Trait SubqueryExecutorExt 

pub trait SubqueryExecutorExt: SubqueryHost {
    // Provided methods
    fn process_where_subqueries(
        &self,
        expression: &Expression,
        context: &ExecutionContext,
    ) -> Result<Expression> { ... }
    fn execute_exists_subquery(
        &self,
        statement: &SelectStatement,
        context: &ExecutionContext,
    ) -> Result<bool> { ... }
    fn try_process_select_subqueries(
        &self,
        columns: &[Expression],
        context: &ExecutionContext,
    ) -> Result<Option<Vec<Expression>>> { ... }
    fn process_correlated_expression(
        &self,
        expression: &Expression,
        context: &ExecutionContext,
    ) -> Result<Expression> { ... }
    fn process_correlated_where(
        &self,
        expression: &Expression,
        context: &ExecutionContext,
    ) -> Result<Expression> { ... }
    fn should_use_index_nested_loop_for_anti_join(
        &self,
        info: &SemiJoinInfo,
        outer_limit: Option<i64>,
    ) -> bool { ... }
    fn execute_semi_join_optimization(
        &self,
        info: &SemiJoinInfo,
        context: &ExecutionContext,
    ) -> Result<CompactArc<ValueSet>> { ... }
    fn execute_anti_join(
        &self,
        info: &SemiJoinInfo,
        outer_rows: CompactArc<Vec<Row>>,
        outer_columns: &[String],
        context: &ExecutionContext,
    ) -> Result<RowVec> { ... }
    fn try_optimize_exists_to_semi_join(
        &self,
        expression: &Expression,
        context: &ExecutionContext,
        outer_tables: &[String],
        outer_limit: Option<i64>,
    ) -> Result<Option<Expression>> { ... }
    fn try_optimize_in_to_semi_join(
        &self,
        expression: &Expression,
        context: &ExecutionContext,
        outer_tables: &[String],
    ) -> Result<Option<Expression>> { ... }
    fn has_subqueries(expression: &Expression) -> bool
       where Self: Sized { ... }
    fn has_correlated_subqueries(expression: &Expression) -> bool
       where Self: Sized { ... }
    fn has_correlated_select_subqueries(columns: &[Expression]) -> bool
       where Self: Sized { ... }
    fn is_subquery_correlated(statement: &SelectStatement) -> bool
       where Self: Sized { ... }
    fn try_extract_not_exists_info(
        expression: &Expression,
        outer_tables: &[String],
    ) -> Option<SemiJoinInfo>
       where Self: Sized { ... }
    fn collect_outer_table_names(table: &Option<Box<Expression>>) -> Vec<String>
       where Self: Sized { ... }
}

Internal call surface between subquery traversal and the SELECT owner.

Provided Methods

fn process_where_subqueries( &self, expression: &Expression, context: &ExecutionContext, ) -> Result<Expression>

fn execute_exists_subquery( &self, statement: &SelectStatement, context: &ExecutionContext, ) -> Result<bool>

fn try_process_select_subqueries( &self, columns: &[Expression], context: &ExecutionContext, ) -> Result<Option<Vec<Expression>>>

fn process_correlated_expression( &self, expression: &Expression, context: &ExecutionContext, ) -> Result<Expression>

fn process_correlated_where( &self, expression: &Expression, context: &ExecutionContext, ) -> Result<Expression>

fn should_use_index_nested_loop_for_anti_join( &self, info: &SemiJoinInfo, outer_limit: Option<i64>, ) -> bool

fn execute_semi_join_optimization( &self, info: &SemiJoinInfo, context: &ExecutionContext, ) -> Result<CompactArc<ValueSet>>

fn execute_anti_join( &self, info: &SemiJoinInfo, outer_rows: CompactArc<Vec<Row>>, outer_columns: &[String], context: &ExecutionContext, ) -> Result<RowVec>

fn try_optimize_exists_to_semi_join( &self, expression: &Expression, context: &ExecutionContext, outer_tables: &[String], outer_limit: Option<i64>, ) -> Result<Option<Expression>>

fn try_optimize_in_to_semi_join( &self, expression: &Expression, context: &ExecutionContext, outer_tables: &[String], ) -> Result<Option<Expression>>

fn has_subqueries(expression: &Expression) -> bool

where Self: Sized,

fn has_correlated_subqueries(expression: &Expression) -> bool

where Self: Sized,

fn has_correlated_select_subqueries(columns: &[Expression]) -> bool

where Self: Sized,

fn is_subquery_correlated(statement: &SelectStatement) -> bool

where Self: Sized,

fn try_extract_not_exists_info( expression: &Expression, outer_tables: &[String], ) -> Option<SemiJoinInfo>

where Self: Sized,

fn collect_outer_table_names(table: &Option<Box<Expression>>) -> Vec<String>

where Self: Sized,

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<T: SubqueryHost + ?Sized> SubqueryExecutorExt for T