Package: postgresql-10-first-last-agg Source: first-last-agg Version: 0.1.4-4-gd63ea3b-7.pgdg22.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 42 Depends: postgresql-10 Homepage: https://github.com/wulczer/first_last_agg Priority: optional Section: database Filename: pool/main/f/first-last-agg/postgresql-10-first-last-agg_0.1.4-4-gd63ea3b-7.pgdg22.04+1_amd64.deb Size: 5688 SHA256: 3735f0758dd11239b5e94065fe5c187bc989c8a5ea8388c6e7579f6d8070a75d SHA1: 3547288d255fea5b535e978d420fe7dffa7fe440 MD5sum: 990d23b299cb48678cae3259e05af971 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).