Module compiled 

Compiled expression evaluation

Compiles an Expression tree once into a closure tree that evaluates against a raw row slice. The compiled tree eliminates the per-row recursive match over the full expression enum, pre-resolves variable references to slot IDs and function references to the global registry at compile time, and folds constant subtrees inline.

Nodes that require the full runtime context (subqueries, predicates, labels, list comprehensions, aggregates, …) are kept as a fallback node that delegates to the original per-row interpreter with a BorrowedRowContext, preserving the exact semantics of the scalar evaluator.

Enums

ColumnarValue

A columnar value: either a constant scalar (never materialized as a column) or a full column of values.

CompiledExpr

Compiled closure-tree node.

Functions

compiled_eval_enabled

Whether compiled expression evaluation is currently enabled.

set_compiled_eval_enabled

Enable or disable the compiled expression evaluation path.