Re: Getting full query string from pg_stat_get_backend_activity

Rajesh Kumar Mallah. wrote:
> Hi ,
>
> Is it possible to get the full SQL query from
> pg_stat_get_backend_activity, currently it is truncated after
> certain number of characters , example below.

No, because the querystring length is unlimited, but the
protocol for sending the information to the statistic
collector daemon uses a compile time maximum buffer size.

You can increase that buffer size to see more of your
querystring. It is by default

src/include/pgstat.h:
#define PGSTAT_ACTIVITY_SIZE 256

Jan

>
>
> SELECT pg_stat_get_backend_pid(s.backendid) AS procpid,
> pg_stat_get_backend_activity(s.backendid) AS current_query FROM (SELECT
> pg_stat_get_backend_idset() AS backendid) s;
>
>
> procpid | current_query
> 27015 | <IDLE> in transaction
> 26978 | <IDLE> in transaction
> 26985 | <IDLE> in transaction
> 27135 | select count(*) from ( select distinct on (email_id)
> email_id,email,contact from email_bank a join (select email_id from
> email_export_category where category_id in (1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
> 12, 14, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 1
> 12262 | SELECT source_id , cnt from (SELECT source_id,count(source_id) as
> cnt from email_source group by source_id ) subsel join sources
> using(source_id) order by source_id
> 27136 | <IDLE> in transaction
> (16 rows)
>
> --
> Rajesh Kumar Mallah,
> Project Manager (Development)
> Infocom Network Limited, New Delhi
> phone: +91(11)6152172 (221) (L) ,9811255597 (M)
>
> Visit http://www.trade-india.com ,
> India's Leading B2B eMarketplace.
>
>
>
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