From: | Alexey Klyukin <alexk(at)commandprompt(dot)com> |
---|---|
To: | Alex Hunsaker <badalex(at)gmail(dot)com> |
Cc: | "David E(dot) Wheeler" <david(at)kineticode(dot)com>, pgsql-hackers(at)postgresql(dot)org, Andrew Dunstan <andrew(at)dunslane(dot)net> |
Subject: | Re: arrays as pl/perl input arguments [PATCH] |
Date: | 2011-01-26 19:44:26 |
Message-ID: | 906E6724-A4E2-4A34-AD7F-F4437EE19D5A@commandprompt.com |
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Lists: | pgsql-hackers |
Hi,
On Jan 26, 2011, at 8:45 PM, Alex Hunsaker wrote:
> On Sat, Jan 15, 2011 at 15:48, Alex Hunsaker <badalex(at)gmail(dot)com> wrote:
>> On Wed, Jan 12, 2011 at 13:04, Alexey Klyukin <alexk(at)commandprompt(dot)com> wrote:
>>>
>>> On Jan 12, 2011, at 8:52 PM, David E. Wheeler wrote:
>>>
>>>> On Jan 12, 2011, at 5:14 AM, Alexey Klyukin wrote:
>>>>
>>>>> You mean packing both a string representation and a reference to a single SV * value?
>>>>
>>>> Dunno, I'm not a guts guy.
>>>
>>> Well, neither me (I haven't used much of the guts api there).
>>
>> Find attached a proof of concept that modifies Alexey's patch to do
>> the above (using the overload example I and others posted).
> [ ... ]
>> Thoughts? Should I polish this a bit more? Or do we like the GUC better?
>
> So its been over a week with no comments. ISTM there were more people
> against adding yet another GUC. Barring objection ill finish the
> missing parts of the POC patch I posted and submit that.
I've played with that patch just today. I found a problem with it, when I tried to use the array in a string context the backend segfaulted with: "WARNING: Deep recursion on subroutine "main::encode_array_literal" at -e line 74" just before the segfault. I think the problem is in the regexp check in 'encode_array_literal' (it's obviously reversed comparing with the original one), but it still segfaults after I fixed that.
Other than that, the approach looks good to me, I'm for eliminating the GUC setting in favor of it.
/A
--
Alexey Klyukin
The PostgreSQL Company - Command Prompt, Inc.
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