Struct TpchGeneratorBuilder 

pub struct TpchGeneratorBuilder { /* private fields */ }

Builder for constructing a TpchGenerator.

Implementations

impl TpchGeneratorBuilder

pub fn new() -> Self

Create a new builder with default configuration.

pub fn scale_factor(&self) -> f64

Returns the scale factor.

pub fn with_scale_factor(self, scale_factor: f64) -> Self

Set the scale factor (e.g., 1.0 for 1GB, 10.0 for 10GB).

pub fn with_output_dir(self, output_dir: impl Into<PathBuf>) -> Self

Set the output directory.

pub fn with_tables(self, tables: Vec<Table>) -> Self

Set which tables to generate (default: all tables).

pub fn with_format(self, format: OutputFormat) -> Self

Set the output format (default: TBL).

pub fn with_num_threads(self, num_threads: usize) -> Self

Set the number of threads for parallel generation (default: number of CPUs).

pub fn with_parquet_compression(self, compression: Compression) -> Self

Set Parquet compression format (default: SNAPPY).

pub fn with_parquet_row_group_bytes(self, bytes: i64) -> Self

Set target row group size in bytes for Parquet files (default: 7MB).

pub fn with_parts(self, parts: i32) -> Self

Set the number of partitions to generate.

pub fn with_part(self, part: i32) -> Self

Set the specific partition to generate (1-based, requires parts to be set).

pub fn with_stdout(self, stdout: bool) -> Self

Write output to stdout instead of files.

pub fn with_csv_delimiter(self, delimiter: char) -> Self

Set the CSV delimiter character (only applies to CSV format, default: ‘,’).

pub fn with_progress_tracker(self, tracker: Arc<dyn ProgressTracker>) -> Self

Attach a custom ProgressTracker to receive generation progress updates.

The runner calls ProgressTracker::finish on successful completion. Trackers that need error or panic cleanup should use Drop as a fallback. See crate::tpch_cli::progress for the full contract and examples.

pub fn build(self) -> TpchGenerator

Build the TpchGenerator with the configured settings.

Trait Implementations

impl Clone for TpchGeneratorBuilder

fn clone(&self) -> TpchGeneratorBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TpchGeneratorBuilder

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

Formats the value using the given formatter.

impl Default for TpchGeneratorBuilder

fn default() -> Self

Returns the “default value” for a type.