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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);
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Greg Sabino Mullane greg@turnstep.com
PGP Key: 0x14964AC8 200301301006
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