Package: postgresql-11-first-last-agg Source: first-last-agg Version: 0.1.4-4-gd63ea3b-9.pgdg26.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 42 Depends: postgresql-11 Homepage: https://github.com/wulczer/first_last_agg Priority: optional Section: database Filename: pool/main/f/first-last-agg/postgresql-11-first-last-agg_0.1.4-4-gd63ea3b-9.pgdg26.04+1_amd64.deb Size: 5892 SHA256: 8bc5449c02d1e1d274564094f70992899709cc9f2a3a7a965f27028f71771269 SHA1: 765793a946cdbf6ad4871e6901d8879c71102fbf MD5sum: e7448bea3409f1c19f12d66646860ac9 Description: PostgreSQL extension providing first and last aggregate functions first-last-agg is a simple extension providing two aggregate functions, last and first, operating on any element type and returning the last or the first value of the group. . Since by default the ordering inside groups created by a GROUP BY expression is not defined, it is advisable to use an ORDER BY clause inside the aggregate expression (see the aggregate function syntax).