Struct LookupTableRegistry 

pub struct LookupTableRegistry { /* private fields */ }

Thread-safe registry of lookup table entries (snapshot or partial).

The db layer populates this when CREATE LOOKUP TABLE executes; the LookupJoinExtensionPlanner reads it at physical plan time.

Implementations

impl LookupTableRegistry

pub fn new() -> Self

Creates an empty registry.

pub fn register(&self, name: &str, snapshot: LookupSnapshot)

Registers or replaces a lookup table snapshot.

Panics

Panics if the internal lock is poisoned.

pub fn register_partial(&self, name: &str, state: PartialLookupState)

Registers or replaces a partial (on-demand) lookup table.

Panics

Panics if the internal lock is poisoned.

pub fn register_versioned(&self, name: &str, state: VersionedLookupState)

Registers or replaces a versioned (temporal) lookup table.

Panics

Panics if the internal lock is poisoned.

pub fn unregister(&self, name: &str)

Removes a lookup table from the registry.

Panics

Panics if the internal lock is poisoned.

pub fn get(&self, name: &str) -> Option<Arc<LookupSnapshot>>

Returns the current snapshot for a table, if registered as a snapshot.

Panics

Panics if the internal lock is poisoned.

pub fn get_entry(&self, name: &str) -> Option<RegisteredLookup>

Returns the registered lookup entry (snapshot, partial, or versioned).

Panics

Panics if the internal lock is poisoned.

Trait Implementations

impl Default for LookupTableRegistry

fn default() -> LookupTableRegistry

Returns the “default value” for a type.