Pavel Stehule <pavel.stehule@gmail.com> writes:
> 2012/9/20 Tom Lane <tgl@sss.pgh.pa.us>:
>> I'm not sure what the performance tradeoffs would be ---
>> some things would get faster and others slower, probably, since field
>> access would be more work but conversion to/from HeapTuple would get far
>> cheaper.
> when fields are fix length, then field's update is significantly
> faster then when RECORD is used
[ shrug... ] Maybe not if we put a little effort into it. It would be
interesting to consider using a TupleTableSlot instead of a bare
HeapTuple for instance. In any case you're ignoring the point that
other things will get faster.
regards, tom lane