF NOT EXISTS idx_soroban_archive_ledger_timestamp ON soroban_events_archive (ledger_timestamp);
+CREATE INDEX IF NOT EXISTS idx_soroban_archive_event_type ON soroban_events_archive (event_type);
+CREATE INDEX IF NOT EXISTS idx_soroban_archive_archived_at ON soroban_events_archive (archived_at);