[srcreigh]

Postgres primary key indexes are not primary indexes.

[sgarland]

I know that, I’m saying that it’s a fairly pedantic argument when even their own docs use the term loosely.

[jeltz]

Primary keys are primary indexes are two mostly unrelated terms.

[j16sdiz]

"Primary Key" is the term in SQL standard. The url you linked is in "Part II: The SQL Language"