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comparing_parquet_files

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nic@xps-15:~/arrow$ parquet-tools inspect ../Downloads/papers.parquet

nic@xps-15:~/arrow$ parquet-tools inspect "/tmp/RtmpfoyxmB/file18fa6b312836/part-0.parquet"

############ file meta data ############

created_by: parquet-go version 18.0.0-SNAPSHOT

created_by: parquet-cpp-arrow version 20.0.0-SNAPSHOT

num_columns: 13

num_rows: 64141

num_row_groups: 1

format_version: 2.6

serialized_size: 1819

serialized_size: 3124

############ Columns ############

paper_id

softcite_id

title

published_year

published_date

publication_venue

publisher_name

doi

pmcid

pmid

genre

license_type

has_mentions

############ Column(paper_id) ############

path: paper_id

max_definition_level: 0

max_definition_level: 1

max_repetition_level: 0

physical_type: INT32

logical_type: Int(bitWidth=32, isSigned=false)

converted_type (legacy): UINT_32

compression: GZIP (space_saved: 13%)

compression: GZIP (space_saved: 22%)

############ Column(softcite_id) ############

path: softcite_id

max_definition_level: 0

max_definition_level: 1

max_repetition_level: 0

physical_type: BYTE_ARRAY

logical_type: String

converted_type (legacy): UTF8

compression: GZIP (space_saved: 50%)

compression: GZIP (space_saved: 47%)

############ Column(title) ############

path: title

max_definition_level: 1

max_repetition_level: 0

physical_type: BYTE_ARRAY

logical_type: String

converted_type (legacy): UTF8

compression: GZIP (space_saved: 56%)

compression: GZIP (space_saved: 55%)

############ Column(published_year) ############

path: published_year

max_definition_level: 1

max_repetition_level: 0

physical_type: INT32

logical_type: Int(bitWidth=16, isSigned=false)

converted_type (legacy): UINT_16

compression: GZIP (space_saved: 18%)

############ Column(published_date) ############

path: published_date

max_definition_level: 1

max_repetition_level: 0

physical_type: INT32

logical_type: Date

converted_type (legacy): DATE

compression: GZIP (space_saved: 10%)

############ Column(publication_venue) ############

path: publication_venue

max_definition_level: 0

max_definition_level: 1

max_repetition_level: 0

physical_type: BYTE_ARRAY

logical_type: String

converted_type (legacy): UTF8

compression: GZIP (space_saved: 59%)

############ Column(publisher_name) ############

path: publisher_name

max_definition_level: 1

max_repetition_level: 0

physical_type: BYTE_ARRAY

logical_type: String

converted_type (legacy): UTF8

compression: GZIP (space_saved: 49%)

compression: GZIP (space_saved: 48%)

############ Column(doi) ############

path: doi

max_definition_level: 0

max_definition_level: 1

max_repetition_level: 0

physical_type: BYTE_ARRAY

logical_type: String

converted_type (legacy): UTF8

compression: GZIP (space_saved: 61%)

compression: GZIP (space_saved: 59%)

############ Column(pmcid) ############

path: pmcid

max_definition_level: 1

max_repetition_level: 0

physical_type: BYTE_ARRAY

logical_type: String

converted_type (legacy): UTF8

compression: GZIP (space_saved: 63%)

############ Column(pmid) ############

path: pmid

max_definition_level: 1

max_repetition_level: 0

physical_type: BYTE_ARRAY

logical_type: String

converted_type (legacy): UTF8

compression: GZIP (space_saved: 57%)

compression: GZIP (space_saved: 56%)

############ Column(genre) ############

path: genre

max_definition_level: 1

max_repetition_level: 0

physical_type: BYTE_ARRAY

logical_type: String

converted_type (legacy): UTF8

compression: GZIP (space_saved: 60%)

compression: GZIP (space_saved: 56%)

############ Column(license_type) ############

path: license_type

max_definition_level: 1

max_repetition_level: 0

physical_type: BYTE_ARRAY

logical_type: String

converted_type (legacy): UTF8

compression: GZIP (space_saved: 49%)

compression: GZIP (space_saved: 45%)

############ Column(has_mentions) ############

path: has_mentions

max_definition_level: 0

max_definition_level: 1

max_repetition_level: 0

physical_type: BOOLEAN

logical_type: None

converted_type (legacy): NONE

compression: GZIP (space_saved: 99%)

Saved diffs

Original text

Open file

nic@xps-15:~/arrow$ parquet-tools inspect ../Downloads/papers.parquet

############ file meta data ############
created_by: parquet-go version 18.0.0-SNAPSHOT
num_columns: 13
num_rows: 64141
num_row_groups: 1
format_version: 2.6
serialized_size: 1819

############ Columns ############
paper_id
softcite_id
title
published_year
published_date
publication_venue
publisher_name
doi
pmcid
pmid
genre
license_type
has_mentions

############ Column(paper_id) ############
name: paper_id
path: paper_id
max_definition_level: 0
max_repetition_level: 0
physical_type: INT32
logical_type: Int(bitWidth=32, isSigned=false)
converted_type (legacy): UINT_32
compression: GZIP (space_saved: 13%)

############ Column(softcite_id) ############
name: softcite_id
path: softcite_id
max_definition_level: 0
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 50%)

############ Column(title) ############
name: title
path: title
max_definition_level: 1
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 56%)

############ Column(published_year) ############
name: published_year
path: published_year
max_definition_level: 1
max_repetition_level: 0
physical_type: INT32
logical_type: Int(bitWidth=16, isSigned=false)
converted_type (legacy): UINT_16
compression: GZIP (space_saved: 18%)

############ Column(published_date) ############
name: published_date
path: published_date
max_definition_level: 1
max_repetition_level: 0
physical_type: INT32
logical_type: Date
converted_type (legacy): DATE
compression: GZIP (space_saved: 10%)

############ Column(publication_venue) ############
name: publication_venue
path: publication_venue
max_definition_level: 0
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 59%)

############ Column(publisher_name) ############
name: publisher_name
path: publisher_name
max_definition_level: 1
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 49%)

############ Column(doi) ############
name: doi
path: doi
max_definition_level: 0
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 61%)

############ Column(pmcid) ############
name: pmcid
path: pmcid
max_definition_level: 1
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 63%)

############ Column(pmid) ############
name: pmid
path: pmid
max_definition_level: 1
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 57%)

############ Column(genre) ############
name: genre
path: genre
max_definition_level: 1
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 60%)

############ Column(license_type) ############
name: license_type
path: license_type
max_definition_level: 1
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 49%)

############ Column(has_mentions) ############
name: has_mentions
path: has_mentions
max_definition_level: 0
max_repetition_level: 0
physical_type: BOOLEAN
logical_type: None
converted_type (legacy): NONE
compression: GZIP (space_saved: 99%)

Changed text

Open file

nic@xps-15:~/arrow$ parquet-tools inspect "/tmp/RtmpfoyxmB/file18fa6b312836/part-0.parquet"

############ file meta data ############
created_by: parquet-cpp-arrow version 20.0.0-SNAPSHOT
num_columns: 13
num_rows: 64141
num_row_groups: 1
format_version: 2.6
serialized_size: 3124

############ Columns ############
paper_id
softcite_id
title
published_year
published_date
publication_venue
publisher_name
doi
pmcid
pmid
genre
license_type
has_mentions

############ Column(paper_id) ############
name: paper_id
path: paper_id
max_definition_level: 1
max_repetition_level: 0
physical_type: INT32
logical_type: Int(bitWidth=32, isSigned=false)
converted_type (legacy): UINT_32
compression: GZIP (space_saved: 22%)

############ Column(softcite_id) ############
name: softcite_id
path: softcite_id
max_definition_level: 1
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 47%)

############ Column(publication_venue) ############
name: publication_venue
path: publication_venue
max_definition_level: 1
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 59%)

############ Column(doi) ############
name: doi
path: doi
max_definition_level: 1
max_repetition_level: 0
physical_type: BYTE_ARRAY
logical_type: String
converted_type (legacy): UTF8
compression: GZIP (space_saved: 59%)

############ Column(has_mentions) ############
name: has_mentions
path: has_mentions
max_definition_level: 1
max_repetition_level: 0
physical_type: BOOLEAN
logical_type: None
converted_type (legacy): NONE
compression: GZIP (space_saved: 99%)