Re: auto_explain logs ERROR: 08P01 for every query using bindvariable
| От | Ted Liu |
|---|---|
| Тема | Re: auto_explain logs ERROR: 08P01 for every query using bindvariable |
| Дата | |
| Msg-id | 1612134292.2041998.1580486077284@mail.yahoo.com обсуждение исходный текст |
| Ответ на | Re: auto_explain logs ERROR: 08P01 for every query using bind variable (Jeff Janes <jeff.janes@gmail.com>) |
| Список | pgsql-bugs |
Hi Jeff,
Thank you for looking into this issue.
Our Postgres version is 11.5. The auto_explain settings are
name | setting
------------------------------------+---------
auto_explain.log_analyze | off
auto_explain.log_buffers | off
auto_explain.log_format | text
auto_explain.log_min_duration | 190000
auto_explain.log_nested_statements | off
auto_explain.log_timing | on
auto_explain.log_triggers | off
auto_explain.log_verbose | off
auto_explain.sample_rate | 1
(9 rows)
Thanks,
Ted
On Friday, January 31, 2020, 9:52:51 AM EST, Jeff Janes <jeff.janes@gmail.com> wrote:
On Fri, Jan 31, 2020 at 2:14 AM Ted Liu <ted_liu@yahoo.com> wrote:
To whom it may concern,For performance and security, most of our queries use bind variables. We also implemented auto_explain for tracking down un-optimized queries. Our database supports a large application. During the work-hours, there are 30,000+ queries executed every hour. PostgreSQL logs rotates every hour and each log contains 30,000+ error message like below.2020-01-27 00:00:03 UTC:xxx.xx.0.189(35556):xxxxxx@xxxxxxdb:[130756]:ERROR: ERROR: 08P01: bind message supplies 0 parameters, but prepared statement "..." requires 12020-01-27 00:00:03 UTC:xxx.xx.0.189(35558):xxxxxx@xxxxxxdb:[130756]:LOCATION: exec_bind_message, postgres.c:16012020-01-27 00:00:03 UTC:xxx.xx.0.189(35558):xxxxxx@xxxxxxdb:[130756]:STATEMENT: EXPLAIN select ...,...,..,... from ... where ....=$1These error messages are really overwhelming to us and they are not useful at all. In our opinion, these error messages should not be logged.
I agree they shouldn't be logged. And I don't get such messages when using auto_explain with something like `pgbench -M prepared`.
What version are you using? What settings are you using for auto_explain? What is your client language/driver? Maybe the client is doing something weird like sending duplicate binds?
Cheers,
Jeff
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