Enum ReadPathMode 

pub enum ReadPathMode {
    Auto,
    Point,
    Full,
}

Forced SELECT access path (issue #1918).

A test/debug control that removes doubt about which access path serves a SELECT. It never changes value decoding, tombstone/timestamp reconciliation, or WRITETIME/TTL semantics — it governs routing only — and is chosen exclusively from explicit operator config/env, never inferred from data bytes (no-heuristics mandate). Set programmatically via QueryConfig::forced_read_path or per-process via the CQLITE_READ_PATH environment variable (auto|point|full, case-insensitive), with config taking precedence over env. Not a performance recommendation.

Variants

Auto

Today’s behavior: the classifier chooses point-vs-full per query. An unset knob is byte-for-byte this mode.

Point

Force a genuinely partition-targeted lookup. Fails closed with crate::Error::ForcedReadPathUnavailable whenever the executor would not run a partition-targeted lookup — never a silent full scan.

Full

Force the full-scan + reconciliation path regardless of classification, recording crate::query::access_path::FallbackReason::ForcedFullScan.

Trait Implementations

impl Clone for ReadPathMode

fn clone(&self) -> ReadPathMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ReadPathMode

impl Debug for ReadPathMode

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

Formats the value using the given formatter.

impl Default for ReadPathMode

fn default() -> ReadPathMode

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ReadPathMode

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ReadPathMode

impl PartialEq for ReadPathMode

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ReadPathMode

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ReadPathMode