On 03/19/2014 04:34 PM, Pavel Stehule wrote:
> Hello
>
> I wrote a few patches, that we use in our production. These patches
> are small, but I hope, so its can be interesting for upstream:
>
> 1. cancel time - we log a execution time cancelled statements
+1
I even wrote a patch to do this, but it wasn't pretty so I never posted
it. I would be happy to review yours or revive mine.
> 2. fatal verbose - this patch ensure a verbose log for fatal errors.
> It simplify a investigation about reasons of error.
+0
> 3. relation limit - possibility to set session limit for maximum size
> of relations. Any relation cannot be extended over this limit in
> session, when this value is higher than zero. Motivation - we use lot
> of queries like CREATE TABLE AS SELECT .. , and some very big results
> decreased a disk free space too much. It was high risk in our multi
> user environment. Motivation is similar like temp_files_limit.
-1
Also, I can't find any temp_files_limit setting anywhere.
> 4. track statement lock - we are able to track a locking time for
> query and print this data in slow query log and auto_explain log. It
> help to us with lather slow query log analysis.
-0
> Do you thinking so these patches can be generally useful?
Yes and no, as scored above.
--
Vik
