Does Postgres Object-Relational Syntax follow Standard?

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От Will Rutherdale (rutherw)
Тема Does Postgres Object-Relational Syntax follow Standard?
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Msg-id B90F43429775DA4E80ECABFB9E6BDC2615976801@xmb-aln-x10.cisco.com
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Ответы Re: Does Postgres Object-Relational Syntax follow Standard?  (Craig Ringer <ringerc@ringerc.id.au>)
Re: Does Postgres Object-Relational Syntax follow Standard?  (Chris Travers <chris.travers@gmail.com>)
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Hi.

I was having a discussion with people at work about the Postgres object-relational syntax.  The question came up:  does
thisfollow an SQL standard?  Or is it rather a Postgres-only feature with different RDBMSs doing it differently? 

I tried some quick checks on Google and Wikipedia but couldn't find clear answers.  There seem to be different SQL
standards(for example SQL 2003, SQL 2008), but from what I can see, these don't cover object-relational syntax. 

-Will

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