| From: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
|---|---|
| To: | Darren Duncan <darren(at)darrenduncan(dot)net>, pgsql-advocacy(at)lists(dot)postgresql(dot)org |
| Subject: | Re: PostgreSQL 12: Feature Highlights |
| Date: | 2019-05-13 11:40:28 |
| Message-ID: | 8bd845e9-f678-bac5-85fa-fcde9a5904c6@2ndquadrant.com |
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| Lists: | pgsql-advocacy pgsql-hackers |
On 2019-05-12 23:04, Darren Duncan wrote:
> On 2019-05-12 8:28 a.m., Jonathan S. Katz wrote:
>> 7. Introduction of generated columns that compute and store an
>> expression as a value on the table
>
> It seems to me that one of the things that's valuable about this feature is that
> one can make as regular visible data any calculated-from-a-row value that is
> used for indexing purposes rather than that being hidden or not possible. I
> assume or hope that generated columns can be used in all index types like
> regular columns right? -- Darren Duncan
The answer to your question is that, yes, they can, but I don't
understand what your first sentence is trying to say.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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