Execute SQL

Executes raw SQL against the Athena client selected by `X-Athena-Client`. PostgreSQL clients may also be targeted with a direct PostgreSQL URI header (`x-pg-uri` preferred). This route is intended for advanced workflows where structured gateway payloads are insufficient. Use carefully with parameterized SQL on the caller side when constructing dynamic queries. Direct URI requests execute inline (deferred queue bypassed). Optional `schema_name` sets a schema-local search_path (`schema_name, public`) for PostgreSQL execution only.

curl -X POST "https://athena-cluster.com/gateway/query" \  -H "Content-Type: application/json" \  -d '{    "query": "SELECT id, path, status_code FROM http_request_log ORDER BY created_at DESC LIMIT 10;"  }'

{
  "status": "success",
  "message": "Query executed",
  "data": {
    "rows": [
      {
        "id": "5d845b27-8d06-40a0-9e76-08de9d9f3c1f",
        "path": "/gateway/fetch",
        "status_code": 200
      }
    ]
  }
}