Package: postgresql-15-first-last-agg Source: first-last-agg Version: 0.1.4-4-gd63ea3b-6.pgdg18.04+1 Architecture: i386 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 43 Depends: postgresql-15 Homepage: https://github.com/wulczer/first_last_agg Priority: optional Section: database Filename: pool/main/f/first-last-agg/postgresql-15-first-last-agg_0.1.4-4-gd63ea3b-6.pgdg18.04+1_i386.deb Size: 8468 SHA256: 7b287392f42bfabaada8dec9f8ddf23eba3201e76e259cc21267578c15be5f0a SHA1: f124653513ba974266fb7af82d8d90e1ea62ef04 MD5sum: 9454a50bdc4c94fc87caaa82e878af22 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).