THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Note that if the input schema also includes a regular column named "window_start", the rewriting will result in a conflict with the additional column 'window_start' produced by Window TVF. For more details, please refer to FLINK-25499[6]. To address this issue, we will introduce a configuration option named "table.window-additional-columns.prefix" that allows users to provide a special prefix for the three columns generated by the window TVF.
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