Skip site navigation (1) Skip section navigation (2)

Re: [JDBC] JDBC and Binary protocol error, for some statements

From: Maciek Sakrejda <msakrejda(at)truviso(dot)com>
To: Radosław Smogura <rsmogura(at)softperience(dot)eu>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PG Hackers <pgsql-hackers(at)postgresql(dot)org>, PostgreSQL JDBC List <pgsql-jdbc(at)postgresql(dot)org>
Subject: Re: [JDBC] JDBC and Binary protocol error, for some statements
Date: 2010-11-25 19:28:02
Message-ID: AANLkTim9yud09tPLYnbKcAtv=jZHUqVY-1+2BeOS+0d=@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-jdbc
> So, to summarise, I shouldn't believe server DescribeRow (in context of format), in this situation, but only I should look at this what I asked
> for, isn't it? If I asked for columns in binary format, I need to do binary reading regarding what server has responded?

Yes, because in this case "0" doesn't mean "the result will be in
text", it means, "you issued the statement-variant of Describe, so I'm
not sure what the result format will be yet."

> If I asked for odd columns in text, even in binary do I need to choose proper format basing only on my request?

I don't quite understand this question, but I think so. I don't think
there's ever a situation where the server will ignore your result
format requests.

> But to the last part of cited protocol specification, when I've sent message with statement parameter's type int4, int8, varchar the format
> field wasn't set to 0, but 1.

I wasn't able to reproduce that with my standalone test case. When I
changed the parameter oid to 23, I still got the same behavior. Can
you alter my test case to reproduce the error?

---
Maciek Sakrejda | System Architect | Truviso

1065 E. Hillsdale Blvd., Suite 215
Foster City, CA 94404
(650) 242-3500 Main
www.truviso.com

In response to

Responses

pgsql-hackers by date

Next:From: Radosław SmoguraDate: 2010-11-25 19:34:41
Subject: Re: [JDBC] JDBC and Binary protocol error, for some statements
Previous:From: Robert HaasDate: 2010-11-25 19:25:37
Subject: Re: [COMMITTERS] How strings are sorted by LC_COLLATE specifically?

pgsql-jdbc by date

Next:From: Radosław SmoguraDate: 2010-11-25 19:34:41
Subject: Re: [JDBC] JDBC and Binary protocol error, for some statements
Previous:From: Samuel GendlerDate: 2010-11-25 19:11:04
Subject: Re: Problem with COPY using PostgreSQL 9 and JDBC 4

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group