Re: a common place for pl/perlu modules

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

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> Alexey Klyukin wrote:
>> On Feb 11, 2010, at 6:24 PM, Andrew Dunstan wrote:
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>>> Alexey Klyukin wrote:
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>>>> Hello,
>>>>
>>>> When developing pl/perlu functions common definitions and methods are often stored in external .pm modules. During deployment the modules should be installed somewhere in @INC to be reachable by the perl interpreter. However, installing the modules to a location outside of the PG installation makes it hard to have a consistent environment when running multiple 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 allow a user to specify such location by adding a new custom GUC variable.
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>>> Why won't setting this in the new on_perl_init setting work? It's even included in to documented examples using the standard lib module: <http://developer.postgresql.org/pgdocs/postgres/plperl-under-the-hood.html#PLPERL-CONFIG>
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>> The lack of support for SPI functions makes this hardly an adequate solution. I do have both modules and SPI calls in several pl/perlu functions.
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> That has nothing to do with what you asked about, namely setting the include path. You can set the include path in on_perl_init with "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 documentation as a place to put .pm files ?

--
Alexey Klyukin http://www.CommandPrompt.com/
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