> Recently, a new type of question has entered the database arena: what did this data look like last Tuesday?
This question has been answerable in Dolt for years now.
This question has been answerable in Dolt for years now.
Say you have one time series with CPU-core task switches:
T=1 task=A T=3, task=B, T=5 task=A, ...
... and another of CPU frequency changes ...
T=2 freq_hz=800, T=5 freq_hz=1200, T=6 freq_hz=900
How, in SQL, do you express the question "How many CPU cycles did each task use?"? Try to do it with more complex examples. You'll tear your hair out.
Having worked on this sort of data analysis quite a lot, I'm strongly of the opinion that SQL needs syntax, not just table-valued functions, for expressing questions about timelines.