Re: [JDBC] Fix for broken JDBC's getColumn() (take 2)
От | Bruce Momjian |
---|---|
Тема | Re: [JDBC] Fix for broken JDBC's getColumn() (take 2) |
Дата | |
Msg-id | 200109271706.f8RH6oI20132@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Fix for broken JDBC's getColumn() (take 2) ("Vianen, Jeroen van" <jeroen.van.vianen@satama.com>) |
Список | pgsql-patches |
OK, adding to queue. Your patch has been added to the PostgreSQL unapplied patches list at: http://candle.pha.pa.us/cgi-bin/pgpatches I will try to apply it within the next 48 hours. > Hi, > > What's the status of this patch I sent two weeks ago? I got no reply last > week for the same question. > > My original mail can be found at > http://fts.postgresql.org/db/mw/msg.html?mid=1034457 > > Thanks, > > > Jeroen > > > -----Original Message----- > > From: Jeroen van Vianen [mailto:jeroen.van.vianen@satama.com] > > Sent: Monday, September 10, 2001 20:01 > > To: pgsql-jdbc@postgresql.org; pgsql-patches@postgresql.org > > Subject: [JDBC] Fix for broken JDBC's getColumn() (take 2) > > > > > > Hi, > > > > Per the recent discussion there's been some code changes in JDBC's > > DatabaseMetaData.getColumn(). I proposed a patch that would > > change the > > number of queries to find out all columns in a table from 2 * > > N + 1 to 1 (N > > being the number of columns reported) by using some outer > > joins. I also > > fixed the fact that getColumns() only returned columns that > > had a default > > defined. OTOH, I did not use to change the code required for > > obtaining a > > column's remarks (by using col_description() for 7.2 and > > requested by Tom > > Lane). > > > > Finally, I have found a way to get all the column details in > > a single query > > *and* use col_description() for 7.2 servers. A patch is attached. It > > overrules Ren? Pijlman's fix for this that was committed just > > today, but > > still used N + 1 queries (sorry Ren? ;-) ) > > > > I also fixed the return values for TABLE_CAT and TABLE_SCHEM > > from "" to > > null, to be more standard compliant (and requested in Ren?'s > > mail found at > > http://fts.postgresql.org/db/mw/msg.html?mid=1034253). > > > > As always, the JDBC1 version has not been tested as I have no JDK 1.1 > > available. > > > > Please review, > > > > > > Jeroen > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org > -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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