Package: postgresql-9.5-first-last-agg Source: first-last-agg Version: 0.1.4-4-gd63ea3b-3.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 42 Depends: postgresql-9.5 Homepage: https://github.com/wulczer/first_last_agg Priority: optional Section: database Filename: pool/main/f/first-last-agg/postgresql-9.5-first-last-agg_0.1.4-4-gd63ea3b-3.pgdg20.04+1_amd64.deb Size: 5600 SHA256: eebb1d00c986777aba60f3c9445c16cd384f2ba58f3da57a1cc64d3df9e6a266 SHA1: 9a7994478f8786dca32ce37016a9ce55d41b514e MD5sum: dacb4c0a9ea95a597fd65d31f4ed7604 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).