[HACKERS] a common place for pl/perlu modules
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. -- Alexey Klyukin http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
Re: [HACKERS] a common place for pl/perlu modules
Alexey Klyukin wrote: 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. 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 cheers andrew -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
Re: [HACKERS] a common place for pl/perlu modules
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 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. 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 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. -- Alexey Klyukin http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
Re: [HACKERS] a common place for pl/perlu modules
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 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. 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 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. 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. cheers andrew -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
Re: [HACKERS] 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 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. 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 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. 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/ The PostgreSQL Company - Command Prompt, Inc -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
