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Re: 'default nextval()' loses schema-qualification in dump ?

From: Arnaud Lesauvage <arnaud(dot)listes(at)codata(dot)eu>
To: Hiroshi Inoue <inoue(at)tpf(dot)co(dot)jp>
Cc: pgsql-odbc(at)postgresql(dot)org
Subject: Re: 'default nextval()' loses schema-qualification in dump ?
Date: 2010-07-09 07:40:53
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Lists: pgsql-generalpgsql-odbc
Le 9/07/2010 5:31, Hiroshi Inoue a écrit :
> Arnaud Lesauvage wrote:
>>  Le 7/07/2010 9:41, Richard Huxton a écrit :
>>>  On 07/07/10 07:47, Arnaud Lesauvage wrote:
>>>>   Le 6/07/2010 17:17, Tom Lane a écrit :
>>>>>   Arnaud Lesauvage<arnaud(dot)listes(at)codata(dot)eu>   writes:
>>>>>>   As you have understood, I am not very savvy about postgresql's
>>>>>>   internals, but from what you say my guess is that the problem is
>>>>>>  int the
>>>>>>   psqlODBC is getting the default value of the sequence ?
>>>>   [9.125]conn=095C4198, query='select n.nspname, c.relname, a.attname,
>>>>   a.atttypid, t.typname, a.attnum, a.attlen, a.atttypmod, a.attnotnull,
>>>>   c.relhasrules, c.relkind, c.oid, d.adsrc, case t.typtype when 'd' then
>>>>   t.typbasetype else 0 end, t.typtypmod from (((pg_catalog.pg_class c
>>>>   inner join pg_catalog.pg_namespace n on n.oid = c.relnamespace and
>>>>   c.relname = E'mytable' and n.nspname = E'myschema') inner join
>>>>   pg_catalog.pg_attribute a on (not a.attisdropped) and a.attnum>   0 and
>>>>   a.attrelid = c.oid) inner join pg_catalog.pg_type t on t.oid =
>>>>   a.atttypid) left outer join pg_attrdef d on a.atthasdef and d.adrelid =
>>>>   a.attrelid and d.adnum = a.attnum order by n.nspname, c.relname,
>>>>  attnum'
>>>  This is psqlODBC getting the sequence name (if you run this query it's
>>>  the adsrc column). If I remember correctly, that's supposed to be the
>>>  human-readable version of an expression and preserved *as entered by the
>>>  user* (or pg_restore in your case).
>>>  If you start psql with the "-E" option and do \d myschema.mytable you'll
>>>  be able to see how it gets the sequence-name. About half-way down the
>>>  list of queries it runs you'll see a reference to pg_get_expr(...) -
>>>  that turns an internal representation into a useful usable one.
>>>  I don't know why psqlODBC isn't using that. The function has been around
>>>  for a while. Hmm - it's present back in 7.4 although it's not used in \d
>>>  - that does reference adsrc directly.
>>>  Just grabbed the source download for the latest version and it still
>>>  looks like it's using adsrc (I just searched for that and pg_get_expr).
>>>  There should probably be a change in info.c around line 2091 to add a
>>>  check for a recent version of PG (8+) and use pg_get_expr. Check on the
>>>  odbc mailing-list - there may be an updated version available for you to
>>>  test.
>>  I haven't found a version more recent than the one I am using.
>>  Is this thread enough for a bug report, or should a new one be opened ?
>>  I don't think I know enough of either psqlODBC's internals to explain
>>  the problem to the developers, and I am not sure this thread will get
>>  their attention.
> Could you please try the drivers on testing for 8.4.0201 at
> ?

It works fine Hiroshi, thanks a lot !
Do you know when a release as an msi installer will be available ? We 
deploy this driver through an active directory policy.

Thanks again !

Arnaud Lesauvage

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