Module expression 

Structs

CompileContext

Compilation context

CompiledEvaluator

Compiled expression evaluator using the Expression VM.

ExecuteContext

Execution context for the VM

ExprCompiler

Expression compiler

ExprVM

ExpressionEval

Lightweight expression evaluator using direct VM execution.

JoinFilter

A filter for join condition evaluation between two rows.

MultiExpressionEval

Evaluates multiple expressions efficiently (for SELECT projections).

Program

Compiled expression program

RowFilter

A lightweight, thread-safe row filter for closure-based filtering.

Enums

CompileError

Compilation error

Constant

Constant value stored in the program

Op

Expression VM Operation

Traits

SubqueryExecutor

Trait for executing subqueries

Functions

clear_program_cache

Clear the program cache. Call on database drop to release memory.

compile_expression

Compile an expression to a program for a given column schema.

compile_expression_with_context

Compile an expression with full context (parameters, outer columns, etc.)

compute_expression_hash

Compute a u64 hash of an expression without string allocation. This is O(expression_size) and avoids Debug formatting overhead. Use this for cache keys instead of format!(“{:?}”, expr). Uses FxHasher which is 2-5x faster than SipHash for small keys.

is_non_foldable_function

Check if a function must NOT be constant-folded.

try_eval_constant_expr

Evaluate a column-free AST expression to a concrete Value at query time.

Type Aliases

SharedProgram

Shared program reference for zero-copy caching