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20d3399c71
The main difference between = and != is how null values are handled. SQLite passes a flag "NULLEQ" to Eq and Ne to disambiguate that. In the presence of that flag, NULL = NULL. Some prep work is done to make sure we can pass a flag instead of a boolean to Eq and Ne. I looked into the bitflags crate but got a bit scared with the list of dependencies. Warning: The following query produces a different result for Limbo: ``` select * from demo where value is null or id == 2; ``` I strongly suspect the issue is with the OR implementation, though. The bytecode generated is quite different. Reviewed-by: Jussi Saurio <jussi.saurio@gmail.com> Closes #847