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From: Achilleus Mantzios <achill@matrix.gatewaynet.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Mike Sosteric <mikes@athabascau.ca>
Cc: Bruno Wolff III <bruno@wolff.to>
Cc: pgsql-general@postgresql.org
Cc: pgsql-sql@postgresql.org
Subject: Re: [SQL] arrays
Date: Tue, 1 Oct 2002 10:49:41 +0300 (EEST)
Message-ID: <Pine.LNX.4.44.0210011037310.661-100000@matrix.gatewaynet.com> (raw)
In-Reply-To: <21137.1033396928@sss.pgh.pa.us>


I was wondering why is such a rage against arrays.

I posted 2 very common problems where arrays provide
the only natural (and efficient) fit. (and got no responses)
So it seems to me that:

- Arrays implementation (along with the intarray package) in postgresql
  is well performing and stable.
- Some problems shout out for array usage.
- The Array interface is defined in java.sql package.
  (I dont know if sql arrays is in some standard but it seems that
  Java sees it that way, at least).
- The Array interface is implemented in the official postgresql java
package.
- In some problems replacing arrays according the tradition relational
paradigm would end up in a such a performance degradation, that
some applications would be unusable.
- Oleg and Teodor did a great job in intarray, making array usage
 easy and efficient.

Thanx!


==================================================================
Achilleus Mantzios
S/W Engineer
IT dept
Dynacom Tankers Mngmt
Nikis 4, Glyfada
Athens 16610
Greece
tel:    +30-10-8981112
fax:    +30-10-8981877
email:  achill@matrix.gatewaynet.com
        mantzios@softlab.ece.ntua.gr




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