Struct QueryHintsBuilder 

pub struct QueryHintsBuilder { /* private fields */ }

Builder for QueryHints

Implementations

impl QueryHintsBuilder

pub fn new() -> Self

Create new builder

pub fn with_join_hint(self, hint: JoinHint) -> Self

Add a join hint

pub fn hash_join(self, variables: Vec<&str>) -> Self

Add hash join hint for variables

pub fn merge_join(self, variables: Vec<&str>) -> Self

Add merge join hint for variables

pub fn nested_loop_join(self, variables: Vec<&str>) -> Self

Add nested loop join hint for variables

pub fn with_index_hint(self, hint: IndexHint) -> Self

Add an index hint

pub fn use_index(self, pattern_id: &str, index_name: &str) -> Self

Force use of a specific index

pub fn ignore_index(self, pattern_id: &str, index_name: &str) -> Self

Ignore a specific index

pub fn with_cardinality_hint(self, hint: CardinalityHint) -> Self

Add a cardinality hint

pub fn cardinality(self, variable: &str, cardinality: u64) -> Self

Override cardinality for a variable

pub fn with_parallelism(self, hint: ParallelismHint) -> Self

Set parallelism hint

pub fn parallel(self, threads: usize) -> Self

Enable parallel execution with specified threads

pub fn no_parallel(self) -> Self

Disable parallel execution

pub fn with_materialization_hint(self, hint: MaterializationHint) -> Self

Add materialization hint

pub fn timeout(self, duration: Duration) -> Self

Set query timeout

pub fn timeout_secs(self, secs: u64) -> Self

Set timeout in seconds

pub fn with_memory_hint(self, hint: MemoryHint) -> Self

Set memory hint

pub fn memory_limit(self, bytes: usize) -> Self

Set memory limit in bytes

pub fn prefer_streaming(self) -> Self

Prefer streaming execution

pub fn with_cache_hint(self, hint: CacheHint) -> Self

Set cache hints

pub fn no_cache(self) -> Self

Bypass query cache

pub fn with_join_order(self, hint: JoinOrderHint) -> Self

Set join order hint

pub fn fixed_join_order(self, order: Vec<&str>) -> Self

Force specific join order

pub fn with_filter_hint(self, hint: FilterHint) -> Self

Add filter hint

pub fn directive(self, key: &str, value: &str) -> Self

Add custom directive

pub fn build(self) -> QueryHints

Build the QueryHints

Trait Implementations

impl Debug for QueryHintsBuilder

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

Formats the value using the given formatter.

impl Default for QueryHintsBuilder

fn default() -> QueryHintsBuilder

Returns the “default value” for a type.