/usr/share/postgresql/11
Directories:

• /usr/share/postgresql/11/contrib
• /usr/share/postgresql/11/man
• /usr/share/postgresql/11/timezonesets
• /usr/share/postgresql/11/tsearch_data
• /usr/share/postgresql/11/extension
• /usr/share/postgresql

Files:

• recovery.conf.sample
• conversion_create.sql
• information_schema.sql
• pg_ident.conf.sample
• psqlrc.sample
• postgres.description
• system_views.sql
• postgres.bki
• snowball_create.sql
• pg_service.conf.sample
• pg_hba.conf.sample
• postgres.shdescription
• postgresql.conf.sample
• catalog_version
• errcodes.txt
• sql_features.txt