PrestoDB蜂巢目录:在输入“创建外部”时没有可行的替代方案

I am running a query in Teradata PrestoDB distribution for Hive catalog as:

我在Teradata PrestoDB发行版中为Hive catalog运行一个查询:

CREATE EXTERNAL TABLE hive.default.mydata
id INT, datetime timestamp, latitude FLOAT,
longitude FLOAT, bookingid VARCHAR, pre_lat FLOAT,
pre_long FLOAT, time_hour decimal(6, 1), dist_kms decimal(6, 1),
ma6_dist_kms decimal(6, 1), istationary INT, quality_overall VARCHAR,
quality_nonstationary VARCHAR, cartype VARCHAR, isbigloss INT,
bookregion VARCHAR, iho_road VARCHAR)
STORED AS PARQUET
LOCATION "s3://sb.mycompany.com/someFolder/anotherFolder";

Throwing following exception:

把以下异常:

Query 20180316_022346_00001_h9iie failed: line 1:8: no viable alternative at input 'CREATE EXTERNAL'

Even when I use hive and run a show table command, I see an error as Schema is set but catalog is not:

甚至当我使用hive并运行show table命令时，我也会看到一个错误，因为模式设置了，但是目录没有:

presto> use hive;
presto:hive> show tables;
Error running command:
Error starting query at http://localhost:8080/v1/statement returned HTTP response code 400.
Response info:
JsonResponse{statusCode=400, statusMessage=Bad Request, headers={Content-Length=[32], Date=[Fri, 16 Mar 2018 02:25:25 GMT], Content-Type=[text/plain]}, hasValue=false, value=null}
Response body:
Schema is set but catalog is not

Any help would be appreciated. Thanks.

如有任何帮助，我们将不胜感激。谢谢。

1 个解决方案

#1

There is no such thing like CREATE EXTERNAL TABLE in Presto. In order to create Hive external table in Presto, please do something like:

在Presto中没有创建外部表之类的东西。为了在Presto中创建Hive外部表，请执行以下操作:

CREATE TABLE hive.web.request_logs (
  request_time timestamp,
  url varchar,
  ip varchar,
  user_agent varchar
)
WITH (
  format = 'TEXTFILE',
  external_location = 's3://my-bucket/data/logs/'
)

Please visit this page to see how to interact with Hive from Presto: https://docs.starburstdata.com/latest/connector/hive.html?highlight=hive

请访问此页面以了解如何从Presto与Hive进行交互:https://docs.starburstdata.com/latest/connector/hive.html?

use hive; set only the current schema in the user session. I think you wanted to do something like: USE hive.default;. Please take a look here for more details: https://docs.starburstdata.com/latest/sql/use.html

使用蜂巢;只设置用户会话中的当前模式。我认为你想做的是:使用hive.default;请在这里查看更多细节:https://docs.starburstdata.com/latest/sql/use.html。

#1