问题描述
我在下面的查询中尝试创建存储桶表,但失败了。但是,如果我删除
子句CLUSTERED BY
,查询可能会成功。有什么建议吗?谢谢。
错误消息:no viable alternative at input create external
CREATE EXTERNAL TABLE nation5(
n_nationkey bigint,n_name string,n_rgionkey int,n_comment string)
CLUSTERED BY
n_regionkey INTO 256 BUCKETS
ROW FORMAT SERDE
'org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe'
WITH SERDEPROPERTIES (
'path'='s3://test/testbucket/nation5/')
STORED AS INPUTFORMAT
'org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat'
OUTPUTFORMAT
'org.apache.hadoop.hive.ql.io.parquet.MapredParquetoutputFormat'
LOCATION
's3://test/testbucket/nation5/'
解决方法
CLUSTERED BY
列需要放在方括号中,可完成以下工作:
CREATE EXTERNAL TABLE test.nation5(
n_nationkey bigint,n_name string,n_regionkey int,n_comment string)
CLUSTERED BY
(n_regionkey) INTO 256 BUCKETS
ROW FORMAT SERDE
'org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe'
WITH SERDEPROPERTIES (
'path'='s3://test/testbucket/nation5/')
STORED AS INPUTFORMAT
'org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat'
OUTPUTFORMAT
'org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat'
LOCATION
's3://test/testbucket/nation5/'
(您在列定义的n_rgionkey
中也存在拼写错误。