Package: postgresql-13-first-last-agg Source: first-last-agg Version: 0.1.4-4-gd63ea3b-8.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 51 Depends: postgresql-13, postgresql-13-jit-llvm (>= 10) Homepage: https://github.com/wulczer/first_last_agg Priority: optional Section: database Filename: pool/main/f/first-last-agg/postgresql-13-first-last-agg_0.1.4-4-gd63ea3b-8.pgdg20.04+1_amd64.deb Size: 8808 SHA256: a5e94e81393265c671bdd024029636dc98236a487abbd9aec495df689d2efc32 SHA1: df65749a50050a305981cc3df465323406fd9f41 MD5sum: 2a53d60a4d42117ee57bb002789926dc 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).