Re: PostgreSQL 9.5 and PL/Ruby install problem(Centos 6 64 bit)

Hanan Brener <hbrener(at)allot(dot)com> writes:
> Installing on Centos 6 PostgreSQL 9.5 (64 bit) ; ruby 1.8
> and get from https://pkgs.org/centos-6/epel-x86_64/postgresql-plruby-0.5.3-4.el6.x86_64.rpm.html - plruby libraries(postgresql-plruby-0.5.3-4.el6.x86_64).
> Additional installed postgresql95-libs (postgresql95-libs-9.5.2-1PGDG.rhel6.x86_64)
> Trying add plruby to PostgreSQL -
> create function plruby_call_handler() returns language_handler
> as '/usr/lib64/ruby/site_ruby/1.8/x86_64-linux/plruby.so'
> language 'c';
> The follows error appears - could not load library "/usr/lib64/ruby/site_ruby/1.8/x86_64-linux/plruby.so": /usr/lib64/ruby/site_ruby/1.8/x86_64-linux/plruby.so: undefined symbol: FunctionCall3

Seems like you've got a broken build of plruby there. FunctionCall3 has
been a macro, not a real function, for quite a long time. AFAICS this
error would only be possible if plruby had been compiled against postgres
header files from 9.0 or before, which would be a packaging mistake.
Suggest complaining to whoever the package builder is.

regards, tom lane