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Comparison with composite to optimize performance? #182

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thojanssens opened this issue Jan 24, 2023 · 0 comments

thojanssens commented Jan 24, 2023 •

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If I'm not wrong, currently the where condition for the cursor values is built in this format:

where cursor_field1 > x and cursor_field2 > y

But we could use a composite value (when the fields are compared with same operator)?

where (cursor_field1, cursor_field2) > (x, y)

A composite is ordered left-to-right with further right fields only breaking ties.

So I think it is faster as the fields on the right are only compared in case of ties?

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