Re: question on renaming a foreign key

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От Brent Wood
Тема Re: question on renaming a foreign key
Дата
Msg-id 452D8E35.5020909@niwa.co.nz
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Ответ на question on renaming a foreign key  (Jonathan Vanasco <postgres@2xlp.com>)
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Jonathan Vanasco wrote:
>
> I made a  HUGE mistake, and used 'UK' as the abbreviation for the
> united kingdom ( the ISO abbv is 'GB' )
>
> I've got a database where 8 tables have an FKEY on a table
> 'location_country' , using the text 'uk' as the value -- so i've got
> 9 tables that I need to swap data out on
>
> can anyone suggest a non-nightmarish way for me to do this ?

Umm, I think this should work, & isn't all that bad:

insert a 'gb' record in location_country
update <each of 8 tables> set country='gb' where country='uk'
delete the 'uk' record from location_country


Brent Wood

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