# Ugly bug with one-click installer and postgres-pr

**URL:** <https://www.ruby-forum.com/t/ugly-bug-with-one-click-installer-and-postgres-pr/70033>\
**Category:** Ruby\
**Created:** [February 18, 2006, 4:51am UTC](https://www.ruby-forum.com/t/ugly-bug-with-one-click-installer-and-postgres-pr/70033 "2006-02-18T04:51:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![danielb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c57346/32.png) [@danielb](https://www.ruby-forum.com/u/danielb)\
**Post date:** [February 18, 2006, 4:51am UTC](https://www.ruby-forum.com/t/ugly-bug-with-one-click-installer-and-postgres-pr/70033/1 "2006-02-18T04:51:30Z")

</div>

Windows XP Pro  
dbi 0.0.23  
postgres-pr 0.4.0  
Ruby one-click installer, p3

I’m getting a rather ugly bug when I try to connect to a PostgreSQL  
database using the one click installer. Any ideas?

# If I don’t include the username

C:\ruby2\src\ruby-dbi-all\>c:\ruby2\bin\irb  
irb(main):001:0\> VERSION  
=\> “1.8.4”  
irb(main):002:0\> require “dbi”  
=\> true  
irb(main):003:0\> DBI::VERSION  
=\> “0.0.23”  
irb(main):004:0\> dbh = DBI.connect(‘dbi:Pg:cdlib\_development’)  
RuntimeError: FATAL C28000 Mno PostgreSQL user name specified in  
startup packet Fpostmaster.c L1537 RProcess  
StartupPacket  
from  
c:/ruby2/lib/ruby/gems/1.8/gems/postgres-pr-0.4.0/lib/postgres-pr/connection.rb:55:in  
`initialize' from c:/ruby2/lib/ruby/gems/1.8/gems/postgres-pr-0.4.0/lib/postgres-pr/connection.rb:29:in`initialize’  
from  
c:/ruby2/lib/ruby/gems/1.8/gems/postgres-pr-0.4.0/lib/postgres-pr/postgres-compat.rb:23:in  
`initialize' from c:/ruby2/lib/ruby/site_ruby/1.8/DBD/Pg/Pg.rb:96:in`initialize’  
from c:/ruby2/lib/ruby/site\_ruby/1.8/DBD/Pg/Pg.rb:55:in  
`connect' from c:/ruby2/lib/ruby/site_ruby/1.8/dbi/dbi.rb:584:in`connect’  
from c:/ruby2/lib/ruby/site\_ruby/1.8/dbi/dbi.rb:384:in  
`connect’  
from (irb):4

# If I add the username

irb(main):005:0\> dbh =  
DBI.connect(‘dbi:Pg:cdlib\_development’,‘postgres’)  
Errno::EINVAL: Invalid argument  
from c:/ruby2/lib/ruby/1.8/readbytes.rb:16:in `read' from c:/ruby2/lib/ruby/1.8/readbytes.rb:16:in`readbytes’  
from  
c:/ruby2/lib/ruby/gems/1.8/gems/postgres-pr-0.4.0/lib/postgres-pr/message.rb:32:in  
`read' from c:/ruby2/lib/ruby/gems/1.8/gems/postgres-pr-0.4.0/lib/postgres-pr/connection.rb:30:in`initialize’  
from  
c:/ruby2/lib/ruby/gems/1.8/gems/postgres-pr-0.4.0/lib/postgres-pr/connection.rb:29:in  
`initialize' from c:/ruby2/lib/ruby/gems/1.8/gems/postgres-pr-0.4.0/lib/postgres-pr/postgres-compat.rb:23:in`initialize’  
from c:/ruby2/lib/ruby/site\_ruby/1.8/DBD/Pg/Pg.rb:96:in  
`initialize' from c:/ruby2/lib/ruby/site_ruby/1.8/DBD/Pg/Pg.rb:55:in`connect’  
from c:/ruby2/lib/ruby/site\_ruby/1.8/dbi/dbi.rb:584:in  
`connect' from c:/ruby2/lib/ruby/site_ruby/1.8/dbi/dbi.rb:384:in`connect’  
from (irb):5

I do NOT see this behavior with a hand built 1.8.4. Compiler issue?  
How that would make a difference with a pure Ruby driver I’m not sure,  
but it seems to.

Regards,

Dan

---

<div class="post-metadata">

**Author:** ![danielb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c57346/32.png) [@danielb](https://www.ruby-forum.com/u/danielb)\
**Post date:** [March 4, 2006, 12:55am UTC](https://www.ruby-forum.com/t/ugly-bug-with-one-click-installer-and-postgres-pr/70033/2 "2006-03-04T00:55:37Z")

</div>

I tracked this down into readbytes.rb, which is a standard ruby library.  
It is where a 1 (Fixnum) gets passed in. I tried putting rescu around  
it an  
hard coding in the 1 but that also fails.  
That is very strange because IO.read should take a 1.