Struct ExecutionConfig 

pub struct ExecutionConfig {
    pub max_batch_size: usize,
    pub collect_stats: bool,
    pub memory_limit: usize,
    pub max_rows_in_memory: usize,
}

Configuration options for query execution.

Fields

max_batch_size: usize

Maximum number of rows to buffer in memory.

collect_stats: bool

Whether to collect detailed statistics.

memory_limit: usize

Memory limit in bytes (0 for no limit).

max_rows_in_memory: usize

Maximum number of rows that operators can materialize in memory.

This limit applies to blocking operators like sort, join, and aggregate that need to collect rows before producing output. When an operator exceeds this limit, it returns a QueryTooLarge error.

Set to 0 to disable the limit (not recommended for production). Default: 1,000,000 rows.

Implementations

impl ExecutionConfig

pub const fn new() -> Self

Creates a new configuration with defaults.

pub const fn with_batch_size(self, size: usize) -> Self

Sets the maximum batch size.

pub const fn with_stats(self) -> Self

Enables statistics collection.

pub const fn with_memory_limit(self, limit: usize) -> Self

Sets the memory limit.

pub const fn with_max_rows_in_memory(self, limit: usize) -> Self

Sets the maximum rows that can be materialized in memory.

This limit applies to blocking operators like sort, join, and aggregate. Set to 0 to disable the limit (not recommended for production).

Trait Implementations

impl Clone for ExecutionConfig

fn clone(&self) -> ExecutionConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExecutionConfig

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

Formats the value using the given formatter.

impl Default for ExecutionConfig

fn default() -> Self

Returns the “default value” for a type.