Horton

Re: Add primary keys to system catalogs

Peter Eisentraut <peter.eisentraut@2ndquadrant.com>

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From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
To: Tom Lane <tgl@sss.pgh.pa.us>, Robert Haas <robertmhaas@gmail.com>
Cc: Craig Ringer <craig.ringer@enterprisedb.com>, Peter Eisentraut <peter.eisentraut@2ndquadrant.com>, pgsql-hackers <pgsql-hackers@postgresql.org>, Joel Jacobson <joel@compiler.org>
Date: 2021-01-21T07:41:04Z
Lists: pgsql-hackers 
On 2021-01-18 18:23, Tom Lane wrote:
> The reason I got interested in this right now is the nearby
> discussion [1] about why findoidjoins misses some catalog
> relationships and whether we should fix that and/or make its results
> more readily accessible.  I'd thought perhaps FK constraint entries
> could supersede the need for that tool altogether, but now it seems
> like not.

Yes, catalog consistency checking was also something I had in mind. 
There are clearly a number of complications still to resolve.  But in 
general the idea of representing relationships between tables in the 
DDL/schema sounds like a sensible idea.

-- 
Peter Eisentraut
2ndQuadrant, an EDB company
https://www.2ndquadrant.com/

Commits

  1. Add primary keys and unique constraints to system catalogs