postgres-xc-developers Mailing List for Postgres-XC

On 10/14/10 3:30 AM, mei le wrote:
> Dears,
> Postgres-xc version 0.9.2 has error process at the end of funcion 
> "ExecRemoteQuery" but such a part was deleted by later patch.In 
> postgres-xc 0.9.2, if I create a table on one datanode, I can't create 
> table on other datanodes by executing create table statment on 
> Coordinator, but the newest code can create table on other datanodes 
> by executiong same statement on Coordinator.I think the former version 
> is more appropriate than the newest code. Could you give me some 
> explains on this issue?
> Thanks.
>                                                                                       
> Truely,
>                                                                                              
> Benny
>
>

Benny,

I am sorry, can you please explain again, I think I do not understand.

In Postgres-XC, when you create a table, you do it against a 
Coordinator, and not a Data Node. The Coordinator will automatically 
create the table on the Data Nodes for you. It should be this way for 
both 0.9.2 and the latest code in the git repository.

Please let me know if I misunderstood something.

Thanks,

Mason


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-- 
Mason Sharp
EnterpriseDB Corporation
The Enterprise Postgres Company


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Dears,
 
Postgres-xc version 0.9.2 has error process at the end of funcion "ExecRemoteQuery" but such a part was deleted by later patch.In postgres-xc 0.9.2, if I create a table on one datanode, I can't create table on other datanodes by executing create table statment on Coordinator, but the newest code can create table on other datanodes by executiong same statement on Coordinator.I think the former version is more appropriate than the newest code. Could you give me some explains on this issue?
 
Thanks.
 
                                                                                      Truely,
                                                                                             Benny


      

Thanks, I will look at it soon more carefully.

A manual checkpoint should not occur too often, so I am not that 
concerned about efficiency for this case. Can the other code you did be 
used for other cases, too?

Thanks,

Mason


On 10/13/10 5:35 AM, mei le wrote:
> Dears,
> I made two patches for bug 
> https://sourceforge.net/tracker/?limit=25&func=&group_id=311227&atid=1310232&assignee=&status=&category=&artgroup=&keyword=&submitter=&artifact_id=&assignee=&status=1&category=&artgroup=&submitter=&keyword=&artifact_id=&submit=Filter&mass_category=&mass_priority=&mass_resolution=&mass_assignee=&mass_artgroup=&mass_status=&mass_cannedresponse= 
> <https://sourceforge.net/tracker/?limit=25&func=&group_id=311227&atid=1310232&assignee=&status=&category=&artgroup=&keyword=&submitter=&artifact_id=&assignee=&status=1&category=&artgroup=&submitter=&keyword=&artifact_id=&submit=Filter&mass_category=&mass_priority=&mass_resolution=&mass_assignee=&mass_artgroup=&mass_status=&mass_cannedresponse=>
> 3076224    checkpoint command causes seg fault
> 3010262    Primary Key in CREATE TABLE
> 3013984    Sequence scope
> 3013562    Multiple insert not possible
> The first one is the most simple method to solve the bug, but it may 
> lower efficency. So, I made second one which did special process for 
> checkpoint which doesn't need transaction process.
> Looking forward your kindly reply.
>                                                                                       
> Truely,
>                                                                                               
> Benny
> --- *10年9月30日，周四, Mason Sharp /<mas...@en...>/* 
> 写道：
>
>
>     发件人: Mason Sharp <mas...@en...>
>     主题: tasks
>     收件人: "mei le" <lem...@ya...>
>     抄送: ""03：鈴木(幸)様(DI)"" <ko...@in...>
>     日期: 2010年9月30日,周四,下午4:46
>
>     I understand you and your friends are busy for a while.
>
>     If you would like to get involved, once you have more time later,
>     here are some tasks that might be some good ones to start with, in
>     approximate order of what makes sense to work on.
>
>
>
>     Bugs
>
>     https://sourceforge.net/tracker/?limit=25&func=&group_id=311227&atid=1310232&assignee=&status=&category=&artgroup=&keyword=&submitter=&artifact_id=&assignee=&status=1&category=&artgroup=&submitter=&keyword=&artifact_id=&submit=Filter&mass_category=&mass_priority=&mass_resolution=&mass_assignee=&mass_artgroup=&mass_status=&mass_cannedresponse=
>     <https://sourceforge.net/tracker/?limit=25&func=&group_id=311227&atid=1310232&assignee=&status=&category=&artgroup=&keyword=&submitter=&artifact_id=&assignee=&status=1&category=&artgroup=&submitter=&keyword=&artifact_id=&submit=Filter&mass_category=&mass_priority=&mass_resolution=&mass_assignee=&mass_artgroup=&mass_status=&mass_cannedresponse=>
>
>     3076224    checkpoint command causes seg fault
>     3010262    Primary Key in CREATE TABLE
>     3013984    Sequence scope
>     3013562    Multiple insert not possible
>
>
>
>     Features
>
>     https://sourceforge.net/tracker/?group_id=311227&atid=1310235
>     <https://sourceforge.net/tracker/?group_id=311227&atid=1310235>
>
>     3000104    COPY TO with SELECT
>     3014003    Pooler Request Queuing
>     3014002    Pooler should shrink
>     3022406    Safer Hash Distribution to Data Nodes
>
>
>     Thanks,
>
>     Mason
>
>     -- Mason Sharp
>     EnterpriseDB Corporation
>     The Enterprise Postgres Company
>
>
>     This e-mail message (and any attachment) is intended for the use of
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>     contains information from EnterpriseDB Corporation that may be
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>     retention, archiving, or copying of this communication is strictly
>     prohibited. If you have received this e-mail in error, please notify
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>
>


-- 
Mason Sharp
EnterpriseDB Corporation
The Enterprise Postgres Company


This e-mail message (and any attachment) is intended for the use of
the individual or entity to whom it is addressed. This message
contains information from EnterpriseDB Corporation that may be
privileged, confidential, or exempt from disclosure under applicable
law. If you are not the intended recipient or authorized to receive
this for the intended recipient, any use, dissemination, distribution,
retention, archiving, or copying of this communication is strictly
prohibited. If you have received this e-mail in error, please notify
the sender immediately by reply e-mail and delete this message.