This will allow enums to be used in exclusion constraints.
The code uses the new CallerFInfoFunctionCall infrastructure in fmgr,
and the support for it added to btree_gist in commit 393bb504d7.
Reviewed by Tom Lane and Anastasia Lubennikova
Discussion: http://postgr.es/m/56EA8A71.8060107@dunslane.net
- Fix wrong index results on text, char, varchar for multibyte strings
- Fix some SIGFPE signals
- Add support for infinite timestamps
- Because of locale settings, btree_gist can not be a prefix index anymore (for text).
Each node holds now just the lower and upper boundary.