Re: statement_timeout doesn't work

Sergey Konoplev-2 wrote
> On Fri, Jul 18, 2014 at 6:15 PM, David G Johnston
> <

> david.g.johnston@

> > wrote:
>>>   query       | BEGIN;
>>> SET LOCAL statement_timeout TO 1000;
>>> DROP INDEX public.idx1;
>>> ALTER INDEX public.idx2 RENAME TO idx1;
>>> END;
>>
>> If I read this correctly you sent the entire begin...end as a single
>> compound statement and so, depending on how you did this, the actual SET
>> LOCAL command never got executed since the entire command is waiting for
>> the
>> necessary locks before it can be executed.
> 
> Right, I send it as a single command.
> 
>> Your sample test doesn't appear to correctly exercise this behavior.  Are
>> you maybe using -c in the problem case?  Or a client library besides psql
>> that would behave in this manner?
> 
> In this case I use DBD::Pg, but I haven't found any notes about such
> kind of behavior.
> 
>> Note that the fact that "query" is a compound statement is why I claim
>> the
>> above...
> 
> So, If I separate the commands everything will will work as expected,
> correct?

I would assume so.

If you wait to send the DROP/ALTER index commands until the SET LOCAL
command returns successfully then both of those commands will die if they
exceed the timeout specified.

Dave




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