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Except they don't consistently behave that way. If NULL means "unknown", why do they show up in outer joins, or when you SUM an empty table?
by int_19h 2y ago
Except they don't consistently behave that way. If NULL means "unknown", why do they show up in outer joins, or when you SUM an empty table?
- cglace 2y agoThe most annoying is having to order by DESC NULLS LAST to get the largest value from an aggregation.