Hive ORC表的使用

创建普通临时表：

create table if not exists test_orc_tmp(

  name string,

  gender string,

  cnt BIGINT

)row format delimited fields terminated by '|' stored as textfile;

创建ORC表：

drop table test_orc;

create table if not exists test_orc(

  name string,

  gender string,

  cnt BIGINT

)STORED AS ORC;

创建测试数据  vi orc.txt

goldenkey0|male|111

goldenkey1|male|112

goldenkey2|male|113

goldenkey3|male|114

goldenkey4|male|115

goldenkey5|male|116

goldenkey6|male|117

将测试数据导入临时普通表：

LOAD DATA INPATH '/tmp/orc.txt' OVERWRITE INTO TABLE test_orc_tmp;

将临时普通表的数据插入到ORC表：

INSERT INTO TABLE test_orc SELECT * FROM test_orc_tmp;

查看ORC表是否有数据：

select * from test_orc_tmp;