Re: ERROR: out of shared memory

From: Michael Moore <michaeljmoore(at)gmail(dot)com>
To: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
Cc: postgres list <pgsql-sql(at)postgresql(dot)org>
Subject: Re: ERROR: out of shared memory
Date: 2016-11-02 21:52:43
Message-ID: CACpWLjP89TxUeRB1OQTm7t0nTGY2osXL4w63u+5DUW+NTOuBPg@mail.gmail.com
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I'll give that a go.

On Wed, Nov 2, 2016 at 2:49 PM, David G. Johnston <
david(dot)g(dot)johnston(at)gmail(dot)com> wrote:

> On Wed, Nov 2, 2016 at 2:31 PM, Michael Moore <michaeljmoore(at)gmail(dot)com>
> wrote:
>
>> ERROR: out of shared memory
>> SQL state: 53200
>> Hint: You might need to increase max_locks_per_transaction.
>> Context: SQL statement "drop table if exists temp_rslt"
>> -------------------------------------------------------------------------
>> Here is an overview of the processing that is causing this.
>>
>> I have a function I wrote named fGetQuestions. This function is very
>> complex, but one of the things it does is create several TEMP tables. Here
>> is a snipit of code that does it:
>>
>>> drop table if exists temp_rslt;
>>>
>>> drop table if exists campuslocation_rslt;
>>>
>>> drop table if exists final_rslt;
>>>
>>> create temporary table temp_rslt of ypxportal2__fgetquestions on commit
>>>> drop;
>>>
>>> create temporary table campuslocation_rslt of ypxportal2__fgetquestions
>>>> on commit drop;
>>>
>>> create temporary table final_rslt of ypxportal2__fgetquestions on commit
>>>> drop;
>>>
>>> ​
>>
>
> [...]
>
>
>> ​
>>
>> Is there anything I can do to make sure that when fGetQuestions returns
>> to mikes_fget_questions_tester() that all of the fGetQuestions
>> resources are freed?
>>
>>
> Maybe try losing the DROP TABLES and just do:​
>
> ​CREATE TEMP TABLE ... IF NOT EXISTS ... ON COMMIT DROP;
> TRUNCATE ...;
>
> ​David J.​
>
>

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