PostgreSQL | Installing PostgreSQL | Referencing PostgreSQL Documentation
This article explains how to refer to documentation that is useful when using PostgreSQL.
PostgreSQL Online Documentation
To refer to the PostgreSQL documentation, access the following URL.
Click “Documentation” at the top of the screen.

The “Documentation” page is displayed. In “Online Manuals” on the right side of the screen, you can see links for each version. Since the installed PostgreSQL version was 12, click the link labeled 12.

Under “Translated Manuals”, you can see a list of translated languages. Unfortunately, Korean is not listed.
The PostgreSQL 12.2 documentation is displayed.
