{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/Session",
  "title": "Session",
  "type": "object",
  "description": "An active SQL session on the CockroachDB cluster, representing a connection from a client application.",
  "properties": {
    "node_id": {
      "type": "integer",
      "description": "Node ID where this session is being served."
    },
    "username": {
      "type": "string",
      "description": "SQL username of the session."
    },
    "client_address": {
      "type": "string",
      "description": "Network address of the client (host:port)."
    },
    "application_name": {
      "type": "string",
      "description": "Application name reported by the SQL client driver."
    },
    "start": {
      "type": "string",
      "format": "date-time",
      "description": "Timestamp when the session was established."
    },
    "last_active_query": {
      "type": "string",
      "description": "Most recently executed SQL query in this session."
    },
    "id": {
      "type": "string",
      "description": "Unique identifier of the session."
    },
    "alloc_bytes": {
      "type": "integer",
      "format": "int64",
      "description": "Memory allocated by this session in bytes."
    },
    "max_alloc_bytes": {
      "type": "integer",
      "format": "int64",
      "description": "Peak memory allocation for this session in bytes."
    },
    "active_queries": {
      "type": "array",
      "description": "Currently executing queries within this session.",
      "items": {
        "type": "object"
      }
    },
    "active_txn": {
      "type": "object",
      "description": "Currently active transaction within this session, if any."
    }
  }
}