{
  "auditId": "dp-db-search-optimization-2022",
  "client": "Digitally Please",
  "auditDate": "2022-06-25",
  "systems": {
    "dbEngine": "MySQL 8.0.28 (AWS RDS)",
    "tableCount": 42,
    "searchIndexOptimized": "articles_search_idx"
  },
  "metrics": {
    "queriesPerSecond": 450,
    "preOptimization": {
      "averageQueryLatencyMs": 1850,
      "databaseCpuUtilizationPercent": 94.0,
      "pageLoadTimeSeconds": 4.6
    },
    "postOptimization": {
      "averageQueryLatencyMs": 140,
      "databaseCpuUtilizationPercent": 22.0,
      "pageLoadTimeSeconds": 1.4
    },
    "improvements": {
      "latencyReductionPercent": 92.4,
      "databaseCpuUtilizationReductionPercent": 76.5,
      "bounceRateReductionPercent": 12.0
    }
  },
  "optimizationDetails": [
    {
      "type": "Fulltext Indexing",
      "targetColumn": "articles.content",
      "impact": "Eliminated full-table scans for keyword searches."
    },
    {
      "type": "Query Restructuring",
      "action": "Replaced nested subqueries with inner joins and indexed foreign keys.",
      "impact": "Reduced database server join buffer utilization by 80%."
    },
    {
      "type": "Caching Layer",
      "action": "Implemented Redis key-value cache for hot query results (TTL: 600s).",
      "impact": "Offloaded 65% of duplicate search queries from the primary database."
    }
  ]
}