On Wed, Sep 20, 2017 at 4:25 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Andrey Borodin <x4mmm@yandex-team.ru> writes: > You mentioned that probably there cannot be TOASTed values in the index. > I need to settle this question in more deterministic way. > Can you point where to look at the code or who to ask: > Can there be TOASTed values in index tuples?
Yes. We don't allow out-of-line values, but we do allow compressed and short-header values.
If you don't believe me, look at index_form_tuple().
OK.
So GiST opclass should either implement decompress method with detoasting or detoast every input key in all other methods.
BTW, this comment looks still invalid for me...
#define SIGLENINT 4/* >122 => key will toast, so very slow!!! */
