Error in Adding All Tables

Hi freinds,
i wanted to add my all tables once in MFC application,

i have a databank,which has 11 tables and i want to add them all togather.

 After Adding all tables, it shows me always this errors by debugging.

ERROR: column reference "ctid" is ambiguous;
Error while executing the query

i need help from u ppl. I am using Visual C++ 2005 and postgresql 8.3.

thanks
Sheikh

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