Good morning,

This is a problem from way back, see:  
http://sourceforge.net/p/dspace/mailman/message/28781652/.  If I remember 
right, it was because In The Beginning, the constraints weren't being given 
names, so they were auto-generated by the db engine.  For those of us with old 
databases, this will be a recurring problem.  If it would help, I can grab a 
schema dump (I know that's not the right terminology, but I'm hoping the 
meaning will be clear) from our db to compare with a current one.  We've been 
up since 1.3, so we should have all of the offenders.

B--

-----Original Message-----
From: Tim Donohue [mailto:tdono...@duraspace.org] 
Sent: Thursday, May 14, 2015 11:17 AM
To: Peter Dietz; Wally Grotophorst
Cc: dspace-tech
Subject: Re: [Dspace-tech] flyway migration error

Hi all,

Just a note to say I've now logged this as a bug:
https://jira.duraspace.org/browse/DS-2577

In that ticket, I've tracked down the area of the code that makes the 
assumption on the name of a PostgreSQL constraint (but it makes that assumption 
based on the default PostgreSQL naming scheme for constraints). So, we may just 
need to enhance that area of the code to no longer assume any particular name 
for a PostgreSQL constraint.

In the meantime, the "workaround" is also documented in that ticket (thanks to 
you all in this thread!).

- Tim

On 5/14/2015 12:04 PM, Peter Dietz wrote:
> Virtual Beer for all as well. I've just ran into this, (Tim pointed me 
> to it from IRC).
>
> My version of the SQL, wrapping in a transaction, to be safe, is:
>
> BEGIN;
>
> ALTER TABLE metadatavalue DROP CONSTRAINT "$1"; ALTER TABLE 
> metadatavalue ADD CONSTRAINT metadatavalue_item_id_fkey FOREIGN 
> KEY(item_id) REFERENCES item(item_id);
>
> COMMIT;
>
>
>
> We're not sure of what the cause is.
> 12:47 PM <tdonohue> yea, I'm not sure either. :)  It's definitely a 
> "glitch" that happens sometimes (since others have seen it too). But, 
> according to the PostgreSQL docs, these contraints are SUPPOSED to be 
> named [table]_[column]_fkey
> 12:47 PM <tdonohue> So, it seems like something has changed in 
> Postgres, or Postgres doesn't always follow it's own "rules"
>
> ________________
> Peter Dietz
> Longsight
> www.longsight.com <http://www.longsight.com> pe...@longsight.com 
> <mailto:pe...@longsight.com>
> p: 740-599-5005 x809
>
> On Wed, Apr 1, 2015 at 12:26 PM, Wally Grotophorst <wal...@gmu.edu 
> <mailto:wal...@gmu.edu>> wrote:
>
>     BINGO!   A virtual beer for you!
>
>     Thanks for the clear statement (no pun intended) of what I needed to
>     do.  Worked like a charm.
>
>     - Wally
>
>
>
>     Bill Tantzen wrote:
>      > Wally,
>      > Here's what I did:
>      >
>      > dspace=>  \d metadatavalue
>      >                                           Table
>     "public.metadatavalue"
>      > ...
>      > ...
>      > ...
>      >
>      > Foreign-key constraints:
>      >      "$1" FOREIGN KEY (item_id) REFERENCES item(item_id)
>      >      "$2" FOREIGN KEY (metadata_field_id) REFERENCES
>      > metadatafieldregistry(metadata_field_id)
>      >
>      > If your Foreign-key constraints look like the above, do the
>     following:
>      >
>      > dspace=>  ALTER TABLE metadatavalue DROP CONSTRAINT "$1";
>      > ALTER TABLE
>      > dspace=>  ALTER TABLE metadatavalue ADD CONSTRAINT
>      > metadatavalue_item_id_fkey FOREIGN KEY(item_id) REFERENCES
>      > item(item_id);
>      > ALTER TABLE
>      >
>      > Then, try the conversion!
>      > Cheers,
>      > Bill
>      >
>      > On Wed, Apr 1, 2015 at 9:47 AM, Wally Grotophorst<wal...@gmu.edu
>     <mailto:wal...@gmu.edu>>  wrote:
>      >> Trying to install 5.1 on a 4.1 database...on a new server (as a
>     test)
>      >> but using my 4.1 database that's imported into Postgres before I
>     launch
>      >> tomcat/dspace.
>      >>
>      >> Starts to make the schema conversion, then bombs.  This part of
>     the log
>      >> looks like it's trying to tell me the problem:
>      >>
>      >>    at org.flywaydb.core.Flyway.migrate(Flyway.java:811)
>      >>           at
>      >>
>     
> org.dspace.storage.rdbms.DatabaseUtils.updateDatabase(DatabaseUtils.java:419)
>      >>           ... 21 more
>      >> Caused by: org.postgresql.util.PSQLException: ERROR: constraint
>      >> "metadatavalue_item_id_fkey" of relation "metadatavalue" does
>     not exist
>      >>           at
>      >>
>     
> org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2103)
>      >>           at
>      >>
>     
> org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1836)
>      >>           at
>      >>
>     
> org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)
>      >>
>      >>
>      >> I saw some comment about this issue in a few earlier posts but
>     couldn't
>      >> figure out how to fix this from the info in the message traffic.  Is
>      >> there a simple SQL fix I can run prior to trying again?  Or maybe
>      >> something else?
>      >>
>      >> Platform:  OSX 10.10.1
>      >> tomcat:  7.0.59
>      >> postgres: 9.3
>      >> dspace (trying 5.1)
>      >>
>      >> - Wally
>      >>
>      >> Wally Grotophorst
>      >> Associate University Librarian
>      >> George Mason University
>      >> Fairfax, Virginia 22030
>      >> (703) 993-9005
>      >>
>      >>
>      >>
>      >>
>      >>
>     
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