The PostgreSQL source code for released versions can be obtained from the download section of our website: https://www.postgresql.org/ftp/source/. Download the
postgresql- file you're interested in, then unpack it:
tar xf postgresql-
This will create a directory
postgresql- under the current directory with the PostgreSQL sources. Change into that directory for the rest of the installation procedure.
Alternatively, you can use the Git version control system; see Section I.1 for more information.
If you see anything in the documentation that is not correct, does not match your experience with the particular feature or requires further clarification, please use this form to report a documentation issue.