pqr.sql: Generate QR Codes with Pure SQL in PostgreSQL

As my cat woke me up way too early for a Saturday morning, I decided to put all this extra time (and my ChatGPT Pro subscription) into good use and generated a QR-code generator for PostgreSQL, written as a single pure SQL statement . No external libraries or Postgres extension installation needed! The pqr.sql example usage is simple: $ psql -qf pqr.sql -v payload='Hello, World!' There&rsquo;s…