Manu Zhang created GEARPUMP-316:
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Summary: Don't enforce groupBy after window
Key: GEARPUMP-316
URL: https://issues.apache.org/jira/browse/GEARPUMP-316
Project: Apache Gearpump
Issue Type: Sub-task
Reporter: Manu Zhang
Return a normal Stream instead of WindowStream on window function. Window
function defines a boundary (window) for elements and the following operations
should fall in corresponding boundaries. The boundary should not change until a
new window function is defined. The default boundary is the {{GlobalWindows}}.
This means there will be a window context for each underlying task. Elements
are emitted in terms of the trigger semantics.
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