PostgreSQL and relational.
[Posted June 19, 2002 by corbet]
| From: |
| Lamar Owen <lamar.owen@wgcr.org> |
| To: |
| lgcdutra@terra.com.br, letters@lwn.net |
| Subject: |
| PostgreSQL and relational. |
| Date: |
| Thu, 13 Jun 2002 23:40:22 -0400 |
In reference to your e-mail on the subject of PostgreSQL not being relational,
would you mind specifying exactly which of E F Codd's 12 rules of the
relational model PostgreSQL breaks? Using SQL as the language to access a
RDBMS does not invalid the relational model used by that RDBMS. Show me the
rule(s) broken specifically by PostgreSQL itself, not by SQL in general.
PostgreSQL meets the qualifications for a relational system as defined by E F
Codd and C J Date. Having read Date's work, I find it amusing that you would
quote from a site which prominently features C J Date as a contributor.
You need to take MySQL to task for truly not being relational according to
Codd's 12 rules. :-)
--
Lamar Owen
WGCR Internet Radio
1 Peter 4:11
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