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Advent of Code 2022: PostgreSQL

First create a database and load the schema with

psql < schema.sql

Then each day is self-contained and written in PSQL:

cd day01
psql < program.sql

The input is placed in input.txt alongside the program.

Limitations

  • PSQL syntax and macros are allowed
  • PostgreSQL version is 14.5
  • User running the code is a postgres superuser
  • Extensions, PLPgSQL, others languages, etc are allowed but solutions should primarily be in SQL where possible.