Re: a common place for pl/perlu modules

On Feb 11, 2010, at 7:07 PM, Andrew Dunstan wrote:

>
>
> Alexey Klyukin wrote:
>> On Feb 11, 2010, at 6:24 PM, Andrew Dunstan wrote:
>>
>>
>>> Alexey Klyukin wrote:
>>>
>>>> Hello,
>>>>
>>>> When developing pl/perlu functions common definitions and methods are often stored in external .pm modules. During
deploymentthe modules should be installed somewhere in @INC to be reachable by the perl interpreter. However,
installingthe modules to a location outside of the PG installation makes it hard to have a consistent environment when
runningmultiple PG versions on the same host. What do you think about defining a canonical place for pl/perlu .pm
modules(i.e. PKGLIBDIR) and adding this location to @INC during the interpreter initialization ? Another idea is to
allowa user to specify such location by adding a new custom GUC variable. 
>>>>
>>>>
>>>>
>>> Why won't setting this in the new on_perl_init setting work? It's even included in to documented examples using the
standardlib module: <http://developer.postgresql.org/pgdocs/postgres/plperl-under-the-hood.html#PLPERL-CONFIG> 
>>>
>>
>> The lack of support for SPI functions makes this hardly an adequate solution. I do have both modules and SPI calls
inseveral pl/perlu functions. 
>>
>>
>
>
> That has nothing to do with what you asked about, namely setting the include path. You can set the include path in
on_perl_initwith "use lib" and then "use" your modules in your plperlu functions, at which point SPI will be available. 

Ah, it seems I misinterpreted the documentation. This is much better, but still it requires setting the path
explicitly. 
What about having a default location for the modules that is automatically added to @INC and is recommended in the
documentationas a place to put .pm files  ? 

--
Alexey Klyukin                    http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc