Struct parquet::file::metadata::RowGroupMetaDataBuilder

pub struct RowGroupMetaDataBuilder(/* private fields */);

Builder for row group metadata.

Implementations

impl RowGroupMetaDataBuilder

pub fn set_num_rows(self, value: i64) -> Self

Sets number of rows in this row group.

pub fn set_sorting_columns(self, value: Option<Vec<SortingColumn>>) -> Self

Sets the sorting order for columns

pub fn set_total_byte_size(self, value: i64) -> Self

Sets total size in bytes for this row group.

pub fn take_columns(&mut self) -> Vec<ColumnChunkMetaData>

Takes ownership of the the column metadata in this builder, and clears the list of columns.

This can be used for more efficient creation of a new RowGroupMetaData from an existing one.

pub fn set_column_metadata(self, value: Vec<ColumnChunkMetaData>) -> Self

Sets column metadata for this row group.

pub fn add_column_metadata(self, value: ColumnChunkMetaData) -> Self

Adds a column metadata to this row group

pub fn set_ordinal(self, value: i16) -> Self

Sets ordinal for this row group.

pub fn set_file_offset(self, value: i64) -> Self

Sets file offset for this row group.

pub fn build(self) -> Result<RowGroupMetaData>

Builds row group metadata.