Thanks for your reply.
if timeout setting doesn't be supported, How to solve this question that the 
client is hung for long time when executing time-comsuming query or query a 
locked table.


2011-12-09 



feng.zhou 



发件人: Craig Ringer 
发送时间: 2011-12-09  10:05:44 
收件人: feng.zhou 
抄送: pgsql-sql 
主题: Re: [SQL] Query Timeout Question 
 
On 12/09/2011 09:44 AM, feng.zhou wrote: 
Hi
I set query timeout in code by using SQLSetStmtAttr ODBC API .

SQLSetStmtAttr( StatementHandle, SQL_ATTR_QUERY_TIMEOUT, (SQLPOINTER)timeout, 0 
) ;
SQLExecute(StatementHandle);

But I find this setting has no effect.Before adding timeout setting, SQLExecute 
costs 47 seconds.After adding timeout, costing time is same.

First: You're using a very old patch release with known bugs. Update to 8.4.10 .

As for the timeout: PostgreSQL doesn't support query timeouts. It supports a 
session-level statement timeout. I don't know whether the ODBC driver uses that 
or not. Examine the ODBC `mylog' output after enabling psqlODBC debugging, and 
examine the server log after turning on query logging, so you can see what the 
ODBC driver actually asks the server for when you set a query timeout.

--
Craig Ringer

Reply via email to