Struct datafusion_optimizer::optimizer::OptimizerContext

pub struct OptimizerContext { /* private fields */ }

A standalone OptimizerConfig that can be used independently of DataFusion’s config management

Implementations

impl OptimizerContext

pub fn new() -> Self

Create optimizer config

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

Specify whether to enable the filter_null_keys rule

pub fn with_query_execution_start_time( self, query_execution_tart_time: DateTime<Utc> ) -> Self

Specify whether the optimizer should skip rules that produce errors, or fail the query

pub fn with_skip_failing_rules(self, b: bool) -> Self

Specify whether the optimizer should skip rules that produce errors, or fail the query

pub fn with_max_passes(self, v: u8) -> Self

Specify how many times to attempt to optimize the plan

Trait Implementations

impl Debug for OptimizerContext

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

Formats the value using the given formatter.

impl Default for OptimizerContext

fn default() -> Self

Create optimizer config

impl OptimizerConfig for OptimizerContext

fn query_execution_start_time(&self) -> DateTime<Utc>

Return the time at which the query execution started. This time is used as the value for now()

fn alias_generator(&self) -> Arc<AliasGenerator>

Return alias generator used to generate unique aliases for subqueries

fn options(&self) -> &ConfigOptions