4paradigm / 4paradigm/OpenMLDB
Support rows_range Window to slide with determined order
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- C++
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Description
**Is your feature request related to a problem? Please describe.**
OpenMLDB supports `ROWS_RANGE` syntax to define a window sliding by rows. However, when the dataset contains multiple rows sharing the same order value, the corresponding window rows will be variant since the random order of these rows.
In this issue, we are going to perform a window slide in a determined order so that the window and window aggregation results will be identical no matter how many times we perform window computation.
**Describe the solution you'd like**
- Assigned a determined row_id to the data rows
- Window slide based on the order column and the row_id automatically.
- ordered id should be associated with the online data coming order.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
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