Suppose I have a table T that has, among its columns, the fields X and Y,
where Y is an integer, and multiple rows with the same value of X are
possible.  I want to select the rows corresponding to the greatest values of
Y for each value of X.  E.g. suppose that T is
X Y Z
a  1 eenie
a  3 meenie
a  2 miny
b  4 moe
b  0 catch

...the result of the desired query would be

a  3 meenie
b  4 moe

TIA!

Kynnjo

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