hi all ,
I have seen some parts of pg documents to find more about hidden parts of
the table structures in pg( ie , hidden fields which are automaticaly added
to normal defined columns ... ) .
I have found it (from this list) that some of them are oid,xmax,xmin. Is
there any relative document on this issue? Is there more hiddden fields
adding to the tables?
thanks in advance
omid.
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