From: Tom Lane <tgl@sss.pgh.pa.us>
To: John Huttley <john@mwk.co.nz>
Cc: pgsql-interfaces@postgresql.org <pgsql-interfaces@postgresql.org>
Subject: Re: Oracle Porting, Compiere
Date: Tue, 01 Apr 2003 00:13:44 -0500
Message-ID: <28385.1049174024@sss.pgh.pa.us> (raw)
In-Reply-To: <1049172917.12899.30.camel@fileserver.mwk.co.nz>
References: <1049149006.891.4.camel@fileserver.mwk.co.nz>
<27772.1049168931@sss.pgh.pa.us>
<1049172917.12899.30.camel@fileserver.mwk.co.nz>
John Huttley <john@mwk.co.nz> writes:
> This isn't more that a month or two old.
Okay, it wasn't real clear...
> The previous version worried about nested transactions.
It still should. I see no prospect that nested xacts will be in 7.4,
and I wouldn't care to bet they'll be in the release or two after ...
On a more positive note:
* NUMERIC does indeed do the unspecified-precision thing.
* If you can't be bothered to rename datatypes, CREATE DOMAIN would
serve to provide Oracle-compatible names for Postgres datatypes.
There is some parse-time overhead associated though.
* CREATE OR REPLACE does exist for some object types now --- views and
functions for sure, don't recall anything else.
* Postgres *does* do sub-SELECT-in-FROM, which is what I think is meant
by the references to embedded views.
* On the outer join syntax issue: PG supports the SQL-standard syntax,
which I believe is also supported by recent Oracle releases. Consider
migrating away from Oracle's proprietary syntax.
regards, tom lane
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To: pgsql-interfaces@postgresql.org
Cc: tgl@sss.pgh.pa.us, john@mwk.co.nz
Subject: Re: Oracle Porting, Compiere
In-Reply-To: <28385.1049174024@sss.pgh.pa.us>
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