PostgreSQL function can not load dll library.

Started by Nonameover 16 years ago2 messagesgeneral
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#1Noname
A.Bhattacharya@sungard.com

Hi All,

I am creating a dll using MSVC 2005 and trying to call the dll from my
Postgres function but unfortunately PostgreSQL is throwing an error
message saying:

ERROR: could not load library "C:/Program
Files/PostgreSQL/8.3/lib/watchlist.dll": The specified module could not
be found.

SQL state: 58P01

However I have created the dll and exported the required function to
make the dll the callable by PostgeSQL.

I am using PostgreSQL 8.3 and the dll have been created successfully
without any compilation errors.

It would be nice if anyone can help me as I am stuck in this for almost
a week.

Many thanks.

AB

#2Craig Ringer
craig@2ndquadrant.com
In reply to: Noname (#1)
Re: PostgreSQL function can not load dll library.

On Tue, 2009-10-27 at 02:19 -0400, A.Bhattacharya@sungard.com wrote:

I am creating a dll using MSVC 2005 and trying to call the dll from my
Postgres function

OK, so you're creating a PostgreSQL module implementing one or more
SQL-callable functions in C. When you load it into the server with
`CREATE FUNCTION' ?

but unfortunately PostgreSQL is throwing an error message saying:

ERROR: could not load library "C:/Program
Files/PostgreSQL/8.3/lib/watchlist.dll": The specified module could
not be found.

Assuming that the file is, in fact, on the path you've specified: Is it
possible that your DLL links to other DLLs that are not on the
PostgreSQL server's path? If your DLL links to another that cannot be
found, that error message is the one you'll get.

Dependency walker (depends.exe) from http://dependencywalker.com/ may
help you track that down.

--
Craig Ringer