risingwave_
frontend
2.2.0-alpha
Module over_
window_
to_
topn_
rule
Module Items
Structs
Functions
In risingwave_
frontend::
optimizer::
rule
risingwave_frontend
::
optimizer
::
rule
Module
over_window_to_topn_rule
Copy item path
source
Structs
§
Over
Window
ToTopN
Rule
Transforms the following pattern to group
TopN
(No Ranking Output).
Functions
§
handle_
rank_
preds
🔒
Returns
None
if the conditions are too complex or invalid.
Some((limit, offset))
otherwise.