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From: Rich Shepard <[email protected]>
To: pgsql-general <[email protected]>
Subject: Re: Lookup tables
Date: Tue, 4 Feb 2025 07:08:41 -0800 (PST)
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAKFQuwYpoUxB8je87ozcajt2L7BrNtN9j9mTfomU6gw=jsKNNg@mail.gmail.com>
References: <[email protected]>
	<CANzqJaC3FeJCSy5EUw9VzunBgG3EK6e9=QzUk9wkF8o1Y5iToA@mail.gmail.com>
	<CAKFQuwYpoUxB8je87ozcajt2L7BrNtN9j9mTfomU6gw=jsKNNg@mail.gmail.com>

On Tue, 4 Feb 2025, David G. Johnston wrote:

> The point of a lookup table is to provide a unique list of authoritative
> values for some purpose. Kinda like an enum. But having the label serve as
> the unique value is reasonable - we only add surrogates for optimization.

David,

The industrytypes table has 26 rows, the statustypes table has 8 rows. Your
explanation suggests that for this database adding a PK to each table adds
little, if anything.

Regards,

Rich

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