docs: improve 'capitals' inheritance example
authorBruce Momjian <bruce@momjian.us>
Mon, 31 Aug 2020 17:43:04 +0000 (13:43 -0400)
committerBruce Momjian <bruce@momjian.us>
Mon, 31 Aug 2020 17:43:04 +0000 (13:43 -0400)
commit64fd65008c62ec011ba2d0673ca09849ae2b07c8
treee9213dd9cb0d8193caefc780402f7c1f421622a0
parent785affc1d653bac43b7d4fad93f22e9e51aefcc1
docs:  improve 'capitals' inheritance example

Adds constraints and improves wording.

Reported-by: 2552891@gmail.com
Discussion: https://postgr.es/m/159586122762.680.1361378513036616007@wrigleys.postgresql.org

Backpatch-through: 9.5
doc/src/sgml/advanced.sgml