Module planner 

Query planning module for the Alopex SQL dialect.

This module provides:

• PlannerError: Error types for planning phase
• ResolvedType: Normalized type information for type checking
• TypedExpr: Type-checked expressions with resolved types
• LogicalPlan: Logical query plan representation
• NameResolver: Table and column reference resolution
• TypeChecker: Expression type inference and validation
• Planner: Main entry point for converting AST to LogicalPlan

Re-exports

pub use aggregate_expr::AggregateExpr;

pub use aggregate_expr::AggregateFunction;

pub use knn_optimizer::KnnPattern;

pub use knn_optimizer::SortDirection;

pub use knn_optimizer::detect_knn_pattern;

pub use logical_plan::JoinType;

pub use logical_plan::LogicalPlan;

pub use name_resolver::NameResolver;

pub use name_resolver::ResolvedColumn;

pub use type_checker::ScopedTable;

pub use type_checker::TypeChecker;

pub use typed_expr::ProjectedColumn;

pub use typed_expr::Projection;

pub use typed_expr::SortExpr;

pub use typed_expr::TypedAssignment;

pub use typed_expr::TypedExpr;

pub use typed_expr::TypedExprKind;

pub use types::ResolvedType;

Modules

aggregate_expr

knn_optimizer

logical_plan

Logical plan representation for query execution.

name_resolver

Name resolution for SQL queries.

type_checker

Type checking module for the Alopex SQL dialect.

typed_expr

Type-checked expression types for the planner.

types

Type definitions for the Alopex SQL planner.

Structs

PlannedStatement

Planning output used by server-side routing analysis.

Planner

The SQL query planner.

PlanningDiagnostic

SQL planning diagnostic attachment point for routing layers.

RoutingInput

SQL-owned input for routing decision composition.

TableReference

A table reference visible at the SQL planning boundary.

TableReferenceExtractor

Extracts physical table references from SQL-owned planner structures.

Enums

PlannerError

Planner errors for the Alopex SQL dialect.

PlanningDiagnosticSeverity

Severity for planning diagnostics.

TableReferenceAccess

Access class for a table reference.

TableReferenceSource

Where a table reference was extracted from.

Functions

plan_sql_for_routing

Parse and plan SQL without executing it, returning SQL-owned routing input.

plan_statement_for_routing

Plan a parsed statement without executing it, returning SQL-owned routing input.