>
> DB[:table].update{ :a << :a + 1 }
> -> UPDATE table SET a = a + 1
>
These work:
>> DB[:table].update_sql( :a => (:a+1) )
=> "UPDATE `table` SET `a` = (`a` + 1)"
>> DB[:table].update_sql( :a => 'a+1'.lit )
=> "UPDATE `table` SET `a` = a+1"
Aman
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