Re: Where does meta-data come from?

From: Tom Arthurs <tarthurs(at)jobflash(dot)com>
To: Kris Jurka <books(at)ejurka(dot)com>
Cc: pgsql-jdbc(at)postgresql(dot)org
Subject: Re: Where does meta-data come from?
Date: 2006-03-30 03:22:20
Message-ID: 442B4EEC.8000203@jobflash.com
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Thanks again -- it *was* a problem in our code, (actually one of our
third-party jar files didn't build) but getting the source of the
meta-data help to eliminate that as a source of the problem.

Kris Jurka wrote:
>
>
> On Wed, 29 Mar 2006, Tom Arthurs wrote:
>
>> I'm trying to get that information from the developer (he's in
>> Toronto, and I'm in San Francisco) but he's using some package to
>> accomplish to extract the data, so does not have the queries to
>> hand. It may take a while to get that information -- what I was
>> hoping for was some information on which system catalogs jdbc queries
>> -- if you could even point me to the part of the source that emits
>> these queries we could take it from there, I think. In the meantime
>> I'll go download the source for the driver and see if I can winkle
>> out the queries on my own.
>>
>
> Well, you haven't said what metadata your getting, so it's tough to
> say which system catalogs will be involved. There are two main
> interfaces for retrieving metadata. That from query results,
> ResultSetMetaData and that from just inspecting tables and views,
> DatabaseMetaData. These are mostly
> implemented in org.postgresql.jdbc2.AbstractJdbc2ResultSetMetaData and
> org.postgresql.jdbc2.AbstractJdbc2DatabaseMetaData respectively.
>
> Kris Jurka
>
>
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