Package: postgresql-12-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-12, postgresql-12-jit-llvm (>= 15) Homepage: https://github.com/wulczer/first_last_agg Priority: optional Section: database Filename: pool/main/f/first-last-agg/postgresql-12-first-last-agg_0.1.4-4-gd63ea3b-8.pgdg22.04+1_amd64.deb Size: 8532 SHA256: 103fb9b32d9e23dd521d0cf9a2f4b7a39b21a4a1d7c63ec645d032bee0849fec SHA1: 82efc93074ae6cd682d70304b431d2af71ce93bd MD5sum: d984a5273080b0bbc46ab029e04aa14c 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).