Presto 服务的所有请求都应该使用 Presto REST API v1 版本。

    若要请求服务，请使用显式的 URL 。 你需要在发送请求前更新 presto.service:8081。

    欲了解更多关于 headers 的信息，请参阅 PrestoHeaders。

    Schema

    你可以在 HTTP 正文中使用语句。 所有数据都是作为 JSON 文档收到的，它可能包含一个 next Uri 链接。 如果收到的 JSON 文档包含一个 nextUri 链接， 请求继续使用 nextUri 链接，直到收到的数据不包含 nextUri 链接。 如果没有返回错误，则查询成功。 如果一个 错误 字段显示在 统计信息中，这意味着查询失败。

    1. ➜  ~ curl --header "X-Presto-User: test-user" --request POST --data 'show catalogs' http://localhost:8081/v1/statement
    2. {
    3.    "infoUri" : "http://localhost:8081/ui/query.html?20191113_033653_00006_dg6hb",
    4.    "stats" : {
    5.       "queued" : true,
    6.       "nodes" : 0,
    7.       "userTimeMillis" : 0,
    8.       "cpuTimeMillis" : 0,
    9.       "wallTimeMillis" : 0,
    10.       "processedBytes" : 0,
    11.       "processedRows" : 0,
    12.       "runningSplits" : 0,
    13.       "queuedTimeMillis" : 0,
    14.       "queuedSplits" : 0,
    15.       "completedSplits" : 0,
    16.       "totalSplits" : 0,
    17.       "scheduled" : false,
    18.       "peakMemoryBytes" : 0,
    19.       "state" : "QUEUED",
    20.       "elapsedTimeMillis" : 0
    21.    },
    22.    "id" : "20191113_033653_00006_dg6hb",
    23.    "nextUri" : "http://localhost:8081/v1/statement/20191113_033653_00006_dg6hb/1"
    24. }
    26. ➜  ~ curl http://localhost:8081/v1/statement/20191113_033653_00006_dg6hb/1
    27. {
    28.    "infoUri" : "http://localhost:8081/ui/query.html?20191113_033653_00006_dg6hb",
    29.    "nextUri" : "http://localhost:8081/v1/statement/20191113_033653_00006_dg6hb/2",
    30.    "id" : "20191113_033653_00006_dg6hb",
    31.    "stats" : {
    32.       "state" : "PLANNING",
    33.       "totalSplits" : 0,
    34.       "queued" : false,
    35.       "userTimeMillis" : 0,
    36.       "completedSplits" : 0,
    37.       "scheduled" : false,
    38.       "wallTimeMillis" : 0,
    39.       "runningSplits" : 0,
    41.       "cpuTimeMillis" : 0,
    42.       "processedRows" : 0,
    43.       "processedBytes" : 0,
    44.       "nodes" : 0,
    45.       "queuedTimeMillis" : 1,
    46.       "elapsedTimeMillis" : 2,
    47.       "peakMemoryBytes" : 0
    48.    }
    50. ➜  ~ curl http://localhost:8081/v1/statement/20191113_033653_00006_dg6hb/2
    51. {
    52.    "id" : "20191113_033653_00006_dg6hb",
    53.    "data" : [
    54.       [
    55.          "pulsar"
    56.       ],
    57.       [
    58.          "system"
    59.       ]
    60.    ],
    61.    "infoUri" : "http://localhost:8081/ui/query.html?20191113_033653_00006_dg6hb",
    62.    "columns" : [
    63.       {
    64.          "typeSignature" : {
    65.             "rawType" : "varchar",
    66.             "arguments" : [
    67.                {
    68.                   "kind" : "LONG_LITERAL",
    69.                   "value" : 6
    70.                }
    71.             ],
    72.             "literalArguments" : [],
    73.             "typeArguments" : []
    74.          },
    75.          "name" : "Catalog",
    76.          "type" : "varchar(6)"
    77.       }
    78.    ],
    79.    "stats" : {
    80.       "wallTimeMillis" : 104,
    81.       "scheduled" : true,
    82.       "userTimeMillis" : 14,
    83.       "progressPercentage" : 100,
    84.       "totalSplits" : 19,
    85.       "nodes" : 1,
    86.       "cpuTimeMillis" : 16,
    87.       "queued" : false,
    88.       "queuedTimeMillis" : 1,
    89.       "state" : "FINISHED",
    90.       "peakMemoryBytes" : 0,
    91.       "elapsedTimeMillis" : 111,
    92.       "processedBytes" : 0,
    93.       "processedRows" : 0,
    95.       "rootStage" : {
    96.          "cpuTimeMillis" : 1,
    97.          "runningSplits" : 0,
    98.          "completedSplits" : 1,
    99.          "subStages" : [
    100.             {
    101.                "cpuTimeMillis" : 14,
    102.                "runningSplits" : 0,
    103.                "state" : "FINISHED",
    104.                "completedSplits" : 17,
    105.                "subStages" : [
    106.                   {
    107.                      "wallTimeMillis" : 7,
    108.                      "subStages" : [],
    109.                      "stageId" : "2",
    110.                      "done" : true,
    111.                      "nodes" : 1,
    112.                      "totalSplits" : 1,
    113.                      "processedBytes" : 22,
    114.                      "processedRows" : 2,
    115.                      "queuedSplits" : 0,
    116.                      "userTimeMillis" : 1,
    117.                      "cpuTimeMillis" : 1,
    118.                      "runningSplits" : 0,
    119.                      "state" : "FINISHED",
    120.                      "completedSplits" : 1
    121.                   }
    122.                ],
    123.                "wallTimeMillis" : 92,
    124.                "nodes" : 1,
    125.                "done" : true,
    126.                "stageId" : "1",
    127.                "userTimeMillis" : 12,
    128.                "processedRows" : 2,
    129.                "processedBytes" : 51,
    130.                "queuedSplits" : 0,
    131.                "totalSplits" : 17
    132.             }
    133.          ],
    134.          "wallTimeMillis" : 5,
    135.          "done" : true,
    136.          "nodes" : 1,
    137.          "stageId" : "0",
    138.          "userTimeMillis" : 1,
    139.          "processedRows" : 2,
    140.          "processedBytes" : 22,
    141.          "totalSplits" : 1,
    142.          "queuedSplits" : 0
    143.       },
    144.       "runningSplits" : 0,
    145.       "completedSplits" : 19
    146.    }