perf: Avoid coalesce for between
filters (backport #26531)
#26533
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Between operator never needs to check for null.
Explanation: Consider SQL ->
COLUMN between X and Y
Actual computation:
Since Y and X can't be null, null value in column will never match this filter, so coalesce is extra cost that prevents index usage.
Same logic applies for
DATETIME_FIELD > X
, as X is not null, DATETIME_FIELD will never match the filter if it's null, so no need check forifnull
.This is an automatic backport of pull request #26531 done by Mergify.