Enum StatementCacheMode 

pub enum StatementCacheMode {
    Named,
    Disabled,
}

Statement cache behavior.

Controls whether the driver caches prepared statements with server-side names (s_{hash}) or uses unnamed statements for every query.

Variants

Named

Named prepared statements, cached and reused (default).

Best performance for direct connections. Each unique SQL text is prepared once and reused across subsequent calls.

Disabled

Unnamed statements only — compatible with pgbouncer transaction mode.

Every query sends Parse+Bind+Execute with the unnamed statement (""). Slightly slower (extra Parse per query) but works with connection poolers that use transaction-level pooling (pgbouncer, PgCat).

Trait Implementations

impl Clone for StatementCacheMode

fn clone(&self) -> StatementCacheMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StatementCacheMode

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

Formats the value using the given formatter.

impl Default for StatementCacheMode

fn default() -> StatementCacheMode

Returns the “default value” for a type.

impl PartialEq for StatementCacheMode

fn eq(&self, other: &StatementCacheMode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for StatementCacheMode

impl Eq for StatementCacheMode

impl StructuralPartialEq for StatementCacheMode