table-inheritance (GN001)

Automatic fix is not available.

What it does

Checks for usage of table inheritance.

Why not?

Table inheritance was a part of a fad wherein the database was closely coupled to object-oriented code. It turned out that coupling things that closely didn't actually produce the desired results.

When should you?

Never …almost. Now that table partitioning is done natively, that common use case for table inheritance has been replaced by a native feature that handles tuple routing, etc., without bespoke code. One of the very few exceptions would be temporal_tables extension if you are in a pinch and want to use that for row versioning in place of a lacking SQL 2011 support. Table inheritance will provide a small shortcut instead of using UNION ALL to get both historical as well as current rows. Even then you ought to be wary of caveats while working with parent table.

Use instead:

Don't use table inheritance. Use declarative partitioning.