Re: [SQL] arrays

From: Achilleus Mantzios <achill(at)matrix(dot)gatewaynet(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Mike Sosteric <mikes(at)athabascau(dot)ca>, Bruno Wolff III <bruno(at)wolff(dot)to>, <pgsql-general(at)postgresql(dot)org>, <pgsql-sql(at)postgresql(dot)org>
Subject: Re: [SQL] arrays
Date: 2002-10-01 07:49:41
Message-ID: Pine.LNX.4.44.0210011037310.661-100000@matrix.gatewaynet.com
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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(at)matrix(dot)gatewaynet(dot)com
mantzios(at)softlab(dot)ece(dot)ntua(dot)gr

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