Crate llkv_plan 

Planner data structures shared between SQL parsing and execution.

The crate exposes:

• plan_graph for the serialized DAG representation exchanged with tooling.
• plans for high-level logical plan structures emitted by the SQL layer.
• validation helpers that enforce naming and schema invariants while plans are being assembled.
• conversion utilities for converting SQL AST nodes to Plan types.
• traversal generic iterative traversal utilities for deeply nested ASTs.

Modules are re-exported so downstream crates can use llkv_plan::* when they only need a subset of the functionality.

Re-exports

pub use canonical::CanonicalRow;

pub use canonical::CanonicalScalar;

pub use conversion::RangeSelectRows;

pub use conversion::extract_rows_from_range;

pub use conversion::plan_value_from_sql_expr;

pub use conversion::plan_value_from_sql_value;

pub use subquery_correlation::SUBQUERY_CORRELATED_PLACEHOLDER_PREFIX;

pub use subquery_correlation::SubqueryCorrelatedColumnTracker;

pub use subquery_correlation::SubqueryCorrelatedTracker;

pub use subquery_correlation::subquery_correlated_placeholder;

pub use traversal::TransformFrame;

pub use traversal::Traversable;

pub use traversal::traverse_postorder;

pub use plan_graph::*;

pub use plans::*;

Modules

canonical

Canonical scalar representations shared across planner consumers.

conversion

Conversion utilities from SQL AST to Plan types.

plan_graph

Planner graph intermediate representation (IR).

plans

Logical query plan structures for LLKV.

subquery_correlation

Correlated subquery bookkeeping shared across SQL planning and execution.

traversal

Generic iterative traversal utilities for AST-like structures.

validation

Shared validation utilities for plan construction.