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::canonical_scalar_from_plan_value;

pub use conversion::RangeSelectRows;

pub use conversion::extract_rows_from_range;

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 table_scan::TableScanProjectionSpec;

pub use table_scan::build_table_scan_plan;

pub use traversal::TransformFrame;

pub use traversal::Traversable;

pub use traversal::traverse_postorder;

pub use plan_graph::*;

pub use plans::*;

Modules

canonical

Canonical scalar helpers for 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.

table_scan

traversal

Generic iterative traversal utilities for AST-like structures.

validation

Shared validation utilities for plan construction.

Structs

CanonicalRow

Canonical row representation used for hashing and equality checks.

DomainProgram

OwnedFilter

ProgramCompiler

ProgramSet

Enums

CanonicalScalar

Canonical scalar value with stable hashing semantics.

DomainOp

EvalOp

OwnedOperator

Functions

add_interval_to_date32

Add an interval to a Date32 value, returning the adjusted Date32 days.

normalize_predicate

parse_date32_literal

Parse a SQL DATE 'YYYY-MM-DD' literal into the Arrow Date32 encoding (days since the Unix epoch).

parse_interval_literal

subtract_interval_from_date32

Subtract an interval from a Date32 value, returning the adjusted days.

Type Aliases

DomainProgramId