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If they are truly identical, then you must use the hidden 'oid' column to 
differentiate the two. No need to peek at the oid, just do this:

DELETE FROM test WHERE oid = (SELECT oid FROM test WHERE column_id=5 LIMIT 1);

- --
Greg Sabino Mullane [EMAIL PROTECTED]
PGP Key: 0x14964AC8 200301301006

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