emmamendelsohn commented on issue #40202: URL: https://github.com/apache/arrow/issues/40202#issuecomment-1959854513
Got identical results for the three, other than difference in space saved value. <details> <summary> Mac </summary> ``` ############ file meta data ############ created_by: parquet-cpp-arrow version 14.0.0 num_columns: 11 num_rows: 32 num_row_groups: 1 format_version: 2.6 serialized_size: 2823 ############ Columns ############ mpg cyl disp hp drat wt qsec vs am gear carb ############ Column(mpg) ############ name: mpg path: mpg max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 22%) ############ Column(cyl) ############ name: cyl path: cyl max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 0%) ############ Column(disp) ############ name: disp path: disp max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 20%) ############ Column(hp) ############ name: hp path: hp max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 20%) ############ Column(drat) ############ name: drat path: drat max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 9%) ############ Column(wt) ############ name: wt path: wt max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 12%) ############ Column(qsec) ############ name: qsec path: qsec max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 12%) ############ Column(vs) ############ name: vs path: vs max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: -4%) ############ Column(am) ############ name: am path: am max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: -4%) ############ Column(gear) ############ name: gear path: gear max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 0%) ############ Column(carb) ############ name: carb path: carb max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 8% ``` </details> <details> <summary> Linux </summary> ``` ############ file meta data ############ created_by: parquet-cpp-arrow version 14.0.0 num_columns: 11 num_rows: 32 num_row_groups: 1 format_version: 2.6 serialized_size: 2823 ############ Columns ############ mpg cyl disp hp drat wt qsec vs am gear carb ############ Column(mpg) ############ name: mpg path: mpg max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 22%) ############ Column(cyl) ############ name: cyl path: cyl max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 0%) ############ Column(disp) ############ name: disp path: disp max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 20%) ############ Column(hp) ############ name: hp path: hp max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 20%) ############ Column(drat) ############ name: drat path: drat max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 9%) ############ Column(wt) ############ name: wt path: wt max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 12%) ############ Column(qsec) ############ name: qsec path: qsec max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 13%) ############ Column(vs) ############ name: vs path: vs max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: -4%) ############ Column(am) ############ name: am path: am max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: -4%) ############ Column(gear) ############ name: gear path: gear max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 0%) ############ Column(carb) ############ name: carb path: carb max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 8%) ``` </details> <details> <summary> Windows </summary> ``` ############ file meta data ############ created_by: parquet-cpp-arrow version 14.0.0 num_columns: 11 num_rows: 32 num_row_groups: 1 format_version: 2.6 serialized_size: 2823 ############ Columns ############ mpg cyl disp hp drat wt qsec vs am gear carb ############ Column(mpg) ############ name: mpg path: mpg max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 22%) ############ Column(cyl) ############ name: cyl path: cyl max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 0%) ############ Column(disp) ############ name: disp path: disp max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 20%) ############ Column(hp) ############ name: hp path: hp max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 20%) ############ Column(drat) ############ name: drat path: drat max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 9%) ############ Column(wt) ############ name: wt path: wt max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 12%) ############ Column(qsec) ############ name: qsec path: qsec max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 13%) ############ Column(vs) ############ name: vs path: vs max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: -4%) ############ Column(am) ############ name: am path: am max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: -4%) ############ Column(gear) ############ name: gear path: gear max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 0%) ############ Column(carb) ############ name: carb path: carb max_definition_level: 1 max_repetition_level: 0 physical_type: DOUBLE logical_type: None converted_type (legacy): NONE compression: SNAPPY (space_saved: 8%) ``` </details> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
