The PostgreSQL 13.0 sources can be obtained from the download section of our website: https://www.postgresql.org/download/. You should get a file named
postgresql-13.0.tar.bz2. After you have obtained the file, unpack it:
tar xf postgresql-13.0.tar
bunzip2 instead of
gunzip if you have the
.bz2 file. Also, note that most modern versions of
tar can unpack compressed archives directly, so you don't really need the separate
bunzip2 step.) This will create a directory
postgresql-13.0 under the current directory with the PostgreSQL sources. Change into that directory for the rest of the installation procedure.
You can also get the source directly from the version control repository, see Appendix I.
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.