Struct CompositeInputs 

pub struct CompositeInputs { /* private fields */ }

Logical and optimized inputs retain their own descriptors and values across rollback. Reading either plan projects a copy without rerunning already-folded expressions.

Implementations

impl CompositeInputs

pub fn capture( plan: &UnifiedPlan, types: &dyn FunctionTypeResolver, ) -> Result<Self, SQLError>

pub fn project_logical( &self, plan: &UnifiedPlan, types: &dyn FunctionTypeResolver, ) -> Result<Option<UnifiedPlan>, SQLError>

Project original inputs before result analysis and optimization without changing the retained source.

pub fn project_for_generic( &self, plan: &UnifiedPlan, types: &dyn FunctionTypeResolver, ) -> Result<Option<UnifiedPlan>, SQLError>

Update attribute names and field bindings for optimization while retaining the original scalar datums in the reusable executable. Interpreting a raw byte as boolean is not reversible, so an interpreted value cannot replace its source in a cache.

pub fn with_generic( &self, plan: &UnifiedPlan, types: &dyn FunctionTypeResolver, ) -> Result<Self, SQLError>

Record the names and attribute numbers of the actual generic plan with the types of its retained scalar datums. Folded scalar results have no remaining composite dependency.

pub fn generic_requires_rebuild( &self, types: &dyn FunctionTypeResolver, ) -> Result<bool, SQLError>

Attribute numbers cannot be reused. A number present at logical analysis, absent at optimization, and live again therefore comes from catalog undo; discard constants folded under the undone descriptor.

pub fn project_generic( &self, plan: &UnifiedPlan, types: &dyn FunctionTypeResolver, ) -> Result<Option<UnifiedPlan>, SQLError>

Adapt a copy of the cached plan, preserving constants already folded by its original optimization and the source fields needed after rollback.

Trait Implementations

impl Clone for CompositeInputs

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CompositeInputs

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

Formats the value using the given formatter.

impl Default for CompositeInputs

fn default() -> Self

Returns the “default value” for a type.