Re: hstore - Implementation and performance issues around its operators

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От Alexander Korotkov
Тема Re: hstore - Implementation and performance issues around its operators
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Msg-id BANLkTikLbcU_Wm-532xEke7VzmxhX+BdMw@mail.gmail.com
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Ответ на hstore - Implementation and performance issues around its operators  (Stefan Keller <sfkeller@gmail.com>)
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Hi!

On Tue, Jun 21, 2011 at 12:04 PM, Stefan Keller <sfkeller@gmail.com> wrote:
1. Obviously the '@>' has to be used in order to let use the GiST index.
Why is the '->' operator not supported by GiST ('->' is actually
mentioned in all examples of the doc.)?

I believe it's an architecture problem. You actually need not '->' operator to be supported by GiST but "column -> 'field_name' = value" expression. Probably, I'm missing something, but I think supporting of this require significant catalog changes.

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With best regards,
Alexander Korotkov.  

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