Package: postgresql-18-first-last-agg Source: first-last-agg Version: 0.1.4-4-gd63ea3b-8.pgdg22.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 51 Depends: postgresql-18 Homepage: https://github.com/wulczer/first_last_agg Priority: optional Section: database Filename: pool/main/f/first-last-agg/postgresql-18-first-last-agg_0.1.4-4-gd63ea3b-8.pgdg22.04+1_amd64.deb Size: 8496 SHA256: a623445d7b2a54964e24e89ccde8542deaa8b15c7f2a6cb661469522f95d7322 SHA1: 5b2507895524455ee6d1381da564339d6462f025 MD5sum: 4a562a66742c7c8cf95c6066ad7c7a4e 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).