Enum CachedPlan 

pub enum CachedPlan {
    PkPointLookup(PkPointLookupPlan),
    SimpleFastPath(SimpleFastPathPlan),
    PkDelete(PkDeletePlan),
    Standard,
}

Cached execution plan for a prepared statement

Variants

PkPointLookup(PkPointLookupPlan)

Simple primary key point lookup SELECT [cols] FROM table WHERE pk_col = ? [AND pk_col2 = ? …]

SimpleFastPath(SimpleFastPathPlan)

Simple fast-path eligible query Caches the result of is_simple_point_query() check to avoid recomputing it on every execution.

PkDelete(PkDeletePlan)

Simple primary key DELETE DELETE FROM table WHERE pk_col = ? [AND pk_col2 = ? …]

Standard

Query doesn’t match any fast-path pattern Fall back to standard execution

Implementations

impl CachedPlan

pub fn is_fast_path(&self) -> bool

Check if this is a cacheable fast-path plan

Trait Implementations

impl Clone for CachedPlan

fn clone(&self) -> CachedPlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CachedPlan

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

Formats the value using the given formatter.