Array values and foreign keys

Is there a way to define a foreign key for the values of an array?

For example, if table T1 is having a colum A which is defined as integer[] can I define a foreign key in order to force each value to be a pointer (index) to a row in a table T2?

If yes, how? Is there any shortcomings to this approach?

Thanks,

Daniel Savard

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Daniel Savard
dsavard(at)cids(dot)ca