columns refered to in view

I have created a view with this query:

CREATE VIEW testview AS SELECT table.column AS col1, table2.column AS
coll2 FROM table, table2;

Later on, i want to get the table and column name that a field refers
to in this view. In other words i want to get the table and column that
the column 'col1' refers to. Im looking for 'table.column'. How can i
get this information?

thanks!


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Alexander Cohen
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