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LookupJoinRewriteRule

laminar_sql::planner::lookup_join

Struct LookupJoinRewriteRule 

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pub struct LookupJoinRewriteRule { /* private fields */ }
Expand description

Rewrites standard JOIN nodes that reference a lookup table into LookupJoinNode extension nodes.

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impl LookupJoinRewriteRule

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pub fn new(lookup_tables: HashMap<String, LookupTableInfo>) -> Self

Creates a new rewrite rule with the given set of registered lookup tables.

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impl Debug for LookupJoinRewriteRule

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

Formats the value using the given formatter. Read more
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impl OptimizerRule for LookupJoinRewriteRule

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fn name(&self) -> &'static str

A human readable name for this optimizer rule
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fn apply_order(&self) -> Option<ApplyOrder>

How should the rule be applied by the optimizer? See comments on [ApplyOrder] for details. Read more
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fn rewrite( &self, plan: LogicalPlan, _config: &dyn OptimizerConfig, ) -> Result<Transformed<LogicalPlan>>

Try to rewrite plan to an optimized form, returning Transformed::yes if the plan was rewritten and Transformed::no if it was not.
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fn supports_rewrite(&self) -> bool

👎Deprecated since 47.0.0:

This method is no longer used

Does this rule support rewriting owned plans (rather than by reference)?

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