Module query 

Query processing pipeline.

This module provides the complete query execution pipeline:

• Translators: Convert query languages (GQL, Cypher, SPARQL, etc.) to logical plans
• Binder: Semantic validation and variable resolution
• Optimizer: Plan optimization (filter pushdown, join reorder, etc.)
• Planner: Convert logical plans to physical operators
• Executor: Execute physical operators and collect results
• Processor: Unified interface orchestrating the full pipeline
• Cache: LRU cache for parsed and optimized query plans

Re-exports

pub use cache::CacheKey;

pub use cache::CacheStats;

pub use cache::CachingQueryProcessor;

pub use cache::QueryCache;

pub use executor::Executor;

pub use optimizer::CardinalityEstimator;

pub use optimizer::Optimizer;

pub use plan::LogicalExpression;

pub use plan::LogicalOperator;

pub use plan::LogicalPlan;

pub use planner::PhysicalPlan;

pub use planner::Planner;

pub use planner::convert_aggregate_function;

pub use planner::convert_binary_op;

pub use planner::convert_filter_expression;

pub use planner::convert_unary_op;

pub use processor::QueryLanguage;

pub use processor::QueryParams;

pub use processor::QueryProcessor;

pub use gql_translator::translate as translate_gql;

Modules

binder

Semantic binding and type checking.

cache

Query cache for parsed and planned queries.

executor

Query executor.

gql_translator

GQL to LogicalPlan translator.

optimizer

Query optimizer.

plan

Logical query plan representation.

planner

Logical query planner.

processor

Query processor that orchestrates the query pipeline.