Package: postgresql-9.6-first-last-agg Source: first-last-agg Version: 0.1.4-4-gd63ea3b-5.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 42 Depends: postgresql-9.6 Homepage: https://github.com/wulczer/first_last_agg Priority: optional Section: database Filename: pool/main/f/first-last-agg/postgresql-9.6-first-last-agg_0.1.4-4-gd63ea3b-5.pgdg20.04+1_amd64.deb Size: 5660 SHA256: 52e46ddf8d80c0570c1eb1c61fc8f34485941ab5e76be2c798dad379d80ba57c SHA1: cd5a5e19c87db351b1325b9cecb29855016e3cf6 MD5sum: a43abd61310caf76fefda3abda6d36eb 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).