A tool to show metadata about a Parquet file
Project description
parquet-metadata
Dump metadata about a Parquet file. You may also be interested in csv2parquet.
sudo pip install parquet-metadata
parquet-metadata parquet.file
Sample output:
file created_by parquet-cpp version 1.4.1-SNAPSHOT
file columns 9
file row_groups 1
file rows 2
row_group 0 size 634
row_group 0 rows 2
row_group 0 columns 9
row_group 0 bool type BOOLEAN
row_group 0 bool num_values 2
row_group 0 bool compression SNAPPY
row_group 0 bool encodings PLAIN,RLE
row_group 0 bool compressed_size 36
row_group 0 bool uncompressed_size 34
row_group 0 bool stats:min False
row_group 0 bool stats:max True
row_group 0 float32 type FLOAT
row_group 0 float32 num_values 2
row_group 0 float32 compression SNAPPY
row_group 0 float32 encodings PLAIN_DICTIONARY,PLAIN,RLE
row_group 0 float32 compressed_size 68
row_group 0 float32 uncompressed_size 64
row_group 0 float32 stats:min 0.5
row_group 0 float32 stats:max 0.6
[...]
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- Uploaded via: twine/1.11.0 pkginfo/1.4.2 requests/2.19.1 setuptools/39.2.0 requests-toolbelt/0.8.0 tqdm/4.23.4 CPython/3.5.2
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