| From: | Steve Crawford <scrawford(at)pinpointresearch(dot)com> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Cc: | tfinneid(at)student(dot)matnat(dot)uio(dot)no, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Gregory Stark <stark(at)enterprisedb(dot)com>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: select count() out of memory |
| Date: | 2007-10-25 17:07:40 |
| Message-ID: | 4720CD5C.2020904@pinpointresearch.com |
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| Lists: | pgsql-general |
Alvaro Herrera wrote:
...
>
> You can use CREATE TABLE LIKE, which copies the definition but does not
> set the inheritance.
>
Well, sort of.
Unless I'm using it incorrectly it only copies the basic column
definitions and, as optionally specified, defaults and some of the
constraints.
Primary key constraints are lost as CREATE TABLE newtable (LIKE
oldtable) does not create any indexes including those necessary for the
primary key.
I don't know how foreign-key constraints are handled as I haven't used
this form of CREATE TABLE where foreign keys are involved.
Cheers,
Steve
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