我的表test_orc包含（对于一个分区）：
col1 col2 part1
abc def 1
ghi jkl 1
mno pqr 1
koi hai 1
jo pgl 1
hai tre 1
通过跑步
hive --orcfiledump /hive/user.db/test_orc/part1=1/000000_0
我得到以下信息：
Structure for /hive/a0m01lf.db/test_orc/part1=1/000000_0 .
2018-02-18 22:10:24 INFO: org.apache.hadoop.hive.ql.io.orc.ReaderImpl - Reading ORC rows from /hive/a0m01lf.db/test_orc/part1=1/000000_0 with {include: null, offset: 0, length: 9223372036854775807} .
Rows: 6 .
Compression: ZLIB .
Compression size: 262144 .
Type: struct<_col0:string,_col1:string> .
Stripe Statistics:
Stripe 1:
Column 0: count: 6 .
Column 1: count: 6 min: abc max: …