Struct datafusion::execution::options::ParquetReadOptions

pub struct ParquetReadOptions<'a> {
    pub file_extension: &'a str,
    pub table_partition_cols: Vec<String>,
    pub parquet_pruning: bool,
}

Parquet read options

Fields

file_extension: &'a str

File extension; only files with this extension are selected for data input. Defaults to “.parquet”.

table_partition_cols: Vec<String>

Partition Columns

parquet_pruning: bool

Should DataFusion parquet reader using the predicate to prune data, overridden by value on execution::context::SessionConfig

Implementations

impl<'a> ParquetReadOptions<'a>

pub fn parquet_pruning(self, parquet_pruning: bool) -> Self

Specify parquet_pruning

pub fn table_partition_cols(self, table_partition_cols: Vec<String>) -> Self

Specify table_partition_cols for partition pruning

pub fn to_listing_options(&self, target_partitions: usize) -> ListingOptions

Helper to convert these user facing options to ListingTable options

Trait Implementations

impl<'a> Clone for ParquetReadOptions<'a>

fn clone(&self) -> ParquetReadOptions<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Default for ParquetReadOptions<'a>

fn default() -> Self

Returns the “default value” for a type.