Re: Lookup tables

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От Rich Shepard
Тема Re: Lookup tables
Дата
Msg-id c4fcf2f3-dda-e52e-4140-e16f7e95a580@appl-ecosys.com
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Ответ на Lookup tables  (Rich Shepard <rshepard@appl-ecosys.com>)
Ответы Re: Lookup tables [FIXED]
Список pgsql-general
On Tue, 4 Feb 2025, Rob Sargent wrote:

> I would definitely add an Id for each of the looked up values. The code
> can use the Id (for the join or lookup) and the string value can safely be
> changed (think typo) without ripple effect.  It also prevents other tables
> from referencing the lookup witrh bogus values (those not in the lookup
> table)
>
> Unless your lookup tables are huge I would create a new table matching
> your current table but with an identity column and load from you original
> table.
> https://www.postgresql.org/docs/current/ddl-identity-columns.html

Thanks, Rob. Each lookup table has only a very few rows,

I'll make new tables today.

Regards,

Rich



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