Emits a Filter by Expression as ->filter(<lambda>) (PLAN §11.11), the
lambda the engine's JSON, marked with the node, so an engine error inside
it lands on the node. After a Partition it reads the let the run binds
the window with (§8.6), so a condition on a window column runs after the
window. Its patterns are refused where the editor refuses them
(getEmitPatternProblem, §11.11, §11.14).
Emits a Filter by Expression as
->filter(<lambda>)(PLAN §11.11), the lambda the engine's JSON, marked with the node, so an engine error inside it lands on the node. After a Partition it reads theletthe run binds the window with (§8.6), so a condition on a window column runs after the window. Its patterns are refused where the editor refuses them (getEmitPatternProblem, §11.11, §11.14).The filter must be valid for its input schema.