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Re: Problem with 7.0.3 dump -> 7.1b4 restore

From: Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp>
To: rmager(at)vgkk(dot)com
Cc: pgsql-bugs(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Problem with 7.0.3 dump -> 7.1b4 restore
Date: 2001-02-23 01:31:30
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-bugspgsql-hackers
> We have a Unicode (UTF-8) database that we are trying to upgrade to 7.1b4.
> We did a pg_dumpall (yes, using the old version) and then tried a restore.
> We hit the following 3 problems:
> 1. Some of the text is large, about 20k characters, and is multiline. For
> almost all of the lines this was fine (postgres put a \ at the end of the
> previos line) but for some it was not. The lines I looked at all had
> non-English characters (Japanese and/or Korean) at the end of the line. When
> the restore encountered these lines it failed and, since the dump uses COPY,
> the entire table was left blank.
> 2. Some two-byte dash/hyphen characters DID get correctly imported into the
> database but could not be read out again via JDBC, that is, when read the
> record was truncated at the character. This _might_ be related to a long
> standing Java core bug regarding improper conversions between certain
> languages and the internal Unicode representation for hyphens.
> 3. One other character, a two-byte apostrophe, was not restoreable,
> similarly to the hyphen problem.
> After fighting the above, I decided to try doing the dump with the -dn
> flags. This fixed problem #1 but not 2 or 3. If needed I can try to get
> details about the problem characters.

This might be related to a known bug with 7.0.x. Can you grab a patch
and try again?

Or even better, can you give me a minimum set of data that reproduces
your problem?
Tatsuo Ishii

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