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.
