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Posted to dev@parquet.apache.org by "Onur Soyer (JIRA)" <ji...@apache.org> on 2015/10/02 02:33:26 UTC
[jira] [Created] (PARQUET-386) Printing out the statistics of
metadata in parquet-tools
Onur Soyer created PARQUET-386:
----------------------------------
Summary: Printing out the statistics of metadata in parquet-tools
Key: PARQUET-386
URL: https://issues.apache.org/jira/browse/PARQUET-386
Project: Parquet
Issue Type: Improvement
Components: parquet-mr
Reporter: Onur Soyer
Priority: Trivial
While playing with "parquet-tools", I found that the statistics data of columns is not being printed out when the following is executed;
$ java -jar parquet-tools-1.6.0rc3-SNAPSHOT.jar schema --detailed perf.1000.parquet
And the output for a row group like this;
=====================================================================================================================
row group 1: RC:747388 TS:134218473 OFFSET:4
--------------------------------------------------------------------------------
cust_key: INT64 UNCOMPRESSED DO:0 FPO:4 SZ:5979444/5979444/1.00 VC:747388 ENC:PLAIN,RLE,BIT_PACKED
name: BINARY UNCOMPRESSED DO:0 FPO:5979448 SZ:16443766/16443766/1.00 VC:747388 ENC:PLAIN,RLE,BIT_PACKED
address: BINARY UNCOMPRESSED DO:0 FPO:22423214 SZ:21716568/21716568/1.00 VC:747388 ENC:PLAIN,RLE,BIT_PACKED
nation_key: INT32 UNCOMPRESSED DO:0 FPO:44139782 SZ:2989697/2989697/1.00 VC:747388 ENC:PLAIN,RLE,BIT_PACKED
phone: BINARY UNCOMPRESSED DO:0 FPO:47129479 SZ:14201364/14201364/1.00 VC:747388 ENC:PLAIN,RLE,BIT_PACKED
acctbal: DOUBLE UNCOMPRESSED DO:0 FPO:61330843 SZ:5979444/5979444/1.00 VC:747388 ENC:PLAIN,RLE,BIT_PACKED
mktsegment: BINARY UNCOMPRESSED DO:0 FPO:67310287 SZ:9714675/9714675/1.00 VC:747388 ENC:PLAIN,RLE,BIT_PACKED
comment_col: BINARY UNCOMPRESSED DO:0 FPO:77024962 SZ:57193515/57193515/1.00 VC:747388 ENC:PLAIN,RLE,BIT_PACKED
=====================================================================================================================
However, it would be great to print out the data of statistics of metadata.
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