| From: | Peter Moser <pitiz29a(at)gmail(dot)com> |
|---|---|
| To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
| Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>, Johann Gamper <gamper(at)inf(dot)unibz(dot)it>, Michael Böhlen <boehlen(at)ifi(dot)uzh(dot)ch>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Anton Dignös <anton(dot)dignoes(at)unibz(dot)it> |
| Subject: | Re: [PROPOSAL] Temporal query processing with range types |
| Date: | 2017-09-22 08:15:17 |
| Message-ID: | CAHO0eLZ8ZFS=6yEO_ewjUjFWuppMt-+2_Y-YZwhvFfaDWt7wyw@mail.gmail.com |
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2017-09-22 10:06 GMT+02:00 Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>:
> ANSI SQL 2011 has temporal data support
>
> https://www.slideshare.net/CraigBaumunk/temporal-extensions-tosql20112012010438
As operations it only supports temporal inner joins using the overlap predicate.
Temporal aggregation, temporal outer joins, temporal duplicate
elimination, and temporal set operations are not supported in
SQL:2011.
Please see [1] Section 2.5 Future directions.
Best regards,
Anton, Johann, Michael, Peter
[1] https://cs.ulb.ac.be/public/_media/teaching/infoh415/tempfeaturessql2011.pdf
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