You
Is unknown really better than any?
ChatGPT
Yes, because it forces a check before use. any disables the checker silently and spreads through everything it touches; unknown keeps the value opaque until you narrow it, which is exactly the discipline you wanted when you reached for a type.
Tool steps: 3 (reasoning summary, call to python, execution output)
reasoning summary
Checked the query plan, then compared index options.
call to python
rows = run_sql("EXPLAIN (ANALYZE) SELECT ...")
print(rows[:3])execution output
Seq Scan on events (cost=0.00..812431.00 rows=41203122 width=16)
Rows Removed by Filter: 38996878
Planning Time: 0.214 ms
Execution Time: 11842.663 ms