Module sql::plan::transform_ast

Transformations of SQL ASTs.

Most query optimizations are performed by the dataflow layer, but some are much easier to perform in SQL. Someday, we’ll want our own SQL IR, but for now we just use the parser’s AST directly.

Structs

Desugarer

Removes syntax sugar to simplify the planner.

FuncRewriter

Functions

run_transforms

transform_expr

transform_query