Struct Args 

pub(crate) struct Args {

    pub(crate) input: String,
    pub(crate) output: String,
    pub(crate) compression: Option<CompressionArgs>,
    pub(crate) compression_level: Option<u32>,
    pub(crate) encoding: Option<EncodingArgs>,
    pub(crate) dictionary_enabled: Option<bool>,
    pub(crate) dictionary_page_size_limit: Option<usize>,
    pub(crate) max_row_group_size: Option<usize>,
    pub(crate) data_page_row_count_limit: Option<usize>,
    pub(crate) data_page_size_limit: Option<usize>,
    pub(crate) statistics_truncate_length: Option<usize>,
    pub(crate) column_index_truncate_length: Option<usize>,
    pub(crate) write_page_header_statistics: Option<bool>,
    pub(crate) bloom_filter_enabled: Option<bool>,
    pub(crate) bloom_filter_fpp: Option<f64>,
    pub(crate) bloom_filter_ndv: Option<u64>,
    pub(crate) bloom_filter_position: Option<BloomFilterPositionArgs>,
    pub(crate) statistics_enabled: Option<EnabledStatisticsArgs>,
    pub(crate) writer_version: Option<WriterVersionArgs>,
    pub(crate) write_batch_size: Option<usize>,
    pub(crate) coerce_types: Option<bool>,
}

Fields

input: String

Path to input parquet file.

output: String

Path to output parquet file.

compression: Option<CompressionArgs>

Compression used for all columns.

compression_level: Option<u32>

Compression level for gzip/brotli/zstd.

encoding: Option<EncodingArgs>

Encoding used for all columns, if dictionary is not enabled.

dictionary_enabled: Option<bool>

Sets flag to enable/disable dictionary encoding for all columns.

dictionary_page_size_limit: Option<usize>

Sets best effort maximum dictionary page size, in bytes.

max_row_group_size: Option<usize>

Sets maximum number of rows in a row group.

data_page_row_count_limit: Option<usize>

Sets best effort maximum number of rows in a data page.

data_page_size_limit: Option<usize>

Sets best effort maximum size of a data page in bytes.

statistics_truncate_length: Option<usize>

Sets the max length of min/max statistics in row group and data page header statistics for all columns.

Applicable only if statistics are enabled.

column_index_truncate_length: Option<usize>

Sets the max length of min/max statistics in the column index.

Applicable only if statistics are enabled.

write_page_header_statistics: Option<bool>

Write statistics to the data page headers?

Setting this true will also enable page level statistics.

bloom_filter_enabled: Option<bool>

Sets whether bloom filter is enabled for all columns.

bloom_filter_fpp: Option<f64>

Sets bloom filter false positive probability (fpp) for all columns.

bloom_filter_ndv: Option<u64>

Sets number of distinct values (ndv) for bloom filter for all columns.

bloom_filter_position: Option<BloomFilterPositionArgs>

Sets the position of bloom filter

statistics_enabled: Option<EnabledStatisticsArgs>

Sets flag to enable/disable statistics for all columns.

writer_version: Option<WriterVersionArgs>

Sets writer version.

write_batch_size: Option<usize>

Sets write batch size.

coerce_types: Option<bool>

Sets whether to coerce Arrow types to match Parquet specification

Trait Implementations

impl Args for Args

fn group_id() -> Option<Id>

Report the [ArgGroup::id][crate::ArgGroup::id] for this set of arguments

fn augment_args<'b>(__clap_app: Command) -> Command

Append to [Command] so it can instantiate Self via [FromArgMatches::from_arg_matches_mut]

fn augment_args_for_update<'b>(__clap_app: Command) -> Command

Append to [Command] so it can instantiate self via [FromArgMatches::update_from_arg_matches_mut]

impl CommandFactory for Args

fn command<'b>() -> Command

Build a [Command] that can instantiate Self.

fn command_for_update<'b>() -> Command

Build a [Command] that can update self.

impl Debug for Args

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromArgMatches for Args

fn from_arg_matches(__clap_arg_matches: &ArgMatches) -> Result<Self, Error>

Instantiate Self from [ArgMatches], parsing the arguments as needed.

fn from_arg_matches_mut( __clap_arg_matches: &mut ArgMatches, ) -> Result<Self, Error>

Instantiate Self from [ArgMatches], parsing the arguments as needed.

fn update_from_arg_matches( &mut self, __clap_arg_matches: &ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

fn update_from_arg_matches_mut( &mut self, __clap_arg_matches: &mut ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

impl Parser for Args

fn parse() -> Self

Parse from std::env::args_os(), [exit][Error::exit] on error.

fn try_parse() -> Result<Self, Error>

Parse from std::env::args_os(), return Err on error.

fn parse_from<I, T>(itr: I) -> Self

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Parse from iterator, [exit][Error::exit] on error.

fn try_parse_from<I, T>(itr: I) -> Result<Self, Error>

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Parse from iterator, return Err on error.

fn update_from<I, T>(&mut self, itr: I)

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Update from iterator, [exit][Error::exit] on error.

fn try_update_from<I, T>(&mut self, itr: I) -> Result<(), Error>

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Update from iterator, return Err on error.