Package: postgresql-11-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-11, postgresql-11-jit-llvm (>= 15) Homepage: https://github.com/wulczer/first_last_agg Priority: optional Section: database Filename: pool/main/f/first-last-agg/postgresql-11-first-last-agg_0.1.4-4-gd63ea3b-8.pgdg22.04+1_amd64.deb Size: 8520 SHA256: 229c3d82afb649eef9423faefa2c384a401c58a04ce94afc9fe85aeb432afd11 SHA1: 72e47150b4322270e5a4c62127a70074e7a37031 MD5sum: 53cd5fb9cea2a2fd56549349ffeb3af7 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).