Thank you! now I understand it... On Wed, Mar 2, 2011 at 7:35 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Marios Vodas <mvo...@gmail.com> writes: > > I have developed some custom composite and base types in PostgreSQL 9 > which > > you can find in the code I provide below. > > I compile my C library using GCC 4.5 under Linux and Visual Studio 2010 > > under Windows. > > > The problem is when I run this command: *SELECT to_composite('((1, 2), > (3, > > 4))'::m_segment_base)*. > > This is the result I get in Windows and Linux respectively: > > Windows: "("(1,2)","(3,4)")" > > Linux: "("(1,)",)" > > You're passing a single isnull flag to heap_form_tuple calls that are > expecting arrays of two flags ... and even the one value that's there > according to the code isn't being initialized, so it's remarkable that > this code works at all on any platform. > > regards, tom lane >