• Remove experimental marker
  • The design has been sufficiently reviewed and aligns with the direction
    of pg_stat_statements, and additional stress testing has been done on
    concurrency and scaling issues
• Postgres 19: Pass missing_ok=true for pgstat_drop_entry
  • Stats entries can get dropped outside of the extension's control, e.g.
    when a database is dropped. This avoids errors when attempting to drop
    an already dropped stats entry.
• Postgres 19: Update jumble funcs for Postgres 19 beta 4
• Fix compiler warnings