Re: index-only scans

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От Alexander Korotkov
Тема Re: index-only scans
Дата
Msg-id CAPpHfduLcQ7KR5ZGweR6E9PuiWKVmP7BsNfxzqrZJOF32+w7fA@mail.gmail.com
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Ответ на Re: index-only scans  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: index-only scans
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On Tue, Oct 11, 2011 at 5:22 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
I haven't thought as far ahead as how we might get the information
needed for a per-opclass flag.  A syntax addition to CREATE OPERATOR
CLASS might be the only way.
Shouldn't it be implemented through additional interface function? There are situations when restoring of original tuple requires some transformation. For example, in point_ops we store box in the leaf index tuple, while point can be easily restored from box.

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With best regards,
Alexander Korotkov. 

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