The Tcl procedural language for PostgreSQL
The postgresql-pltcl package contains the PL/Tcl procedural language, which is an extension to the PostgreSQL database server. Install this if you want to write database functions in Tcl.
acquired package info from repodata DB: repodata/c6728b641a5a2e9ff95d4e939ef469b8dd52a854bca394edd63e2db1de374323-primary.sqlite.bz2
The programs needed to create and run a PostgreSQL server
PostgreSQL is an advanced Object-Relational database management system (DBMS). The postgresql-server package contains the programs needed to create and run a PostgreSQL server, which will in turn allow you to create and maintain PostgreSQL databases.